Noteworthy Friday Option Activity: EFX, ROK, AZO
September 15, 2017 at 13:19 PM EDT
Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Equifax Inc (EFX), where a total of 57,805 contracts have traded so far, representing approximately 5.8 million underlying shares. That amounts to about 126.9% of EFX's average daily trading volume over the past month of 4.6 million shares..