Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Big 5 Sporting Goods Corp (BGFV - Get Report), where a total volume of 1,263 contracts has been traded thus far today, a contract volume which is representative of approximately 126,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 62.5% of BGFV's average daily trading volume over the past month, of 202,020 shares. Particularly high volume was seen for the $10 strike call option expiring January 15, 2016, with 1,255 contracts trading so far today, representing approximately 125,500 underlying shares of BGFV. Below is a chart showing BGFV's trailing twelve month trading history, with the $10 strike highlighted in orange:

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Manitowoc Co., Inc. ( MTW) saw options trading volume of 11,077 contracts, representing approximately 1.1 million underlying shares or approximately 49% of MTW's average daily trading volume over the past month, of 2.3 million shares. Particularly high volume was seen for the $14 strike put option expiring December 18, 2015, with 10,703 contracts trading so far today, representing approximately 1.1 million underlying shares of MTW. Below is a chart showing MTW's trailing twelve month trading history, with the $14 strike highlighted in orange:

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And Cirrus Logic, Inc. ( CRUS) options are showing a volume of 9,017 contracts thus far today. That number of contracts represents approximately 901,700 underlying shares, working out to a sizeable 47.5% of CRUS's average daily trading volume over the past month, of 1.9 million shares. Particularly high volume was seen for the $32.50 strike put option expiring December 18, 2015, with 1,298 contracts trading so far today, representing approximately 129,800 underlying shares of CRUS. Below is a chart showing CRUS's trailing twelve month trading history, with the $32.50 strike highlighted in orange:

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For the various different available expirations for BGFV options, MTW options, or CRUS options, visit StockOptionsChannel.com.