Noteworthy Thursday Option Activity: RTRX, WDAY, PERY
November 19, 2015 at 13:51 PM EST
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Retrophin, Inc. (RTRX), where a total volume of 20,187 contracts has been traded thus far today, a contract volume which is representative of approximately 2.0 million underlying shares (given that every 1 contract represents 100 underlying shares)..