UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-21309 --------- Advent Claymore Convertible Securities and Income Fund -------------------------------------------------------------------------------- (Exact name of registrant as specified in charter) 1065 Avenue of the Americas, New York, NY 10018 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip code) Robert White, Treasurer 1065 Avenue of the Americas, New York, NY 10018 -------------------------------------------------------------------------------- (Name and address of agent for service) Registrant's telephone number, including area code: (212) 479-0675 -------------- Date of fiscal year end: October 31 ---------- Date of reporting period: April 30, 2008 -------------- Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO STOCKHOLDERS. The registrant's semi-annual report transmitted to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940 is as follows: SEMIANNUAL REPORT April 30, 2008 (Unaudited) | Advent Claymore Convertible | AVK Securities and Income Fund | | Logo: ADVENT CAPITAL MANAGEMENT Logo: Claymore (R) AVK | Advent Claymore Convertible Securities and Income Fund Fund SUMMARY | AS OF APRIL 30, 2008 (unaudited) FUND STATISTICS -------------------------------------------------------- Share Price $23.44 Common Share Net Asset Value $24.78 Premium/Discount to NAV -5.41% Net Assets Applicable to Common Shares ($000) $583,216 -------------------------------------------------------- TOTAL RETURNS -------------------------------------------------------- (INCEPTION 4/30/03) MARKET NAV -------------------------------------------------------- Six Month -2.03% -8.12% One Year -8.03% -3.47% Three Year 10.75% 9.76% Five Year 8.51% 10.29% Since Inception -average annual 8.51% 10.29% -------------------------------------------------------- % OF LONG-TERM TOP TEN INDUSTRIES INVESTMENTS -------------------------------------------------------- Pharmaceuticals 10.8% Health Care Products and Services 8.9% Telecommunications 7.3% Insurance 6.1% Electronic Equipment and Components 5.9% Financial Services 5.8% Utilities - Gas and Electric 5.6% Banking and Finance 4.9% Computers - Software and Peripherals 4.7% Oil and Gas 3.9% -------------------------------------------------------- % OF LONG-TERM TOP TEN ISSUERS INVESTMENTS -------------------------------------------------------- Watson Pharmaceuticals, Inc. 2.6% International Game Technology 2.6% Eastman Kodak Co. 2.5% Intel Corp. 2.5% Freeport-McMoRan Copper & Gold, Inc. 2.5% New York Community Capital Trust V 2.4% NII Holdings, Inc. 2.1% Allergan, Inc. 2.1% Entergy Corp. 2.1% Mylan, Inc. 2.1% -------------------------------------------------------- Past performance does not guarantee future results. All portfolio data is subject to change daily. For more current information, please visit www.claymore.com. The above summaries are provided for informational purposes only and should not be viewed as recommendations. Line Chart: SHARE PRICE & NAV PERFORMANCE SHARE PRICE NAV 27.86 27.89 27.94 28.13 28.03 28.27 27.88 28.31 27.9 28.42 28 28.37 28.05 28.4 28.03 28.22 27.8 28.2 27.65 28.16 27.5 28.17 27.68 28.13 27.58 28.17 27.6 28.32 27.5 28.37 27.58 28.37 27.74 28.41 27.38 28.16 27.47 28.22 27.58 28.24 27.49 28.42 27.57 28.54 27.7 28.62 27.71 28.64 27.85 28.62 27.81 28.47 27.21 28.08 27.24 28.22 27.25 28.31 27.08 28.15 27.08 28.13 27.5 28.31 27.67 28.41 27.79 28.44 27.89 28.43 27.98 28.35 27.53 28.33 27.35 28.19 27.34 28.06 27.07 28.07 27.24 28.2 27.54 28.22 27.63 28.23 27.79 28.43 28.21 28.53 27.85 28.48 28.04 28.62 27.83 28.62 27.58 28.38 27.5 28.21 27.55 28.46 27.52 28.55 27.1 28.47 26.95 28.28 26.13 28.19 26.25 28.36 26.25 28.12 26.29 28.13 25.84 27.61 25.45 27.52 24.95 27.02 24.7 26.77 24.61 26.89 24.92 26.79 24.02 26.57 23 26.65 23.41 26.17 23.61 26.26 23.84 26.54 24.05 26.81 23.97 26.52 23.45 26.38 23.37 26.32 23.08 25.98 22.5 25.65 21.75 25.41 23.6 25.86 23.85 25.92 24 26 24.5 26.29 24.81 26.33 24.9 26.53 24.72 26.4 24.35 25.96 24.6 26.28 24.44 26.23 24.8 26.42 25.1 26.71 24.9 26.59 24.89 26.66 24.65 26.49 24.57 26.41 24.57 26.6 24.3 26.51 24.25 26.68 24.5 26.75 24.7 26.64 24.87 27.17 25.35 27.46 25.07 27.38 25.2 27.45 25.17 27.41 25.17 27.31 25.35 27.49 25.68 27.64 25.56 27.57 25.76 27.87 25.58 27.93 25.27 27.79 25.29 27.79 25.62 28.04 25.46 27.95 25.49 28.17 25.45 28.23 25.28 27.95 25.36 28.23 25.41 28.04 25.37 27.88 25.18 28.02 25.21 28.1 25.01 27.63 24.65 27.57 24.81 27.62 24.68 27.6 24.87 27.72 25.15 27.93 25.18 28.13 25.21 27.94 25.15 28.23 25.03 27.84 24.92 27.89 24.71 27.89 24.62 28.11 24.25 27.64 24.25 27.66 23.82 27.5 23.67 27.19 23.51 27.31 23.48 27.3 23.49 27.02 23.4 26.9 23.25 26.42 23.05 26.26 22.65 26.04 22.79 26.23 22.58 26 22.4 26.07 23 26.56 22.9 26.71 23.5 26.97 23.62 26.84 23.79 26.67 23.9 26.84 24.08 27.09 23.91 27.21 23.99 27.26 23.84 26.75 23.5 26.62 23.4 26.49 23.21 26.23 22.71 25.93 22.5 25.96 22.46 26 22.5 25.99 22.45 26.19 23.25 26.34 23.25 26.34 22.92 26.14 22.69 26.19 23.25 26.16 23.17 26.08 23.63 26.04 23.6 25.62 23.18 25.56 22.76 25.38 22.9 25.37 23.34 25.58 23.08 25.48 23.15 25.55 23.25 25.22 22.95 25.02 22.59 24.51 22.13 24.27 21.95 24.04 22.02 24.18 22.33 24.51 22.51 24.39 22.89 24.62 23.04 24.83 23.31 24.86 23.39 25.13 23.74 25.46 23.94 25.35 23.35 24.77 23.21 24.68 23 24.74 22.85 24.67 23.04 24.79 23.25 24.88 23.1 24.91 22.27 24.74 22.13 24.76 22.23 24.87 22.38 24.94 22.62 24.77 22.5 24.81 22.78 25.05 22.91 25.25 23.07 25.22 23 25.1 22.6 24.68 22.8 24.61 22.44 24.48 22.49 24.59 22.3 24.1 22.3 23.91 21.85 23.46 21.95 23.81 21.49 23.55 21.4 23.6 21.03 23.41 20.24 22.88 20.76 23.44 20.48 23.06 20.61 23.28 20.83 23.61 20.99 23.78 21.23 23.76 21.32 23.72 21.43 23.55 21.25 23.51 21.69 23.98 21.8 24.06 21.96 24.16 22.09 24.31 22.33 24.44 22.32 24.43 22.2 24.34 22.29 24.33 22.12 24.01 22.01 23.93 22.26 23.97 22.23 24.38 22.08 24.39 22.1 24.57 22.45 24.64 22.41 24.48 22.86 24.51 22.92 24.57 23.11 24.73 23.3 24.78 23.44 24.72 23.44 24.78 Bar Chart: MONTHLY DIVIDENDS PER SHARE May 07 0.1718 Jun 0.1718 Jul 0.1718 Aug 0.1718 Sep 0.1718 Oct 0.1718 Nov 0.1718 Dec* 0.2993 Jan 08 0.1718 Feb 0.1718 Mar 0.1718 Apr 0.1718 *Includes long-term capital gains distribution of $0.1275. Pie Chart: PORTFOLIO COMPOSITION (% of Total Investments) Asset Class ----------- Convertible Securities 80.4% High Yield Securities 14.9% Short-Term Investment 3.1% Common Stock 1.1% Term Loans 0.5% 2 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Portfolio of INVESTMENTS | APRIL 30, 2008 (unaudited) NUMBER OF SHARES VALUE ----------------------------------------------------------------------------------- LONG-TERM INVESTMENTS - 138.9% CONVERTIBLE PREFERRED STOCKS - 54.1% ADVERTISING - 0.7% 335,800 Interpublic Group Cos., Elf Special Financing Ltd., 3.15%, 2009 (Cayman Islands) (a)(b) $ 3,986,800 ----------------------------------------------------------------------------------- AIRLINES - 1.6% 374,800 Continental Airlines Finance Trust II, 6.00%, 2030 9,206,025 ----------------------------------------------------------------------------------- ALUMINUM, STEEL AND OTHER METALS - 3.4% 3,500 Freeport-McMoRan Copper & Gold, Inc., Ser. B, 5.50% 8,619,625 70,000 Freeport-McMoRan Copper & Gold, Inc., 6.75%, 2010 11,405,800 ----------------------------------------------------------------------------------- 20,025,425 ----------------------------------------------------------------------------------- AUTOMOTIVE - 1.5% 230,876 Ford Motor Co. Capital Trust II, 6.50%, 2032 8,507,781 ----------------------------------------------------------------------------------- BANKING AND FINANCE - 4.6% 6,750 Bank of America Corp., Ser. L, 7.25%, 2049 7,411,500 402,200 New York Community Capital Trust V, 6.00%, 2051 19,607,250 ----------------------------------------------------------------------------------- 27,018,750 ----------------------------------------------------------------------------------- COMMUNICATIONS EQUIPMENT - 3.4% 19,900 Lucent Technologies Capital Trust I, 7.75%, 2017 15,124,000 437,767 Merrill Lynch & Co., Inc., Ser. Motorola, 18.70%, 2008 (a)(c) 4,806,682 ----------------------------------------------------------------------------------- 19,930,682 ----------------------------------------------------------------------------------- COMPUTERS - SOFTWARE AND PERIPHERALS - 0.9% 260,010 Merrill Lynch & Co., Inc., Ser. Dell, Inc., 14.85%, 2008 (a)(c) 5,007,792 ----------------------------------------------------------------------------------- DIVERSIFIED METALS AND MINING - 2.5% 200,000 Vale Capital Ltd., Ser RIO, 5.50%, 2010 (Brazil) (c) 14,650,000 ----------------------------------------------------------------------------------- ELECTRONIC EQUIPMENT AND COMPONENTS- 1.7% 445,820 Wachovia Bank NA, Ser. Intel Corp., 8.00%, 2008 (a)(c) 10,157,028 ----------------------------------------------------------------------------------- FINANCIAL SERVICES - 7.0% 60,000 AMG Capital Trust II, 5.15%, 2037 (a) 2,400,000 65,000 Affiliated Managers Group, Inc., 5.10%, 2036 2,831,563 250,000 Affiliated Managers Group, Inc., 5.10%, 2036 (a) 10,890,625 61,000 Citigroup, Inc., Ser. T, 6.50%, 2015 3,181,150 199 Fannie Mae, 5.375%, 2008 (d) 14,129,050 100,000 Lazard Ltd., 6.625%, 2008 (Bermuda) 3,243,000 4,500 SLM Corp., Ser. C, 7.25%, 2010 4,316,625 ----------------------------------------------------------------------------------- 40,992,013 ----------------------------------------------------------------------------------- HEALTH CARE PRODUCTS AND SERVICES - 1.6% 7,000 HealthSouth Corp, 6.50% (a) 5,794,250 108,865 Lehman Brothers Holdings, Inc., Ser. Unitedhealth Group, Inc., 3.00%, 2008 (c) 3,575,126 ----------------------------------------------------------------------------------- 9,369,376 ----------------------------------------------------------------------------------- INSURANCE - 7.6% 12,000 Alleghany Corp., 5.75%, 2009 3,872,774 70,000 Aspen Insurance Holdings, Ltd., Ser. AHL, 5.625% (Bermuda) 3,433,500 136,000 Citigroup Funding, Inc., Ser. Genworth Financial, Inc., 5.807%, 2008 (b)(c) 3,259,920 537,003 MetLife, Inc., Ser. B, 6.375%, 2008 (e) 15,863,069 100,000 Platinum Underwriters Holdings, Ltd., 6.00%, 2009 (Bermuda) 3,174,000 70,000 Reinsurance Group of America, Equity Security Unit, 5.75%, 2051 4,834,375 700,000 XL Capital Ltd., 7.00%, 2009 (Cayman Islands) (e) 9,849,000 ----------------------------------------------------------------------------------- 44,286,638 ----------------------------------------------------------------------------------- NUMBER OF SHARES VALUE ----------------------------------------------------------------------------------- MISCELLANEOUS CONSUMER DISCRETIONARY - 1.1% 136,379 Avery Dennison Corp., 7.875%, 2010 $ 6,514,825 ----------------------------------------------------------------------------------- OIL AND GAS - 0.5% 24,375 Chesapeake Energy Corp., 4.50%, 2049 3,138,281 ----------------------------------------------------------------------------------- PHARMACEUTICALS - 5.3% 18,000 Mylan, Inc., 6.50%, 2010 16,778,520 78,291 Schering-Plough Corp., 6.00%, 2010 14,133,874 ----------------------------------------------------------------------------------- 30,912,394 ----------------------------------------------------------------------------------- REAL ESTATE INVESTMENT TRUSTS - 1.4% 450,000 HRPT Properties Trust, Ser. D, 6.50%, 2049 7,942,500 ----------------------------------------------------------------------------------- TELECOMMUNICATIONS - 1.3% 128,095 Crown Castle International Corp., 6.25%, 2012 7,429,510 ----------------------------------------------------------------------------------- TRANSPORTATION - 2.5% 160,000 Bristow Group, Inc. 5.50%, 2009 10,521,600 2,500 Kansas City Southern, 5.125%, 2049 4,073,750 ----------------------------------------------------------------------------------- 14,595,350 ----------------------------------------------------------------------------------- UTILITIES - GAS AND ELECTRIC - 5.5% 83,082 AES Trust VII, 6.00%, 2008 4,154,100 250,660 Entergy Corp., 7.625%, 2009 16,849,365 29,000 NRG Energy, Inc., 5.75%, 2009 10,927,563 ----------------------------------------------------------------------------------- 31,931,028 ----------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCKS - 54.1% (Cost $323,387,091) 315,602,198 ----------------------------------------------------------------------------------- PRINCIPAL AMOUNT VALUE ----------------------------------------------------------------------------------- CONVERTIBLE BONDS - 61.2% AIRLINES - 1.9% $4,000,000 AMR Corp., B-, 4.50%, 2/15/24 $ 3,755,000 9,500,000 JetBlue Airways Corp., CCC, 3.75%, 3/15/35 7,006,250 ----------------------------------------------------------------------------------- 10,761,250 ----------------------------------------------------------------------------------- AUTOMOTIVE - 2.3% 18,750,000 General Motors Corp., Ser. B, B-, 5.25%, 3/06/32 13,222,500 ----------------------------------------------------------------------------------- BANKING AND FINANCE - 2.2% 2,900,000 Boston Private Financial Holdings, Inc., NR, 3.00%, 7/15/27 2,599,125 4,250,000 National City Corp., A, 4.00%, 2/01/11 3,607,188 7,000,000 PrivateBancorp, Inc., NR, 3.625%, 3/15/27 6,571,250 ----------------------------------------------------------------------------------- 12,777,563 ----------------------------------------------------------------------------------- BIOTECHNOLOGY - 1.5% 8,000,000 Genzyme Corp., BBB+, 1.25%, 12/01/23 8,910,000 ----------------------------------------------------------------------------------- COMMERCIAL SERVICES - 2.1% 9,000,000 Quanta Services, Inc., BB, 3.75%, 4/30/26 12,273,750 ----------------------------------------------------------------------------------- COMPUTER SERVICES - 1.5% 9,000,000 Electronic Data Systems Corp., BBB-, 3.875%, 7/15/23 8,876,250 ----------------------------------------------------------------------------------- COMPUTERS - SOFTWARE AND PERIPHERALS - 4.5% 12,000,000 Novell, Inc., NR, 0.50%, 7/15/24 11,445,000 15,000,000 Red Hat, Inc., BB-, 0.50%, 1/15/24 15,018,750 ----------------------------------------------------------------------------------- 26,463,750 ----------------------------------------------------------------------------------- DIVERSIFIED METALS AND MINING - 2.4% 11,250,000 Peabody Energy Corp., B, 4.75%, 12/15/41 13,950,000 ----------------------------------------------------------------------------------- See notes to financial statements. Semiannual Report | April 30, 2008 | 3 AVK | Advent Claymore Convertible Securities and Income Fund | PORTFOLIO OF INVESTMENTS (unaudited) continued PRINCIPAL AMOUNT VALUE ----------------------------------------------------------------------------------- ELECTRONIC EQUIPMENT AND COMPONENTS - 4.8% $8,000,000 Fairchild Semiconductor International, Inc., B+, 5.00%, 11/01/08 $ 7,980,000 10,000,000 Intel Corp., A-, 2.95%, 12/15/35 9,975,000 10,000,000 Vishay Intertechnology, Inc., B+, 3.625%, 8/01/23 10,000,000 ----------------------------------------------------------------------------------- 27,955,000 ----------------------------------------------------------------------------------- FINANCIAL SERVICES - 0.7% 4,743,000 CompuCredit Corp., NR, 3.625%, 5/30/25 1,873,485 2,500,000 Countrywide Financial Corp., BB+, 0.00%, 4/15/37 (b) 2,325,000 ----------------------------------------------------------------------------------- 4,198,485 ----------------------------------------------------------------------------------- HEALTH CARE PRODUCTS AND SERVICES - 8.7% 6,000,000 Advanced Medical Optics, Inc., B-, 1.375%, 7/01/25 5,025,000 15,500,000 Allergan, Inc., A, 1.50%, 4/01/26 17,146,875 9,000,000 Gilead Sciences, Inc., NR, 0.50%, 5/01/11 12,847,500 Medtronic, Inc., AA- 3,000,000 1.50%, 4/15/11 3,108,750 12,000,000 1.625%, 4/15/13 12,480,000 ----------------------------------------------------------------------------------- 50,608,125 ----------------------------------------------------------------------------------- INSURANCE - 0.8% 5,000,000 Prudential Financial, Inc., A+, 0.50125%, 12/12/36 (b) 4,876,500 ----------------------------------------------------------------------------------- INTERNET - 0.9% 5,000,000 Amazon.com, Inc., B+, 4.75%, 2/01/09 5,481,250 ----------------------------------------------------------------------------------- LEISURE AND ENTERTAINMENT - 4.1% 3,000,000 Carnival Corp., A-, 2.00%, 4/15/21 (Panama) 3,292,500 21,000,000 International Game Technology, BBB, 2.60%, 12/15/36 20,658,750 ----------------------------------------------------------------------------------- 23,951,250 ----------------------------------------------------------------------------------- OIL AND GAS- 2.0% 8,000,000 Chesapeake Energy Corp., BB, 2.75%, 11/15/35 11,750,000 ----------------------------------------------------------------------------------- PHARMACEUTICALS - 9.6% 7,000,000 Cubist Pharmaceuticals, Inc., NR, 2.25%, 6/15/13 (e) 6,527,500 4,000,000 Invitrogen Corp., NR, 3.25%, 6/15/25 4,615,000 12,500,000 Omnicare, Inc., B+, 3.25%, 12/15/35 8,703,125 13,000,000 Teva Pharmaceutical Finance Co. BV, Ser. D, BBB+, 1.75%, 2/01/26 (Israel) 14,852,500 22,000,000 Watson Pharmaceuticals, Inc., BB+, 1.75%, 3/15/23 21,450,000 ----------------------------------------------------------------------------------- 56,148,125 ----------------------------------------------------------------------------------- PHOTO EQUIPMENT & SUPPLIES - 3.5% 21,000,000 Eastman Kodak Co., B, 3.375%, 10/15/33 20,370,000 ----------------------------------------------------------------------------------- TELECOMMUNICATIONS - 4.8% 5,000,000 Amdocs Ltd., BBB, 0.50%, 3/15/24 (Guernsey) 4,981,250 Level 3 Communications, Inc., CCC 4,000,000 6.00%, 9/15/09 3,760,000 2,000,000 6.00%, 3/15/10 1,710,000 NII Holdings, Inc., NR 10,000,000 3.125%, 6/15/12 (a) 8,400,000 10,500,000 3.125%, 6/15/12 8,820,000 ----------------------------------------------------------------------------------- 27,671,250 ----------------------------------------------------------------------------------- TRANSPORTATION - 0.9% 2,000,000 Excel Maritime Carriers Ltd., NR, 1.875%, 10/15/27 (Liberia) (a) 1,675,000 3,789,000 YRC Worldwide, Inc., B+, 5.00%, 8/08/23 3,348,528 ----------------------------------------------------------------------------------- 5,023,528 ----------------------------------------------------------------------------------- PRINCIPAL AMOUNT VALUE ----------------------------------------------------------------------------------- UTILITIES--GAS AND ELECTRIC - 0.9% $5,000,000 Nabors Industries, Inc., BBB+, 0.94%, 5/15/11 $ 5,293,750 ----------------------------------------------------------------------------------- WASTE MANAGEMENT - 1.1% 6,900,000 Allied Waste Industries, Inc., B+, 4.25%, 4/15/34 6,399,750 ----------------------------------------------------------------------------------- TOTAL CONVERTIBLE BONDS - 61.2% (Cost $349,959,376) 356,962,076 ----------------------------------------------------------------------------------- CORPORATE BONDS - 21.3% ADVERTISING - 0.3% 1,500,000 Interpublic Group of Cos., Inc., B+, 7.25%, 8/15/11 1,477,500 ----------------------------------------------------------------------------------- AUTO PARTS AND EQUIPMENT - 0.8% 4,500,000 Tenneco, Inc., B+, 8.125%, 11/15/15 (a) 4,635,000 ----------------------------------------------------------------------------------- BUILDING PRODUCTS - 0.6% 4,175,000 U.S. Concrete, Inc., B, 8.375%, 4/01/14 3,402,625 ----------------------------------------------------------------------------------- COMMUNICATIONS EQUIPMENT - 0.9% 5,166,000 Superior Essex Communications LLC/Essex Group, Inc., BB-, 9.00%, 4/15/12 5,127,255 ----------------------------------------------------------------------------------- COMMUNICATIONS, MEDIA AND ENTERTAINMENT - 2.2% 2,000,000 Cablevision Systems Corp., B+, 8.00%, 4/15/12 2,000,000 2,900,000 EchoStar DBS Corp., BB-, 6.625%, 10/01/14 2,842,000 5,000,000 Mediacom LLC, B-, 9.50%, 1/15/13 4,887,500 3,000,000 Rainbow National Services LLC, BB, 8.75%, 9/01/12 (a) 3,101,250 ----------------------------------------------------------------------------------- 12,830,750 ----------------------------------------------------------------------------------- COMPUTERS - SOFTWARE AND PERIPHERALS - 1.1% 6,000,000 SunGard Data Systems, Inc., B-, 10.25%, 8/15/15 6,405,000 ----------------------------------------------------------------------------------- DIVERSIFIED OPERATIONS - 1.1% 6,000,000 Leucadia National Corp., BB+, 8.125%, 9/15/15 6,150,000 ----------------------------------------------------------------------------------- ELECTRONIC EQUIPMENT AND COMPONENTS - 1.6% 7,684,000 Freescale Semiconductor, Inc., B-, 8.875%, 12/15/14 6,800,340 4,000,000 Spansion, LLC, B, 11.25%, 1/15/16 (a) 2,580,000 ----------------------------------------------------------------------------------- 9,380,340 ----------------------------------------------------------------------------------- FINANCIAL SERVICES - 0.3% 2,000,000 JPMorgan Chase & Co., A, 7.90%, 04/29/49 2,043,986 ----------------------------------------------------------------------------------- FOOD, BEVERAGE AND TOBACCO - 0.3% 2,000,000 Vector Group Ltd., NR, 11.00%, 8/15/15 (a) 2,030,000 ----------------------------------------------------------------------------------- HEALTH CARE PRODUCTS AND SERVICES - 1.5% 2,500,000 Axcan Intermediate Holdings, Inc., B-, 12.75%, 3/01/16 (a) 2,458,500 6,100,000 Hanger Orthopedic Group, Inc., CCC+, 10.25%, 6/01/14 6,283,000 ----------------------------------------------------------------------------------- 8,741,500 ----------------------------------------------------------------------------------- OFFICE EQUIPMENT - 0.6% 3,500,000 Xerox Capital Trust I, BB+, 8.00%, 2/01/27 3,500,662 ----------------------------------------------------------------------------------- OIL AND GAS - 1.3% 4,500,000 CCS, Inc., B- 11.00%, 11/15/15 (Canada) (a) 4,044,600 3,000,000 Williams Cos., Inc., BB+, 8.125%, 3/15/12 3,300,000 ----------------------------------------------------------------------------------- 7,344,600 ----------------------------------------------------------------------------------- PACKAGING AND CONTAINERS - 0.9% 2,000,000 Jefferson Smurfit Corp., B-, 8.25%, 10/01/12 1,830,000 3,500,000 Smurfit-Stone Container Enterprises, Inc., B-, 8.375%, 7/01/12 3,220,000 ----------------------------------------------------------------------------------- 5,050,000 ----------------------------------------------------------------------------------- See notes to financial statements. 