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 45,809 contracts have traded so far, representing approximately 4.6 million underlying shares. That amounts to about 81.6% of STX's average daily trading volume over the past month of 5.6 million shares. Particularly high volume was seen for the $24 strike call option expiring August 19, 2016, with 2,591 contracts trading so far today, representing approximately 259,100 underlying shares of STX. Below is a chart showing STX's trailing twelve month trading history, with the $24 strike highlighted in orange:
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