Noteworthy Thursday Option Activity: DAL, BIIB, KMX
December 14, 2017 at 13:35 PM EST
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Delta Air Lines Inc (DAL), where a total volume of 41,245 contracts has been traded thus far today, a contract volume which is representative of approximately 4.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 64.3% of DAL's average daily trading volume over the past month, of 6.4 million shares..