Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Bruker Corp (BRKR), where a total volume of 10,417 contracts has been traded thus far today, a contract volume which is representative of approximately 1.0 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 77.9% of BRKR's average daily trading volume over the past month, of 1.3 million shares..