Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Akero Therapeutics Inc (AKRO), where a total volume of 7,363 contracts has been traded thus far today, a contract volume which is representative of approximately 736,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 87.6% of AKRO's average daily trading volume over the past month, of 840,595 shares..