Notable Thursday Option Activity: EVLO, ALNY, DDOG

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Evelo Biosciences Inc (EVLO), where a total volume of 1,145 contracts has been traded thus far today, a contract volume which is representative of approximately 114,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 47.9% of EVLO's average daily trading volume over the past month, of 239,170 shares..