4 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund | PORTFOLIO OF INVESTMENTS (unaudited) continued PRINCIPAL AMOUNT VALUE ----------------------------------------------------------------------------------- PUBLISHING - 0.6% Dex Media West, BB- $1,000,000 8.50%, 8/15/10 $ 987,500 2,940,000 9.875%, 8/15/13 2,778,300 ----------------------------------------------------------------------------------- 3,765,800 ----------------------------------------------------------------------------------- RETAIL - SPECIALTY STORES - 0.4% 2,500,000 Simmons Bedding Co., B, 7.875%, 1/15/14 2,218,625 ----------------------------------------------------------------------------------- TELECOMMUNICATIONS - 4.2% 5,000,000 Alamosa Delaware, Inc., BB, 8.50%, 1/31/12 4,638,265 4,500,000 Broadview Networks Holdings, Inc., CCC+, 11.375%, 9/01/12 4,320,000 7,673,000 Centennial Cellular Co., B, 10.125%, 6/15/13 8,037,467 5,000,000 Level 3 Financing, Inc., CCC+, 12.25%, 3/15/13 5,062,500 2,240,000 PanAmSat Corp., BB-, 9.00%, 8/15/14 2,270,800 ----------------------------------------------------------------------------------- 24,329,032 ----------------------------------------------------------------------------------- TRANSPORTATION - 0.5% 3,500,000 USF Corp., B+, 8.50%, 4/15/10 3,220,000 ----------------------------------------------------------------------------------- TRAVEL SERVICES - 0.7% 4,500,000 Travelport LLC, B, 9.875%, 9/01/14 4,370,625 ----------------------------------------------------------------------------------- UTILITIES- GAS AND ELECTRIC- 1.4% 8,000,000 Texas Competitive Electric Holdings Co., LLC, CCC, 10.25%, 11/01/15 (a) 8,380,000 ----------------------------------------------------------------------------------- TOTAL CORPORATE BONDS - 21.3% (Cost $125,854,719) 124,403,300 ----------------------------------------------------------------------------------- NUMBER OF SHARES VALUE ----------------------------------------------------------------------------------- COMMON STOCKS - 1.6% OIL AND GAS - 1.6% 121,300 Enerplus Resources Fund - Income Trust (Canada) $ 5,435,676 141,468 Harvest Energy Trust - Income Trust (Canada) 3,138,114 20,000 Vermillion Energy Trust - Income Trust (Canada) 787,807 ----------------------------------------------------------------------------------- (Cost $9,425,461) 9,361,597 ----------------------------------------------------------------------------------- PRINCIPAL AMOUNT VALUE ----------------------------------------------------------------------------------- TERM LOANS (FUNDED) - 0.7% $3,950,000 HCA, Inc., Term Loan B, 7.08%, 11/16/13, NR (b) (Cost $3,994,716) $ 3,757,627 ----------------------------------------------------------------------------------- TOTAL LONG-TERM INVESTMENTS - 138.9% (Cost $812,621,363) 810,086,798 ----------------------------------------------------------------------------------- NUMBER OF SHARES VALUE ----------------------------------------------------------------------------------- SHORT-TERM INVESTMENTS - 4.4% MONEY MARKET FUND - 4.4% 25,926,681 Goldman Sachs Financial Prime Obligations (Cost $25,926,681) $ 25,926,681 ----------------------------------------------------------------------------------- TOTAL INVESTMENTS - 143.3% (Cost $838,548,044) 836,013,479 Other assets in excess of liabilities - 3.8% 22,202,421 Preferred Stock, at redemption value - (-47.1% of Net Assets Applicable to Common Shareholders or -32.9% of Total Investments) (275,000,000) ----------------------------------------------------------------------------------- NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS - 100.0% $ 583,215,900 =================================================================================== LLC - Limited Liability Corp. (a) Securities are exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At April 30, 2008, these securities amounted to 13.8% of net assets. (b) Floating rate security. The rate shown is as of April 30, 2008. (c) Synthetic Convertible - A synthetic convertible security is either a bond or preferred security structured by an investment bank that provides exposure to a specific company's common stock. (d) Pursuant to a securities lending agreement, the Fund loaned all or a portion of these securities having an aggregate fair value of approximately $14.1 million and received as collateral readily marketable securities with an aggregate fair value of approximately $14.4 million. (e) All or portion of these securities have been physically segregated in connection with swap agreements. Ratings shown are per Standard & Poor's and are unaudited. Securities classified as NR are not rated by Standard & Poor's. All percentages shown in the Portfolio of Investments are based on Net Assets Applicable to Common Shareholders unless otherwise noted. See notes to financial statements. Semiannual Report | April 30, 2008 | 5 AVK | Advent Claymore Convertible Securities and Income Fund Statement of ASSETS AND LIABILITIES | APRIL 30, 2008 (unaudited) ASSETS Investments in securities, at value (cost $838,548,044) $836,013,479 Cash 5,333,795 Restricted cash 604,119 Foreign currency, at value (cost $40,387) 40,602 Receivable for securities sold 18,343,115 Interest receivable 5,542,622 Dividends receivable 2,721,504 Unrealized appreciation on forward currency exchange contracts 10,285 Other assets 10,948 -------------------------------------------------------------------------------------------------------------- Total assets 868,620,469 -------------------------------------------------------------------------------------------------------------- LIABILITIES Payable for securities purchased 8,251,835 Net unrealized depreciation on swaps 1,162,766 Advisory fee payable 295,307 Dividends payable - preferred shares 256,446 Servicing fee payable 86,855 Accrued expenses and other liabilities 351,360 -------------------------------------------------------------------------------------------------------------- Total liabilities 10,404,569 -------------------------------------------------------------------------------------------------------------- PREFERRED STOCK, AT REDEMPTION VALUE Auction Market Preferred Shares $0.001 par value per share; 11,000 authorized, issued and outstanding at $25,000 per share liquidation preference 275,000,000 -------------------------------------------------------------------------------------------------------------- $583,215,900 ============================================================================================================== NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS COMPOSITION OF NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS Common Stock, $0.001 par value per share; unlimited number of shares authorized, 23,531,322 shares issued and outstanding $ 23,531 Additional paid-in capital 557,964,956 Net unrealized depreciation on investments, swaps and foreign currency translation (3,640,426) Accumulated net realized gain on investments, swaps and foreign currency transactions 34,040,486 Undistributed net investment income (5,172,647) -------------------------------------------------------------------------------------------------------------- Net Assets Applicable to Common Shareholders $583,215,900 ============================================================================================================== NET ASSET VALUE APPLICABLE TO COMMON SHAREHOLDERS (based on 23,531,322 common shares outstanding) $ 24.78 ============================================================================================================== See notes to financial statements. 6 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Statement of OPERATIONS | FOR THE SIX MONTHS ENDED APRIL 30, 2008 (unaudited) INVESTMENT INCOME Dividends (net of foreign withholding taxes of $87,341) $ 12,476,437 Interest 8,510,636 Securities lending income (net of foreign withholding tax credits of $8,817) 346,317 --------------------------------------------------------------------------------------------------------------- Total income $ 21,333,390 --------------------------------------------------------------------------------------------------------------- EXPENSES Advisory fee 2,336,443 Servicing agent fee 908,617 Preferred share maintenance 363,913 Professional fees 91,052 Printing 86,984 Trustees' fees and expenses 80,174 Fund accounting 79,241 Administration fee 70,617 Custodian 55,075 Insurance 39,925 ICI dues 15,383 NYSE listing fee 10,738 Transfer agent 9,744 Rating agency fee 5,662 Miscellaneous 7,656 --------------------------------------------------------------------------------------------------------------- Total expenses 4,161,224 Advisory and Servicing agent fees waived (865,349) --------------------------------------------------------------------------------------------------------------- Net expenses 3,295,875 --------------------------------------------------------------------------------------------------------------- NET INVESTMENT INCOME 18,037,515 --------------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, SWAPS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments 35,332,779 Swaps (54,239) Foreign currency transactions 418,401 Net change in unrealized appreciation (depreciation) on: Investments (100,053,992) Swaps (813,149) Foreign currency translation (66,976) --------------------------------------------------------------------------------------------------------------- NET REALIZED AND UNREALIZED LOSS ON INVESTMENTS, SWAPS AND FOREIGN CURRENCY TRANSACTIONS (65,237,176) --------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO PREFERRED SHAREHOLDERS FROM NET INVESTMENT INCOME AND REALIZED GAINS (6,633,866) --------------------------------------------------------------------------------------------------------------- NET DECREASE IN NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS RESULTING FROM OPERATIONS $ (53,833,527) =============================================================================================================== See notes to financial statements. Semiannual Report | April 30, 2008 | 7 AVK | Advent Claymore Convertible Securities and Income Fund Statement of CHANGES IN NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS | FOR THE SIX MONTHS FOR THE ENDED APRIL 30, 2008 YEAR ENDED (UNAUDITED) OCTOBER 31, 2007 ---------------------------------------------------------------------------------------------------------------- INCREASE IN NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS RESULTING FROM OPERATIONS: Net investment income $ 18,037,515 $ 45,710,140 Net realized gain on investments, swaps and foreign currency transactions 35,696,941 22,996,632 Net change in unrealized appreciation (depreciation) on investments, swaps and foreign currency translation (100,934,117) 39,775,644 ---------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO PREFERRED SHAREHOLDERS FROM: From and in excess of net investment income (4,895,544) (12,201,859) From net realized gains (1,738,322) (2,568,713) ---------------------------------------------------------------------------------------------------------------- (6,633,866) (14,770,572) ---------------------------------------------------------------------------------------------------------------- Net increase/decrease in net assets applicable to Common Shareholders resulting from operations (53,833,527) 93,711,844 ---------------------------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS TO COMMON SHAREHOLDERS: From and in excess of net investment income (19,507,854) (48,853,828) From net realized gains (7,748,476) (11,762,566) ---------------------------------------------------------------------------------------------------------------- Total dividends and distributions to common shareholders (27,256,330) (60,616,394) ---------------------------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS: Reinvestment of dividends -- 3,827,474 ---------------------------------------------------------------------------------------------------------------- Total increase/decrease in net assets (81,089,857) 36,922,924 ---------------------------------------------------------------------------------------------------------------- NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS Beginning of period 664,305,757 627,382,833 ---------------------------------------------------------------------------------------------------------------- End of period (including undistributed net investment income/(loss) of ($5,172,647) and $1,193,236 respectively) $583,215,900 $664,305,757 ================================================================================================================ See notes to financial statements. 