Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Robinhood Markets Inc (HOOD), where a total volume of 110,839 contracts has been traded thus far today, a contract volume which is representative of approximately 11.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 54.9% of HOOD's average daily trading volume over the past month, of 20.2 million shares..