Noteworthy Thursday Option Activity: SIG, GOOG, HUM

Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Signet Jewelers Ltd (SIG), where a total of 18,284 contracts have traded so far, representing approximately 1.8 million underlying shares. That amounts to about 111.9% of SIG's average daily trading volume over the past month of 1.6 million shares..