Notable Monday Option Activity: RILY, HES, ATMU

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in B. Riley Financial Inc (RILY), where a total volume of 140,711 contracts has been traded thus far today, a contract volume which is representative of approximately 14.1 million underlying shares (given that every 1 contract represents 100 underlying shares)..