Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Marathon Digital Holdings Inc (MARA), where a total volume of 248,916 contracts has been traded thus far today, a contract volume which is representative of approximately 24.9 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 64.4% of MARA's average daily trading volume over the past month, of 38.6 million shares..