Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Seagate Technology plc (NASD: STX), where a total of 26,197 contracts have traded so far, representing approximately 2.6 million underlying shares. That amounts to about 77.1% of STX's average daily trading volume over the past month of 3.4 million shares. Particularly high volume was seen for the $36.50 strike call option expiring September 09, 2016, with 6,135 contracts trading so far today, representing approximately 613,500 underlying shares of STX. Below is a chart showing STX's trailing twelve month trading history, with the $36.50 strike highlighted in orange:
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