Notable Monday Option Activity: PRTA, VHC, EXPE
September 19, 2016 at 16:19 PM EDT
Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Prothena Corp plc (PRTA), where a total of 1,660 contracts have traded so far, representing approximately 166,000 underlying shares. That amounts to about 44.5% of PRTA's average daily trading volume over the past month of 373,030 shares..