Notable Monday Option Activity: STNG, UNH, DFIN

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Scorpio Tankers Inc (STNG), where a total of 5,703 contracts have traded so far, representing approximately 570,300 underlying shares. That amounts to about 60.8% of STNG's average daily trading volume over the past month of 938,335 shares..