Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Universal Display Corp (OLED), where a total volume of 1,647 contracts has been traded thus far today, a contract volume which is representative of approximately 164,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 61% of OLED's average daily trading volume over the past month, of 270,205 shares..