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 2,689 contracts has been traded thus far today, a contract volume which is representative of approximately 268,900 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 88% of OLED's average daily trading volume over the past month, of 305,600 shares..