Notable Tuesday Option Activity: LH, MSFT, UA
July 21, 2015 at 14:57 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Laboratory Corporation of America Holdings (LH), where a total volume of 54,359 contracts has been traded thus far today, a contract volume which is representative of approximately 5.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 536.5% of LH's average daily trading volume over the past month, of 1.0 million shares..