Noteworthy Tuesday Option Activity: GILD, WDC, BMY
January 16, 2018 at 13:27 PM EST
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Gilead Sciences Inc (GILD), where a total volume of 67,193 contracts has been traded thus far today, a contract volume which is representative of approximately 6.7 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 86.6% of GILD's average daily trading volume over the past month, of 7.8 million shares..