Noteworthy Friday Option Activity: SCTY, FFIV, OPK

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in SolarCity Corp (SCTY), where a total of 21,011 contracts have traded so far, representing approximately 2.1 million underlying shares. That amounts to about 55.2% of SCTY's average daily trading volume over the past month of 3.8 million shares..