Noteworthy Thursday Option Activity: KMX, GS, M
December 22, 2016 at 14:58 PM EST
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Carmax Inc. (KMX), where a total volume of 11,219 contracts has been traded thus far today, a contract volume which is representative of approximately 1.1 million underlying shares (given that every 1 contract represents 100 underlying shares)..