Noteworthy Wednesday Option Activity: COL, CAT, CMG

Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Rockwell Collins Inc (COL), where a total volume of 14,023 contracts has been traded thus far today, a contract volume which is representative of approximately 1.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 79.2% of COL's average daily trading volume over the past month, of 1.8 million shares..