Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Whirlpool Corp (WHR), where a total volume of 2,688 contracts has been traded thus far today, a contract volume which is representative of approximately 268,800 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 54.5% of WHR's average daily trading volume over the past month, of 493,030 shares..