Noteworthy Tuesday Option Activity: PH, DISCK, CLX

Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Parker Hannifin Corp (PH), where a total volume of 3,442 contracts has been traded thus far today, a contract volume which is representative of approximately 344,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 50.6% of PH's average daily trading volume over the past month, of 680,380 shares..