8 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Financial HIGHLIGHTS | FOR THE PERIOD FOR THE SIX APRIL 30, MONTHS ENDED FOR THE FOR THE FOR THE FOR THE 2003(a) PER SHARE OPERATING PERFORMANCE APRIL 30, YEAR ENDED YEAR ENDED YEAR ENDED YEAR ENDED THROUGH FOR A SHARE OF COMMON STOCK OUTSTANDING 2008 OCTOBER 31, OCTOBER 31, OCTOBER 31, OCTOBER 31, OCTOBER 31, THROUGHOUT THE PERIOD (UNAUDITED) 2007 2006 2005 2004 2003 ------------------------------------------------------------------------------------------------------------------------------------ NET ASSET VALUE, BEGINNING OF PERIOD $ 28.23 $ 26.82 $ 25.69 $ 26.10 $ 26.14(b) $ 23.88(b) ------------------------------------------------------------------------------------------------------------------------------------ INCOME FROM INVESTMENT OPERATIONS Net investment income (c) 0.77 1.94 1.99 2.33 2.41 0.93 Net realized and unrealized gain/loss on investments, swaps and foreign currency transactions (2.78) 2.68 2.28 0.10 0.08 2.28 DIVIDENDS TO PREFERRED SHAREHOLDERS: From and in excess of net investment income (common share equivalent basis) (0.21) (0.52) (0.56) (0.35) (0.15) (0.03) From net realized gains (common share equivalent basis) (0.07) (0.11) -- -- -- -- ------------------------------------------------------------------------------------------------------------------------------------ Total preferred distributions (common share equivalent basis) (0.28) (0.63) (0.56) (0.35) (0.15) (0.03) ------------------------------------------------------------------------------------------------------------------------------------ Total from investment operations (2.29) 3.99 3.71 2.08 2.34 3.18 ------------------------------------------------------------------------------------------------------------------------------------ COMMON AND PREFERRED SHARES' OFFERING EXPENSES CHARGED TO PAID-IN-CAPITAL IN EXCESS OF PAR VALUE -- -- --* -- (0.05) (0.06) ------------------------------------------------------------------------------------------------------------------------------------ DIVIDENDS AND DISTRIBUTIONS TO COMMON SHAREHOLDERS: From and in excess of net investment income (0.83) (2.08) (2.58) (2.49) (2.15) (0.86) Net realized gain (0.33) (0.50) -- -- (0.18) -- ------------------------------------------------------------------------------------------------------------------------------------ Total dividends and distributions to Common Shareholders (1.16) (2.58) (2.58) (2.49) (2.33) (0.86) ------------------------------------------------------------------------------------------------------------------------------------ NET ASSET VALUE, END OF PERIOD $ 24.78 $ 28.23 $ 26.82 $ 25.69 $ 26.10 $ 26.14 ==================================================================================================================================== MARKET VALUE, END OF PERIOD $ 23.44 $ 25.15 $ 27.03 $ 23.62 $ 25.41 $ 24.95 ==================================================================================================================================== TOTAL INVESTMENT RETURN (D) Net asset value -8.12% 15.63% 15.15% 8.14% 8.93% 13.29% Market value -2.03% 2.48% 26.86% 2.52% 11.44% 3.40% RATIOS AND SUPPLEMENTAL DATA Net assets, applicable to Common Shareholders, end of period (thousands) $583,216 $664,306 $627,383 $599,998 $609,455 $610,415 Preferred shares, at redemption value ($25,000 per share liquidation preference) (thousands) $275,000 $275,000 $275,000 $275,000 $275,000 $215,000 Preferred shares asset coverage per share $ 78,020 $ 85,391 $ 82,035 $ 79,545 $ 80,405 $ 95,978 RATIOS TO AVERAGE NET ASSETS APPLICABLE TO COMMON SHARES: Net Expenses, after fee waiver 1.12%(e) 1.08% 1.12% 1.12% 1.05% 0.88%(e) Net Expenses, before fee waiver 1.41%(e) 1.37% 1.41% 1.41% 1.33% 1.12%(e) Net Investment Income, after fee waiver, prior to effect of dividends to preferred shares 6.09%(e) 7.09% 7.62% 8.90% 9.07% 7.51%(e) Net Investment Income, before fee waiver, prior to effect of dividends to preferred shares 5.80%(e) 6.80% 7.33% 8.61% 8.79% 7.27%(e) Net Investment Income, after fee waiver, after effect of dividends to preferred shares 3.85%(e) 4.80% 5.49% 7.56% 8.49% 7.28%(e) Net Investment Income, before fee waiver, after effect of dividends to preferred shares 3.56%(e) 4.51% 5.20% 7.27% 8.21% 7.04%(e) RATIOS TO AVERAGE MANAGED ASSETS: (F) Net Expenses, after fee waiver 0.76%(e) 0.76% 0.77% 0.77% 0.75% 0.73%(e) Net Expenses, before fee waiver 0.96%(e) 0.96% 0.97% 0.97% 0.95% 0.93%(e) Net Investment Income, after fee waiver, prior to effect of dividends to preferred shares 4.17%(e) 4.97% 5.26% 6.14% 6.44% 6.27%(e) Net Investment Income, before fee waiver, prior to effect of dividends to preferred shares 3.97%(e) 4.77% 5.06% 5.94% 6.24% 6.07%(e) Portfolio turnover rate 33% 76% 81% 64% 112% 34% * Represents less than $0.01. (a) Commencement of operations. (b) Before reimbursement of offering expenses charged to capital during the period. (c) Based on average shares outstanding during the period. (d) Total investment return is calculated assuming a purchase of a common share at the beginning of the period and a sale on the last day of the period reported either at net asset value ("NAV") or market price per share. Dividends and distributions are assumed to be reinvested at NAV for NAV returns or the prices obtained under the Fund's Dividend Reinvestment Plan for market value returns. Total investment return does not reflect brokerage commissions. A return calculated for a period of less than one year is not annualized. (e) Annualized. (f) Managed assets are equal to net assets applicable to Common Shareholders plus outstanding leverage such as the liquidation value of preferred shares. See notes to financial statements. Semiannual Report | April 30, 2008 | 9 AVK | Advent Claymore Convertible Securities and Income Fund Notes to FINANCIAL STATEMENTS | (unaudited) Note 1 - ORGANIZATION: Advent Claymore Convertible Securities and Income Fund (the "Fund") was organized as a Delaware statutory trust on February 19, 2003. The Fund is registered as a diversified, closed-end management investment company under the Investment Company Act of 1940, as amended. Note 2 - ACCOUNTING POLICIES: The preparation of the financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from these estimates. The following is a summary of significant accounting policies followed by the Fund. (A) VALUATION OF INVESTMENTS Equity securities listed on an exchange are valued at the last reported sale price on the primary exchange on which they are traded. Equity securities traded on an exchange for which there are no transactions on a given day are valued at the mean of the closing bid and asked prices. Securities traded on NASDAQ are valued at the NASDAQ Official Closing Price. Equity securities not listed on a securities exchange or NASDAQ are valued at the mean of the closing bid and asked prices. Debt securities are valued by independent pricing services or dealers using the mean of the closing bid and asked prices for such securities or, if such prices are not available, at prices for securities of comparable maturity, quality and type. For those securities where quotations or prices are not available, valuations are determined in accordance with procedures established in good faith by the Board of Trustees. Futures contracts are valued using the settlement price established each day on the exchange on which they are traded. Short-term securities with remaining maturities of 60 days or less are valued at amortized cost, which approximates market value. (B) INVESTMENT TRANSACTIONS AND INVESTMENT INCOME Investment transactions are accounted for on the trade date. Realized gains and losses on investments are determined on the identified cost basis. Dividend income is recorded on the ex-dividend date and interest income is recorded on an accrual basis. Discounts or premiums on debt securities purchased are accreted or amortized to interest income over the lives of the respective securities using the effective interest method. (C) CURRENCY TRANSLATION Assets and liabilities denominated in foreign currencies are translated into U.S. dollars at the mean of the bid and asked price of respective exchange rates on the last day of the period. Purchases and sales of investments denominated in foreign currencies are translated at the exchange rate on the date of the transaction. The Fund does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in market prices of securities held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. Foreign exchange realized gain or loss resulting from the holding of a foreign currency, expiration of a currency exchange contract, difference in exchange rates between the trade date and settlement date of an investment purchased or sold, and the difference between dividends or interest actually received compared to the amount shown in a Fund's accounting records on the date of receipt is shown as net realized gains or losses on foreign currency transactions in the Fund's Statement of Operations. Foreign exchange unrealized gain or loss on assets and liabilities, other than investments, is shown as unrealized appreciation (depreciation) on foreign currency translation in the Fund's Statement of Operations. (D) SWAPS A swap is an agreement to exchange the return generated by one instrument for the return generated by another instrument. The Fund may enter into swap agreements to manage its exposure to interest rates and/or credit risk or to generate income. Interest rate swap agreements involve the exchange by the Fund with another party of their respective commitments to pay or receive interest. Total return swap agreements involve commitments to receive (and pay) interest over a floating rate (LIBOR) based on a notional amount. To the extent the total return of the security (price changes, interest paid/received, rebate earned on collateral posted by the Fund) is positive, the Fund will receive a payment from the counterparty (or if negative, make a payment to the counterparty). The swaps are valued daily at current market value and any unrealized gain or loss is included in the Statement of Assets and Liabilities. Gain or loss is realized on the termination date of the swap and is equal to the difference between the Fund's basis in the swap and the proceeds of the closing transaction, including any fees. During the period that l0 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund | NOTES TO FINANCIAL STATEMENTS (unaudited) continued the swap agreement is open, the Fund may be subject to risk from the potential inability of the counterparty to meet the terms of the agreement. The swaps involve elements of both market and credit risk in excess of the amounts reflected on the Statement of Assets and Liabilities. Realized gain (loss) upon termination of swap