JOHN HANCOCK INVESTORS TRUST

JOHN HANCOCK TAX-ADVANTAGED GLOBAL SHAREHOLDER YIELD FUND

Supplement dated April 26, 2017 to the current Statement of Additional Information, as may be supplemented (the “SAI”)

Effective immediately, the “Determination of Net Asset Value” section of the SAI for each of the investment companies listed above (collectively, the “Fund”) is amended and restated in its entirety as follows:

Determination of Net Asset Value

The Fund’s net asset value per Common Share (“NAV”) is normally determined each business day at the close of regular trading on the NYSE (typically 4:00 p.m. Eastern Time, on each business day that the NYSE is open) by dividing the Fund’s net assets by the number of Common Shares outstanding. In case of emergency or other disruption resulting in the NYSE not opening for trading or the NYSE closing at a time other than the regularly scheduled close, the NAV may be determined as of the regularly scheduled close of the NYSE pursuant to the Fund's Valuation Policies and Procedures. The time at which shares and transactions are priced and until which orders are accepted may vary to the extent permitted by the Securities and Exchange Commission and applicable regulations. On holidays or other days when the NYSE is closed, the NAV is not calculated. Trading of securities that are primarily listed on foreign exchanges may take place on weekends and U.S. business holidays on which the Fund’s NAV is not calculated. Consequently, the Fund’s portfolio securities may trade and the NAV of the Fund’s Common Shares may be significantly affected on days when a shareholder will not be able to purchase or sell the Fund’s Common Shares.

Portfolio securities are valued by various methods that are generally described below. Portfolio securities also may be fair valued by the Fund’s Pricing Committee in certain instances pursuant to procedures established by the Trustees. Equity securities are generally valued at the last sale price or, for certain markets, the official closing price as of the close of the relevant exchange. Securities not traded on a particular day are valued using last available bid prices. A security that is listed or traded on more than one exchange is typically valued at the price on the exchange where the security was acquired or most likely will be sold. In certain instances, the Pricing Committee may determine to value equity securities using prices obtained from another exchange or market if trading on the exchange or market on which prices are typically obtained did not open for trading as scheduled, or if trading closed earlier than scheduled, and trading occurred as normal on another exchange or market. Equity securities traded principally in foreign markets are typically valued using the last sale price or official closing price in the relevant exchange or market, as adjusted by an independent pricing vendor to reflect fair value. On any day a foreign market is closed and the NYSE is open, any foreign securities will typically be valued using the last price or official closing price obtained from the relevant exchange on the prior business day adjusted based on information provided by an independent pricing vendor to reflect fair value. Debt obligations are valued based on evaluated prices provided by an independent pricing vendor. The value of securities denominated in foreign currencies is converted into U.S. dollars at the exchange rate provided by an independent pricing vendor. Exchange-traded options are valued at the mean of the most recent bid and ask prices. Futures contracts are typically valued at settlement prices. If settlement prices are not available, futures contracts may be valued using last traded prices. Shares of open-end investment companies that are not exchange-traded funds (“ETFs”) held by the Fund are valued based on the NAVs of such other investment companies.

Pricing vendors may use matrix pricing or valuation models that utilize certain inputs and assumptions to derive values, including transaction data, credit quality information, general market conditions, news, and other factors and assumptions. Special valuation considerations may apply with respect to the Fund’s “odd-lot” positions, if any, as the Fund may receive different prices when it sells such positions than it would receive for sales of institutional round lot positions. Pricing vendors generally value securities assuming orderly transactions of institutional round lot sizes, but the Fund may hold or transact in such securities in smaller, odd lot sizes. 

The Pricing Committee engages in oversight activities with respect to the Fund’s pricing vendors, which includes, among other things, monitoring significant or unusual price fluctuations above predetermined tolerance levels from the prior day, back-testing of pricing vendor prices against actual trades, conducting periodic due diligence meetings and reviews, and periodically reviewing the inputs, assumptions and methodologies used by these vendors. 

If market quotations, official closing prices, or information furnished by a pricing vendor are not readily available or are otherwise deemed unreliable or not representative of the fair value of such security because of market- or issuer-specific events, a security will be valued at its fair value as determined in good faith by the Trustees. The Trustees are assisted in their responsibility to fair value securities by the Fund’s Pricing Committee, and the actual calculation of a security’s fair value may be made by the Pricing Committee acting pursuant to the procedures established by the Trustees. In certain instances, therefore, the Pricing Committee may determine that a reported valuation does not reflect fair value, based on additional information available or other factors, and may accordingly determine in good faith the fair value of the assets, which may differ from the reported valuation.

Fair value pricing of securities is intended to help ensure that the Fund’s NAV reflects the fair market value of the Fund’s portfolio securities as of the close of regular trading on the NYSE (as opposed to a value that no longer reflects market value as of such close). The use of fair value pricing has the effect of valuing a security based upon the price the Fund might reasonably expect to receive if it sold that security in an orderly transaction between market participants, but does not guarantee that the security can be sold at the fair value price. Further, because of the inherent uncertainty and subjective nature of fair valuation, a fair valuation price may differ significantly from the value that would have been used had a readily available market price for the investment existed and these differences could be material.

Regarding the Fund’s investment in an open-end investment company that is not an ETF, which (as noted above) is valued at such investment company’s NAV, the prospectus for such investment company explains the circumstances and effects of fair value pricing for that investment company.

You should read this Supplement in conjunction with the Statement of Additional Information and retain it for future reference.