Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Twitter Inc (NYSE: TWTR), where a total of 114,923 contracts have traded so far, representing approximately 11.5 million underlying shares. That amounts to about 48.6% of TWTR’s average daily trading volume over the past month of 23.7 million shares. Particularly high volume was seen for the $18 strike call option expiring July 08, 2016, with 11,531 contracts trading so far today, representing approximately 1.2 million underlying shares of TWTR.