Notable Monday Option Activity: SGMO, PENN, ZS

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Sangamo Therapeutics Inc (SGMO), where a total of 16,270 contracts have traded so far, representing approximately 1.6 million underlying shares. That amounts to about 47.9% of SGMO's average daily trading volume over the past month of 3.4 million shares..