Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Cummins, Inc. (NYSE: CMI), where a total of 4,936 contracts have traded so far, representing approximately 493,600 underlying shares. That amounts to about 44.1% of CMI’s average daily trading volume over the past month of 1.1 million shares. Particularly high volume was seen for the $120 strike put option expiring December 16, 2016, with 1,352 contracts trading so far today, representing approximately 135,200 underlying shares of CMI.