Notable Monday Option Activity: FGEN, MGLN, AMD

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in FibroGen Inc (FGEN), where a total volume of 6,993 contracts has been traded thus far today, a contract volume which is representative of approximately 699,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 97.3% of FGEN's average daily trading volume over the past month, of 718,565 shares..