Notable Thursday Option Activity: MAN, PEIX, PNRA

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in ManpowerGroup (MAN), where a total volume of 4,966 contracts has been traded thus far today, a contract volume which is representative of approximately 496,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 64.6% of MAN's average daily trading volume over the past month, of 768,275 shares..