contracts is recorded on the Statement of Operations. Fluctuations in the value of swap contracts are recorded as a component of net change in unrealized appreciation (depreciation) of swap contracts. Net periodic payments received by the Fund are included as part of realized gains (losses) and, in the case of accruals for periodic payments, are included as part of unrealized appreciation (depreciation) on the Statement of Operations. (E) SECURITIES LENDING The Fund may lend its securities to broker-dealers and financial institutions. The loans are collateralized by cash or securities at least equal at all times to the market value of the securities loaned. The Fund may bear the risk of delay in recovery of, or loss of rights in, the securities loaned should the borrower of the securities experience financial difficulty. The Fund receives compensation for lending its securities in the form of fees or it retains a portion of interest on the investment of any cash received as collateral. The Fund also continues to receive interest and dividends on the securities loaned, and any gain or loss in the market price of the securities loaned that may occur during the term of the loan will be for the account of the Fund. During the six months ended April 30, 2008, the Fund maintained a securities lending agreement with Lehman Brothers acting as the counterparty. Pursuant to the lending agreement, the Fund has the right to sell the security or terminate the loan at any time upon proper notice to Lehman Brothers. The Fund does not have the right to sell or repledge the collateral received from Lehman Brothers, except in the case of default. As of April 30, 2008, the Fund loaned securities with a fair value of approximately $14.1 million and received as collateral securities with a fair value of approximately $14.4 million. The collateral received was in the form of U.S. Treasury Bonds with maturities ranging from August 2020 to August 2028. (F) CONCENTRATION OF RISK It is the Fund's policy to invest a significant portion of its assets in convertible securities. Although convertible securities do derive part of their value from that of the securities into which they are convertible, they are not considered derivative financial instruments. However, certain of the Fund's investments include features which render them more sensitive to price changes in their underlying securities. Consequently, this exposes the Fund to greater downside risk than traditional convertible securities, but still less than that of the underlying common stock. (G) DISTRIBUTIONS TO SHAREHOLDERS The Fund declares and pays monthly dividends to common shareholders. These dividends consist of investment company taxable income, which generally includes qualified dividend income, ordinary income and short-term capital gains. Any net realized long-term gains are distributed annually to common shareholders. Distributions to shareholders are recorded on the ex-dividend date. The amount and timing of distributions are determined in accordance with federal income tax regulations, which may differ from U.S. generally accepted accounting principles. Note 3 - INVESTMENT MANAGEMENT AGREEMENT, SERVICING AGREEMENT AND OTHER AGREEMENTS: Pursuant to the Investment Management Agreement (the "Agreement") between the Fund and Advent Capital Management, LLC, the Fund's investment adviser (the "Advisor"), the Advisor is responsible for the daily management for the Fund's portfolio of investments, which includes buying and selling securities for the Fund, as well as investment research. The Advisor will receive an annual fee from the Fund based on the average value of the Fund's Managed Assets, which includes the amount from the issuance of the Preferred Shares. In addition, subject to the approval of the Fund's Board of Trustees, a pro rata portion of the salaries, bonuses, health insurance, retirement benefits and similar employment costs for the time spent on Fund operations (other than the provision of services required under the Agreement) of all personnel employed by the Advisor who devote substantial time to Fund operations may be reimbursed by the Fund to the Advisor. For the six months ended April 30, 2008, the Advisor was not reimbursed by the Fund for these items. The annual fee will be determined as follows: (a) If the average value of the Fund's Managed Assets (calculated monthly) is greater than $250 million, the fee will be a maximum amount equal to 0.54% of the average value of the Fund's Managed Assets. In addition, the Advisor has agreed to waive receipt of a portion of the management fee or other expenses of the Fund in the amount of 0.115% of the average value of the Managed Assets for the first five years of the Fund's operations. Effective May 1, 2008, the Advisor agreed to waive receipt of a portion of the management fee or other expenses of the Fund in the amount of 0.065% of the average value of the Managed Assets for an additional two years. Semiannual Report | April 30, 2008 | l1 AVK | Advent Claymore Convertible Securities and Income Fund | NOTES TO FINANCIAL STATEMENTS (unaudited) continued Pursuant to a Servicing Agreement between the Fund and Claymore Securities, Inc., the Fund's servicing agent (the "Servicing Agent"), the Servicing Agent will act as servicing agent to the Fund. The Servicing Agent will receive an annual fee from the Fund, which will be based on the average value of the Fund's Managed Assets. The fee will be determined as follows: (a) If the average value of the Fund's Managed Assets (calculated monthly) is greater than $250 million, the fee will be a maximum amount equal to 0.21% of the average value of the Fund's Managed Assets. In addition, the Servicing Agent has agreed to waive receipt of a portion of the servicing fee of the Fund in the amount of 0.085% of the average value of the Managed Assets for the first five years of the Fund's operations. Effective May 1, 2008, the Servicing Agent agreed to waive receipt of a portion of the servicing fee of the Fund in the amount of 0.065% of the average value of the Managed Assets for an additional two years. The fee waivers of the Advisor and the Servicing Agent are contractual commitments of more than one year and are not subject to recoupment. The Bank of New York Mellon ("BNY") acts as the Fund's custodian, accounting agent, administrator and transfer agent. As custodian, BNY is responsible for the custody of the Fund's assets. As accounting agent and administrator, BNY is responsible for maintaining the books and records of the Fund's securities and cash. As transfer agent, BNY is responsible for performing transfer agency services for the Fund. Certain officers and trustees of the Fund are also officers and directors of the Advisor or Servicing Agent. The Fund does not compensate its officers or trustees who are officers of the aforementioned firms. Note 4 - FEDERAL INCOME TAXES: The Fund intends to comply with the requirements of Subchapter M of the Internal Revenue Code of 1986, as amended, applicable to regulated investment companies. Accordingly, no provision for U.S. federal income taxes is required. In addition, by distributing substantially all of its ordinary income and long-term capital gains, if any, during each calendar year, the Fund intends not to be subject to U.S. federal excise tax. At April 30, 2008, the cost and related gross unrealized appreciation and depreciation on investments for tax purposes, excluding swap agreements are as follows: COST OF NET TAX NET TAX UNREALIZED INVESTMENTS GROSS TAX GROSS TAX UNREALIZED DEPRECIATION FOR TAX UNREALIZED UNREALIZED DEPRECIATION ON DERIVATIVES AND PURPOSES APPRECIATION DEPRECIATION ON INVESTMENTS FOREIGN CURRENCY ------------------------------------------------------------------------------ $840,195,768 $49,866,056 $(54,048,345) $(4,182,289) $(1,146,027) The differences between book basis and tax basis unrealized appreciation/(depreciation) are attributable to the tax deferral of losses on wash sales and income adjustments for tax purposes on certain convertible securities and swaps. For the year ended October 31, 2007, the tax character of distributions paid of $53,996,821 was ordinary income, and $21,390,145 was long-term capital gain. On July 13, 2006, the Financial Accounting Standards Board ("FASB") released FASB Interpretation No. 48, "Accounting for Uncertainty in Income Taxes" ("FIN 48"). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Fund's tax returns to determine whether the tax positions are "more-likely-than-not" of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense in the current year. Management has evaluated the implication of FIN 48 and has determined it does not have any impact on the financial statements as of April 30, 2008. Tax years for 2004, 2005, 2006 and 2007 are still subject to examination by major jurisdictions. Note 5 - INVESTMENTS IN SECURITIES AND SWAPS: For the six months ended April 30, 2008, purchases and sales of investments, other than short-term securities, were $277,108,542 and $320,864,273, respectively. 12 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund | NOTES TO FINANCIAL STATEMENTS (unaudited) continued The Fund entered into total return and credit default swap agreements during the six months ended April 30, 2008 to generate additional income. As of April 30, 2008, the Fund had swaps with a total notional value of $41,404,435 outstanding. Details of the swap agreements outstanding as of April 30, 2008 were as follows: TOTAL RETURN SWAP AGREEMENTS NOTIONAL PAYING UNREALIZED TERMINATION AMOUNT FLOATING APPRECIATION/ COUNTERPARTY UNDERLYING TERM LOANS DATE (000) RATE (DEPRECIATION) ------------------------------------------------------------------------------------------------------------------------------------ JPMorgan Chase & Co. Bausch & Lomb, US LIBOR+3.25%, due 04/26/15 07/01/2008 $3,377 3.43% $ (96,250) JPMorgan Chase & Co. CCS International 07/01/2008 5,220 (a) -- -- JPMorgan Chase & Co. CVC Holdings, Inc., US LIBOR+1.75%, due 11/11/14 07/01/2008 2,358 3.43% (62,125) JPMorgan Chase & Co. Celanese Holdings LLC, US LIBOR+1.75%, due 04/06/11 07/01/2008 1,911 3.43% (45,664) JPMorgan Chase & Co. Community Health Systems, Inc., US LIBOR+2.25%, due 07/25/14 07/01/2008 2,198 3.43% (78,902) JPMorgan Chase & Co. Energy Future Holdings, US LIBOR+3.50%, due 10/10/14 07/01/2008 5,226 3.43% (162,785) JPMorgan Chase & Co. General Motors Corp., US LIBOR+2.75%, due 11/29/13 07/01/2008 1,846 3.43% (81,476) JPMorgan Chase & Co. Hertz Corp., US LIBOR+1.75%, due 12/21/12 07/01/2008 2,375 3.43% (94,847) JPMorgan Chase & Co. Idearc, Inc., US LIBOR+2.00%, due 11/17/14 07/01/2008 1,003 3.43% (180,688) JPMorgan Chase & Co. Mac Gen LLC, US LIBOR+2.25%, due 02/22/12 07/01/2008 6,449 3.43% 20,750 JPMorgan Chase & Co. Mac Gen LLC, US LIBOR+7.50%, due 02/15/15 07/01/2008 3,095 3.43% 31,008 JPMorgan Chase & Co. Virgin Media Inc., GP LIBOR+1.75%, due 01/17/25 07/01/2008 4,630 5.88% 121,771 ------------------------------------------------------------------------------------------------------------------------------------ $(629,208) ------------------------------------------------------------------------------------------------------------------------------------ CREDIT DEFAULT SWAP AGREEMENT NOTIONAL PAYING UNREALIZED BUY/SELL TERMINATION AMOUNT FLOATING APPRECIATION/ COUNTERPARTY UNDERLYING TERM LOANS PROTECTION DATE (000) RATE (DEPRECIATION) ------------------------------------------------------------------------------------------------------------------------ JPMorgan