Noteworthy Wednesday Option Activity: SSTK, AMBA, PRCT

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Shutterstock Inc (SSTK), where a total volume of 3,202 contracts has been traded thus far today, a contract volume which is representative of approximately 320,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 54.6% of SSTK's average daily trading volume over the past month, of 586,310 shares..