Noteworthy Thursday Option Activity: RE, CSX, NLSN

Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Everest Re Group Ltd (RE), where a total volume of 2,222 contracts has been traded thus far today, a contract volume which is representative of approximately 222,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 107.5% of RE's average daily trading volume over the past month, of 206,775 shares..