Notable Friday Option Activity: VSAR, EXAS, PRTY

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Versartis Inc (VSAR), where a total volume of 13,527 contracts has been traded thus far today, a contract volume which is representative of approximately 1.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 207.1% of VSAR's average daily trading volume over the past month, of 653,070 shares..