Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Super Micro Computer Inc (SMCI), where a total volume of 97,740 contracts has been traded thus far today, a contract volume which is representative of approximately 9.8 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 126.9% of SMCI's average daily trading volume over the past month, of 7.7 million shares..