Chase & Co. AMR Corp. Sell 03/20/2013 1,716 8.80% $ (533,558) ------------------------------------------------------------------------------------------------------------------------ $(1,162,766) ------------------------------------------------------------------------------------------------------------------------ (a) Not settled as of April 30, 2008. For each swap noted, the Fund pays a floating rate and receives the total return of the underlying asset. The market value of the swaps outstanding reflects the current receivable and payable for the floating rate and fixed rate, which may have different payment dates. Note 6 - DERIVATIVES: At April 30, 2008, the following forward exchange currency contracts were outstanding: SHORT CONTRACTS LOCAL CURRENCY VALUE UNREALIZED APPRECIATION (US$) ------------------------------------------------------------------------------------------------- Canadian Dollar, 526,087 expiring 5/02/08 $ 522,387 $ 10,285 ------------------------------------------------------------------------------------------------- Note 7 - CAPITAL: COMMON SHARES The Fund has an unlimited amount of common shares, $0.001 par value, authorized and 23,531,322 issued and outstanding. In connection with the Fund's dividend reinvestment plan, the Fund issued 0 shares during the six months ended April 30, 2008, and 141,118 shares during the year ended October 31, 2007. At April 30, 2008, Advent Capital Management LLC, the Fund's investment adviser, owned 6,583 shares of the Fund. PREFERRED SHARES On June 19, 2003, the Fund's Board of Trustees authorized the issuance of Auction Market Preferred Shares ("AMPS"), as part of the Fund's leverage strategy. AMPS issued by the Fund have seniority over the common shares. On July 24, 2003, the Fund issued 2,150 shares of Series M7, 2,150 shares of Series T28, 2,150 shares of Series W7 and 2,150 shares of Series TH28, each with a liquidation value of $25,000 per share plus accrued dividends. In addition, on March 16, 2004, the Fund issued 1,200 shares of Series F7 and 1,200 shares of Series W28 each with a liquidation value of $25,000 per share plus accrued dividends. Semiannual Report | April 30, 2008 | l3 AVK | Advent Claymore Convertible Securities and Income Fund | NOTES TO FINANCIAL STATEMENTS (unaudited) continued Dividends are accumulated daily at a rate set through an auction process. Beginning February 13, 2008, the auction process resulted in a failed auction. Provisions in the offering documents of the Fund's AMPS provide a mechanism to set a maximum rate in the event of a failed auction, and thus, investors in the Fund's AMPS will continue to be entitled to receive payment for holding these AMPS. This maximum rate is determined based upon a multiple of or a spread to LIBOR, whichever is greater. Distributions of net realized capital gains, if any, are made annually. For the six months ended April 30, 2008, the annualized dividend rates ranged from: HIGH LOW AT APRIL 30, 2008 ------------------------------------------------------------------------------- Series M7 5.75% 3.85% 4.01% Series T28 6.19% 3.97% 3.97% Series W7 5.60% 3.94% 4.08% Series W28 5.65% 3.93% 4.15% Series TH28 5.75% 3.95% 4.14% Series F7 5.60% 4.00% 4.04% The Fund is subject to certain limitations and restrictions while Preferred Shares are outstanding. Failure to comply with these limitations and restrictions could preclude the Fund from declaring any dividends or distributions to common shareholders or repurchasing common shares and/or could trigger the mandatory redemption of Preferred Shares at their liquidation value. Preferred Shares, which are entitled to one vote per share, generally vote with the common stock but vote separately as a class to elect two Trustees and on any matters affecting the rights of the Preferred Shares. Note 8 - INDEMNIFICATIONS: In the normal course of business, the Fund enters into contracts that contain a variety of representations, which provide general indemnifications. The Fund's maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against the Fund that have not yet occurred. However, the Fund expects the risk of loss to be remote. Note 9 - SUBSEQUENT EVENT: Subsequent to April 30, 2008, the Fund declared on May 1, 2008 and June 2, 2008, monthly dividends to common shareholders of $0.1718 per common share. These dividends are payable on May 30, 2008 and June 30, 2008 to shareholders of record on May 15, 2008 and June 13, 2008 respectively. On March 11, 2008, the Board of Trustees approved Claymore Advisors, LLC to replace BNY as the Fund Administration Agent effective May 1, 2008. Note 10 - ACCOUNTING PRONOUNCEMENTS: In September 2006, the FASB released Statement of Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"). This standard clarifies the definition of fair value for financial reporting, establishes a framework for measuring fair value and requires additional disclosures about the use of fair value measurements. FAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. As of April 30, 2008, the Fund does not believe the adoption of FAS 157 will impact the amounts reported in the financial statements, however, additional disclosure will be required about the inputs used to develop measurements of fair value and the effect of certain of the measurements reported in the statement of operations for a fiscal period. In March 2008, the FASB issued SFAS No. 161, "Disclosures about Derivative Instruments and Hedging Activities." This standard is intended to enhance financial statement disclosures for derivative instruments and hedging activities and enable investors to understand: a) how and why a fund uses derivative instruments, b) how derivatives instruments and related hedge fund items are accounted for, and c) how derivative instruments and related hedge items affect a fund's financial position, results of operations and cash flows. SFAS No. 161 is effective for financial statements issued for fiscal years and interim periods beginning after November 15, 2008. As of April 30, 2008, management does not believe the adoption of SFAS No. 161 will impact the financial statement amounts; however, additional footnote disclosures may be required about the use of derivative instruments and hedging items. l4 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Supplemental INFORMATION | (unaudited) FEDERAL INCOME TAX INFORMATION In January 2009, you will be advised on IRS Form 1099 DIV or substitute 1099 DIV as to the federal tax status of the distributions received by you in the calendar year 2008. TRUSTEES The Trustees of the Advent Claymore Convertible Securities and Income Fund and their principal occupations during the past five years: NUMBER OF FUNDS IN FUND NAME, ADDRESS, YEAR TERM OF OFFICE* PRINCIPAL OCCUPATIONS DURING COMPLEX** OTHER OF BIRTH AND POSITION(S) AND LENGTH OF THE PAST FIVE YEARS AND OVERSEEN BY DIRECTORSHIPS HELD WITH REGISTRANT TIME SERVED OTHER AFFILIATIONS TRUSTEE HELD BY TRUSTEE ------------------------------------------------------------------------------------------------------------------------------------ INDEPENDENT TRUSTEES: ------------------------------------------------------------------------------------------------------------------------------------ Daniel Black+ Since 2005 Partner, the Wicks Group of Cos., LLC (2003-present). 3 Director of Year of birth: 1960 Formerly, Managing Director and Co-head of the Merchant Penn Foster Trustee Banking Group at BNY Capital Markets, a division of The Education Bank of New York Co., Inc. (1998-2003). Group, Inc. ------------------------------------------------------------------------------------------------------------------------------------ Randall C. Barnes++ Since 2005 Investor (2001-present). Formerly, Senior Vice 41 None. Year of birth: 1951 President, Treasurer (1993-1997), President, Pizza Hut Trustee International (1991-1993) and Senior Vice President, Strategic Planning and New Business Development (1987-1990) of PepsiCo, Inc. (1987-1997). ------------------------------------------------------------------------------------------------------------------------------------ Derek Medina+ Since 2003 Senior Vice President, Business Affairs at ABC News 3 Director of Year of birth: 1966 (2008-present). Vice President, Business Affairs and Young Scholar's Trustee News Planning at ABC News (2003-2008). Formerly, Institute. Executive Director, Office of the President at ABC News (2000-2003). Former Associate at Cleary Gottlieb Steen & Hamilton (law firm) (1995-1998). Former associate in Corporate Finance at J.P. Morgan/Morgan Guaranty (1988-1990). ------------------------------------------------------------------------------------------------------------------------------------ Ronald A. Nyberg++ Since 2003 Partner of Nyberg & Cassioppi, LLC., a law firm 44 None. Year of birth: 1953 specializing in corporate law, estate planning and Trustee business transactions (2000-present). Formerly, Executive Vice President, General Counsel and Corporate Secretary of Van Kampen Investments (1982-1999). ------------------------------------------------------------------------------------------------------------------------------------ Gerald L. Seizert, CFP+ Since 2003 Chief Executive Officer of Seizert Capital Partners, 3 Former Year of birth: 1952 LLC, where he directs the equity disciplines of the Director Trustee firm and serves as a co-manager of the firmhedge fund, of Loomis, Proper Associates, LLC (2000-present). Formerly, Sayles and Co-Chief Executive (1998-1999) and a Managing Partner Co., L.P. and Chief Investment Officer-Equities of Munder Capital Management, LLC (1995-1999). Former Vice President and Portfolio Manager of Loomis, Sayles & Co., L.P. (asset manager) (1984-1995). Former Vice President and Portfolio Manager at First of America Bank (1978-1984). ------------------------------------------------------------------------------------------------------------------------------------ Michael A. Smart+ Since 2003 Managing Partner, Cordova, Smart & Williams, LLC, 3 Director, Year of birth: 1960 Advisor First Atlantic Capital Ltd., (2001-present). Country Pure Trustee Formerly, a Managing Director in Investment Banking-The Foods. Private Equity Group (1995-2001) and a Vice President Chairman, in Investment Banking-Corporate Finance (1992-1995) at Board of Merrill Lynch & Co. Founding Partner of The Carpediem Directors, Group, (1991-1992). Associate at Dillon, Read and Co. Berkshire (investment bank) (1988-1990). Blanket, Inc. President and Chairman, Board of Directors, Sqwincher Holdings. Director, Sprint Industrial Holdings. Co-chairman, Board of Directors, H2O Plus. ------------------------------------------------------------------------------------------------------------------------------------ INTERESTED TRUSTEES: ------------------------------------------------------------------------------------------------------------------------------------ Tracy V. Maitland+0 Since 2003 President of Advent Capital Management, LLC, which he 3 None. Year of birth: 1960 founded in 1995. Prior to June, 2001, President of Trustee, President and Advent Capital Management, a division of Utendahl Chief Executive Officer Capital. ------------------------------------------------------------------------------------------------------------------------------------ Nicholas Dalmaso++00 Since 2003 Formerly, Senior Managing Director and Chief 44 None. Year of Birth: 1965 Administrative Officer (2007-2008) and General Trustee Counsel (2001-2007) of Claymore Advisors, LLC and Claymore Securities, Inc. Formerly, Assistant General Counsel, John Nuveen and Company Inc. (1999-2000). Former Vice President and Associate General Counsel of Van Kampen Investments, Inc. (1992-1999). ------------------------------------------------------------------------------------------------------------------------------------ + Address for all Trustees noted: 1065 Avenue of the Americas, 31st Floor, New York, NY 10018. ++ Address for all Trustees noted: 2455 Corporate West Drive, Lisle, IL 60532. * After a Trustee's initial term, each Trustee is expected to serve a three-year term concurrent with the class of Trustees for which he serves: - Messrs. Seizert, Medina and Barnes, as Class I Trustees, are expected to stand for re-election at the Fund's 2010 annual meeting of shareholders. - Messrs. Smart, Nyberg and Black, as Class II Trustees, are expected to stand for re-election at the Fund's 2008 annual meeting of shareholders. - Messrs. Maitland and Dalmaso, as a Class III Trustees, are expected to stand for re-election at the Fund's 2009 annual meeting of shareholders. ** The Claymore Fund Complex consists of U.S. registered investment companies advised or serviced by Claymore Advisors, LLC or Claymore Securities, Inc. The Claymore Fund Complex is overseen by multiple Boards of Trustees. 