Noteworthy Thursday Option Activity: ARNA, JPM, STAA
April 18, 2019 at 15:20 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Arena Pharmaceuticals Inc (ARNA), where a total volume of 2,195 contracts has been traded thus far today, a contract volume which is representative of approximately 219,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 51.4% of ARNA's average daily trading volume over the past month, of 426,875 shares..