Noteworthy Thursday Option Activity: CBAY, PTEN, TUP

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in CymaBay Therapeutics Inc (CBAY), where a total of 10,200 contracts have traded so far, representing approximately 1.0 million underlying shares. That amounts to about 86.2% of CBAY's average daily trading volume over the past month of 1.2 million shares..