Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Chevron Corporation (NYSE: CVX), where a total of 37,463 contracts have traded so far, representing approximately 3.7 million underlying shares. That amounts to about 51.1% of CVX’s average daily trading volume over the past month of 7.3 million shares. Especially high volume was seen for the $101 strike put option expiring May 06, 2016, with 3,155 contracts trading so far today, representing approximately 315,500 underlying shares of CVX.