0 Mr. Maitland is an "interested person" (as defined in section 2(a)(19) of the 1940 Act) of the Fund because of his position as an officer of Advent Capital Management, LLC, the Fund's Advisor. 00 Mr. Dalmaso is an "interested person" (as defined in section 2(a)(19) of the 1940 Act) of the Fund as a result of his position as an officer (through May 13, 2008) of and his equity ownership in the Fund's Servicing Agent and certain of its affiliates. Semiannual Report | April 30, 2008 | 15 AVK | Advent Claymore Convertible Securities and Income Fund | SUPPLEMENTAL INFORMATION (unaudited) continued OFFICERS The Officers of the Advent Claymore Convertible Securities and Income Fund and their principal occupations during the past five years: NAME, ADDRESS*, YEAR OF BIRTH AND TERM OF OFFICE** AND PRINCIPAL OCCUPATION DURING THE PAST FIVE YEARS POSITION(S) HELD WITH REGISTRANT LENGTH OF TIME SERVED AND OTHER AFFILIATIONS ------------------------------------------------------------------------------------------------------------------------------------ OFFICERS: ------------------------------------------------------------------------------------------------------------------------------------ F. Barry Nelson Since 2003 Co-Portfolio Manager at Advent Capital Management, LLC (June 2001- at Year of birth: 1943 present). Prior to June 2001, Mr. Nelson held the same position Advent Vice President and Capital Management, a division of Utendahl Capital. Assistant Secretary ------------------------------------------------------------------------------------------------------------------------------------ Robert White Since 2005 Chief Financial Officer, Advent Capital Management, LLC (July 2005- Year of birth: 1965 present). Previously, Vice President, Client Service Manager, Goldman Treasurer and Sachs Prime Brokerage (1997-2005). Chief Financial Officer ------------------------------------------------------------------------------------------------------------------------------------ Rodd Baxter Since 2003 General Counsel, Advent Capital Management, LLC (2002-present). Year of birth: 1950 Formerly, Director and Senior Counsel, SG Cowen Securities Corp. Secretary and (1998-2002). Chief Compliance Officer ------------------------------------------------------------------------------------------------------------------------------------ * Address for all Officers: 1065 Avenue of the Americas, 31st Floor, New York, NY 10018 ** Officers serve at the pleasure of the Board of Trustees and until his or her successor is appointed and qualified or until his or her earlier resignation or removal. l6 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Dividend Reinvestment PLAN | (unaudited) Unless the registered owner of common shares elects to receive cash by contacting the Plan Administrator, all dividends declared on common shares of the Fund will be automatically reinvested by The Bank of New York Mellon (the "Plan Administrator"), Administrator for shareholders in the Fund's Dividend Reinvestment Plan (the "Plan"), in additional common shares of the Fund. Participation in the Plan is completely voluntary and may be terminated or resumed at any time without penalty by notice if received and processed by the Plan Administrator prior to the dividend record date; otherwise such termination or resumption will be effective with respect to any subsequently declared dividend or other distribution. Some brokers may automatically elect to receive cash on your behalf and may re-invest that cash in additional common shares of the Fund for you. If you wish for all dividends declared on your common shares of the Fund to be automatically reinvested pursuant to the Plan, please contact your broker. The Plan Administrator will open an account for each common shareholder under the Plan in the same name in which such common shareholder's common shares are registered. Whenever the Fund declares a dividend or other distribution (together, a "Dividend") payable in cash, non-participants in the Plan will receive cash and participants in the Plan will receive the equivalent in common shares. The common shares will be acquired by the Plan Administrator for the participants' accounts, depending upon the circumstances described below, either (i) through receipt of additional unissued but authorized common shares from the Fund ("Newly Issued Common Shares") or (ii) by purchase of outstanding common shares on the open market ("Open-Market Purchases") on the New York Stock Exchange or elsewhere. If, on the payment date for any Dividend, the closing market price plus estimated brokerage commission per common share is equal to or greater than the net asset value per common share, the Plan Administrator will invest the Dividend amount in Newly Issued Common Shares on behalf of the participants. The number of Newly Issued Common Shares to be credited to each participant's account will be determined by dividing the dollar amount of the Dividend by the net asset value per common share on the payment date; provided that, if the net asset value is less than or equal to 95% of the closing market value on the payment date, the dollar amount of the Dividend will be divided by 95% of the closing market price per common share on the payment date. If, on the payment date for any Dividend, the net asset value per common share is greater than the closing market value plus estimated brokerage commission, the Plan Administrator will invest the Dividend amount in common shares acquired on behalf of the participants in Open-Market Purchases. If, before the Plan Administrator has completed its Open-Market Purchases, the market price per common share exceeds the net asset value per common share, the average per common share purchase price paid by the Plan Administrator may exceed the net asset value of the common shares, resulting in the acquisition of fewer common shares than if the Dividend had been paid in Newly Issued Common Shares on the Dividend payment date. Because of the foregoing difficulty with respect to Open-Market Purchases, the Plan provides that if the Plan Administrator is unable to invest the full Dividend amount in Open-Market Purchases during the purchase period or if the market discount shifts to a market premium during the purchase period, the Plan Administrator may cease making Open-Market Purchases and may invest the uninvested portion of the Dividend amount in Newly Issued Common Shares at net asset value per common share at the close of business on the Last Purchase Date provided that, if the net asset value is less than or equal to 95% of the then current market price per common share; the dollar amount of the Dividend will be divided by 95% of the market price on the payment date. The Plan Administrator maintains all shareholders' accounts in the Plan and furnishes written confirmation of all transactions in the accounts, including information needed by shareholders for tax records. Common shares in the account of each Plan participant will be held by the Plan Administrator on behalf of the Plan participant, and each shareholder proxy will include those shares purchased or received pursuant to the Plan. The Plan Administrator will forward all proxy solicitation materials to participants and vote proxies for shares held under the Plan in accordance with the instruction of the participants. There will be no brokerage charges with respect to common shares issued directly by the Fund. However, each participant will pay a pro rata share of brokerage commission incurred in connection with Open-Market Purchases. The automatic reinvestment of Dividends will not relieve participants of any Federal, state or local income tax that may be payable (or required to be withheld) on such Dividends. The Fund reserves the right to amend or terminate the Plan. There is no direct service charge to participants with regard to purchases in the Plan; however, the Fund reserves the right to amend the Plan to include a service charge payable by the participants. All correspondence or questions concerning the Plan should be directed to the Plan Administrator, The Bank of New York Mellon, Attention: Stock Transfer Department, 101 Barclay 11E, New York, NY 10286, Phone Number: (866) 488-3559. Semiannual Report | April 30, 2008 | 17 AVK | Advent Claymore Convertible Securities and Income Fund Investment Management AGREEMENT CONTRACT RE-APPROVAL | (unaudited) Section 15(c) of the Investment Company Act of 1940, as amended (the "1940 Act") contemplates that the Board of Trustees (the "Board") of Advent Claymore Convertible Securities and Income Fund (the "Fund"), including a majority of the Trustees who have no direct or indirect interest in the investment management agreement and are not "interested persons" of the Fund, as defined in the 1940 Act (the "Independent Trustees"), are required to annually review and re-approve the terms of the Fund's existing investment advisory agreement and approve any newly proposed terms therein. In this regard, the Board reviewed and re-approved, during the most recent six month period covered by this report, the investment management agreement (the "Management Agreement") with Advent Capital Management, LLC ("Advent") for the Fund. More specifically, at a meeting held on March 11, 2008, the Board, including the Independent Trustees advised by their independent legal counsel, considered the factors and reached the conclusions described below relating to the selection of Advent and the re-approval of the Advisory Agreement. NATURE, EXTENT AND QUALITY OF SERVICES The Board received and considered various data and information regarding the nature, extent and quality of services provided to the Fund by Advent under the Investment Management Agreement. The Board reviewed and analyzed the responses of Advent to a detailed series of requests submitted by the Independent Trustees' independent legal counsel on behalf of such Trustees which included, among other things, information about the background and experience of the senior management and the expertise of, and amount of attention devoted