Notable Monday Option Activity: SIG, SPOT, ASTS

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Signet Jewelers Ltd (SIG), where a total volume of 5,631 contracts has been traded thus far today, a contract volume which is representative of approximately 563,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 43.8% of SIG's average daily trading volume over the past month, of 1.3 million shares..