Noteworthy Wednesday Option Activity: MRTX, LE, YEXT

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Mirati Therapeutics Inc (MRTX), where a total volume of 2,633 contracts has been traded thus far today, a contract volume which is representative of approximately 263,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 68.6% of MRTX's average daily trading volume over the past month, of 383,705 shares..