Notable Wednesday Option Activity: YELP, EXR, KLXI

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Yelp Inc (YELP), where a total volume of 8,215 contracts has been traded thus far today, a contract volume which is representative of approximately 821,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 50.3% of YELP's average daily trading volume over the past month, of 1.6 million shares..