Noteworthy Monday Option Activity: MKL, LULU, DSW

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Markel Corp (MKL), where a total volume of 365 contracts has been traded thus far today, a contract volume which is representative of approximately 36,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 86.1% of MKL's average daily trading volume over the past month, of 42,405 shares..