Notable Tuesday Option Activity: MSFT, AGN, SWK

Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Microsoft Corporation (NASD: MSFT), where a total volume of 193,751 contracts has been traded thus far today, a contract volume which is representative of approximately 19.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 55.8% of MSFT's average daily trading volume over the past month, of 34.7 million shares. Particul...