Noteworthy Friday Option Activity: DVA, AZO, HD

Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in DaVita Inc (DVA), where a total of 9,311 contracts have traded so far, representing approximately 931,100 underlying shares. That amounts to about 61.9% of DVA's average daily trading volume over the past month of 1.5 million shares..