Notable Tuesday Option Activity: PRTA, TR, ORBC

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 2,032 contracts have traded so far, representing approximately 203,200 underlying shares. That amounts to about 96.8% of PRTA's average daily trading volume over the past month of 209,985 shares..