Noteworthy Wednesday Option Activity: PX, VMC, ADXS

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Praxair Inc (PX), where a total volume of 5,638 contracts has been traded thus far today, a contract volume which is representative of approximately 563,800 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 43.5% of PX's average daily trading volume over the past month, of 1.3 million shares..