Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Galena Biopharma Inc (GALE), where a total of 10,365 contracts have traded so far, representing approximately 1.0 million underlying shares. That amounts to about 66.9% of GALE's average daily trading volume over the past month of 1.5 million shares. Particularly high volume was seen for the $1.50 strike call option expiring January 20, 2017, with 9,932 contracts trading so far today, representing approximately 993,200 underlying shares of GALE. Below is a chart showing GALE's trailing twelve month trading history, with the $1.50 strike highlighted in orange:

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Today's Most Active Call & Put Options of the S&P 500 »

West Corp. ( WSTC) options are showing a volume of 2,100 contracts thus far today. That number of contracts represents approximately 210,000 underlying shares, working out to a sizeable 66.3% of WSTC's average daily trading volume over the past month, of 316,850 shares. Especially high volume was seen for the $17.50 strike call option expiring February 19, 2016, with 750 contracts trading so far today, representing approximately 75,000 underlying shares of WSTC. Below is a chart showing WSTC's trailing twelve month trading history, with the $17.50 strike highlighted in orange:

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And SeaWorld Entertainment Inc. ( SEAS) options are showing a volume of 6,913 contracts thus far today. That number of contracts represents approximately 691,300 underlying shares, working out to a sizeable 65.5% of SEAS's average daily trading volume over the past month, of 1.1 million shares. Especially high volume was seen for the $19 strike put option expiring March 18, 2016, with 2,139 contracts trading so far today, representing approximately 213,900 underlying shares of SEAS. Below is a chart showing SEAS's trailing twelve month trading history, with the $19 strike highlighted in orange:

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For the various different available expirations for GALE options, WSTC options, or SEAS options, visit StockOptionsChannel.com.