Noteworthy Friday Option Activity: BID, GMT, WLB

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Sotheby's (BID), where a total of 6,785 contracts have traded so far, representing approximately 678,500 underlying shares. That amounts to about 57.7% of BID's average daily trading volume over the past month of 1.2 million shares..