Notable Tuesday Option Activity: GRA, AMBA, CHGG

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Grace & Co (GRA), where a total of 2,386 contracts have traded so far, representing approximately 238,600 underlying shares. That amounts to about 46.7% of GRA's average daily trading volume over the past month of 510,815 shares..