Notable Friday Option Activity: PRO, AVT, EXPE

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Pros Holdings Inc (PRO), where a total volume of 1,582 contracts has been traded thus far today, a contract volume which is representative of approximately 158,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 74% of PRO's average daily trading volume over the past month, of 213,850 shares..