Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Safe Bulkers Inc (SB), where a total volume of 5,504 contracts has been traded thus far today, a contract volume which is representative of approximately 550,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 80.4% of SB's average daily trading volume over the past month, of 684,810 shares..