Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Acuity Brands Inc (NYSE: AYI), where a total of 2,481 contracts have traded so far, representing approximately 248,100 underlying shares. That amounts to about 84.3% of AYI's average daily trading volume over the past month of 294,440 shares. Particularly high volume was seen for the $270 strike call option expiring October 21, 2016, with 700 contracts trading so far today, representing approximately 70,000 underlying shares of AYI. Below is a chart showing AYI's trailing twelve month trading history, with the $270 strike highlighted in orange:
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