to the Funds by, personnel of Advent. In this regard, the Board specifically reviewed the qualifications, background and responsibilities of the officers primarily responsible for day-to-day portfolio management services for the Fund. The Board evaluated the ability of Advent, including its resources, reputation and other attributes, to attract and retain highly qualified investment professionals, including research, advisory and supervisory personnel. In this connection, the Board considered information regarding the compensation structures for the personnel of Advent involved in the management of the Fund. Based on the above factors, together with those referenced below, the Board concluded that it was satisfied with the nature, extent and quality of the investment management services provided to the Fund by Advent. FUND PERFORMANCE AND EXPENSES The Board considered the most recent one year, three-month and year-to-date performance results for the Fund. They also considered these results in comparison to the performance results of a group of other closed-end funds that were determined to be the most similar to the Fund (a "Peer Group"). The Board received and considered statistical information regarding the Fund's total expense ratio (based on net assets applicable to common shares) and its various components. It also considered comparisons of these expenses to the expense information for the Fund's Peer Group. Based on the above-referenced considerations and other factors, the Board concluded that the overall performance and expense results supported the re-approval of the Investment Management Agreement. INVESTMENT MANAGEMENT FEE RATES The Board reviewed and considered the contractual investment management fee rate for the Fund ("Management Agreement Rate") payable by the Fund to Advent for investment management services. In addition, the Board reviewed and considered all fee waiver arrangements applicable to the Management Agreement Rate and considered the Management Agreement Rate after taking all applicable waivers into account (the "Net Management Rate"). Additionally, the Board received and considered information comparing the Management Agreement Rate (on a stand-alone basis exclusive of service fee/administrative fee rates) with those of the other funds in the Peer Group. The Board concluded that the fees were fair and equitable based on relevant factors, including the Fund's performance results and total expenses ranking relative to its Peer Group. PROFITABILITY The Board received and considered an estimated profitability analysis of Advent based on the Net Management Rate. The Board concluded that, in light of the costs of providing investment management services to the Fund, the profits and other ancillary benefits that Advent received with regard to providing these services to the Fund were not unreasonable. ECONOMIES OF SCALE The Board received and considered information regarding whether there have been economies of scale with respect to the management of the Fund, whether the Fund has appropriately benefited from any economies of scale, and whether there is potential for realization of any further economies of scale. The Board concluded that the opportunity to benefit from economies of scale was diminished in the context of closed-end funds. INFORMATION ABOUT SERVICES TO OTHER CLIENTS The Board also received and considered information about the nature, extent and quality of services and fee rates offered by Advent to its other clients. After considering the above-described factors and based on the deliberations and its evaluation of the information provided to them, the Board concluded that re-approval of the Investment Management Agreement was in the best interest of the Fund and its shareholders. Accordingly, the Board unanimously re-approved the Management Agreement. 18 | Semiannual Report | April 30, 2008 AVK | Advent Claymore Convertible Securities and Income Fund Fund INFORMATION | BOARD OF TRUSTEES Randall C. Barnes Daniel Black Nicholas Dalmaso* Tracy V. Maitland** Chairman Derek Medina Ronald A. Nyberg Gerald L. Seizert Michael A. Smart * Trustee is an "interested person" of the Fund as defined in the Investment Company Act of 1940, as amended, as a result of his position as an officer (through May 13, 2008) of and his equity ownership in the Servicing Agent and certain of its affiliates. ** Trustee is an "interested person" of the Fund as defined in the Investment Company Act of 1940, as amended. OFFICERS Tracy V. Maitland President and Chief Executive Officer F. Barry Nelson Vice President and Assistant Secretary Robert White Treasurer and Chief Financial Officer Rodd Baxter Secretary and Chief Compliance Officer INVESTMENT MANAGER Advent Capital Management, LLC New York, New York SERVICING AGENT Claymore Securities, Inc. Lisle, Illinois ADMINISTRATOR (THROUGH APRIL 30, 2008), CUSTODIAN AND TRANSFER AGENT The Bank of New York Mellon New York, New York ADMINISTRATOR (EFFECTIVE MAY 1, 2008) Claymore Advisors, LLC Lisle, Illinois PREFERRED STOCK- DIVIDEND PAYING AGENT The Bank of New York Mellon New York, New York LEGAL COUNSEL Skadden, Arps, Slate, Meagher & Flom LLP New York, New York INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM PricewaterhouseCoopers LLP New York, New York PRIVACY PRINCIPLES OF THE FUND The Fund is committed to maintaining the privacy of its shareholders and to safeguarding their non-public personal information. The following information is provided to help you understand what personal information the Fund collects, how the Fund protects that information and why, in certain cases, the Fund may share information with select other parties. Generally, the Fund does not receive any non-public personal information relating to its shareholders, although certain non-public personal information of its shareholders may become available to the Fund. The Fund does not disclose any non-public personal information about its shareholders or former shareholders to anyone, except as permitted by law or as is necessary in order to service shareholder accounts (for example, to a transfer agent or third party administrator). The Fund restricts access to non-public personal information about its shareholders to employees of the Fund's investment advisor and its affiliates with a legitimate business need for the information. The Fund maintains physical, electronic and procedural safeguards designed to protect the non-public personal information of its shareholders. QUESTIONS CONCERNING YOUR SHARES OF ADVENT CLAYMORE CONVERTIBLE SECURITIES AND INCOME FUND? o If your shares are held in a Brokerage Account, contact your Broker. o If you have physical possession of your shares in certificate form, contact the Fund's Custodian and Transfer Agent: The Bank of New York Mellon, 101 Barclay 11E, New York, NY 10286; (866) 488-3559. This report is sent to shareholders of Advent Claymore Convertible Securities and Income Fund for their information. It is not a Prospectus, circular or representation intended for use in the purchase or sale of shares of the Fund or of any securities mentioned in this report. A description of the Fund's proxy voting policies and procedures related to portfolio securities is available without charge, upon request, by calling the Fund at (866) 274-2227. Information regarding how the Fund voted proxies for portfolio securities, if applicable, during the most recent 12-month period ended June 30, is also available, without charge and upon request by calling the Fund at (866) 274-2227 or by accessing the Fund's Form N-PX on the U.S. Securities & Exchange Commission's ("SEC") website at http://www.sec.gov. The Fund files its complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. The Fund's Form N-Q is available on the SEC website at http://www.sec.gov. The Fund's Form N-Q may also be viewed and copied at the SEC's Public Reference Room in Washington, DC; information on the operation of the Public Reference Room may be obtained by calling (800) SEC-0330 or at http://www.sec.gov. In October 2007, the Fund submitted a CEO annual certification to the New York Stock Exchange ("NYSE") in which the Fund's principal executive officer certified that he was not aware, as of the date of the certification, of any violation by the Fund of the NYSE's Corporate Governance listing standards. In addition, as required by Section 302 of the Sarbanes-Oxley Act of 2002 and related SEC rules, the Fund's principal executive and principal financial officers have made quarterly certifications, included in filings with the SEC on Forms N-CSR and N-Q, relating to, among other things, the Fund's disclosure controls and procedures and internal control over financial reporting. Semiannual Report | April 30, 2008 | 19 ADVENT CAPITAL MANAGEMENT, LLC 1065 Avenue of the Americas New York, New York 10018 AVK LISTED NYSE(R) AVK-SAR-408 ITEM 2. CODE OF ETHICS. Not applicable for a semi-annual reporting period. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable for a semi-annual reporting period. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Not applicable for a semi-annual reporting period. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable for a semi-annual reporting period. ITEM 6. SCHEDULE OF INVESTMENTS. The Schedule of Investments is included as part of Item 1. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable for a semi-annual reporting period. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (a) Not applicable for a semi-annual reporting period. (b) There has been no change, as of the date of this filing, in the Portfolio Manager identified in response to paragraph (a)(1) of this Item in the registrant's most recent annual report on Form N-CSR. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. None. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. The registrant has not made any material changes to the procedures by which shareholders may recommend nominees to the registrant's Board of Trustees. ITEM 11. CONTROLS AND PROCEDURES. (a) The registrant's principal executive officer and principal financial officer have evaluated the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) as of a date within 90 days of this filing and have concluded based on such evaluation, that the registrant's disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) that occurred during the registrant's second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 12. EXHIBITS. (a)(1) Not applicable. (a)(2) Certification of principal executive officer and principal financial officer pursuant to Rule 30a-2(a) of the Investment Company Act of 1940. (a)(3) Not Applicable. (b) Certification of principal executive officer and principal financial officer pursuant to Rule 30a-2(b) of the Investment Company Act of 1940. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Advent Claymore Convertible Securities and Income Fund By: /s/ Tracy V. Maitland ------------------------------------------------------------------------- Name: Tracy V. Maitland Title: President and Chief Executive Officer Date: July 3, 2008 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Tracy V. Maitland ------------------------------------------------------------------------- Name: Tracy V. Maitland Title: President and Chief Executive Officer Date: July 3, 2008 By: /s/ Robert White ------------------------------------------------------------------------- Name: Robert White Title: Treasurer and Chief Financial Officer Date: July 3, 2008