Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Colfax Corp (CFX - Get Report), where a total volume of 11,021 contracts has been traded thus far today, a contract volume which is representative of approximately 1.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 185.8% of CFX's average daily trading volume over the past month, of 593,150 shares. Especially high volume was seen for the $40 strike call option expiring November 17, 2017, with 6,511 contracts trading so far today, representing approximately 651,100 underlying shares of CFX. Below is a chart showing CFX's trailing twelve month trading history, with the $40 strike highlighted in orange:

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Health Insurance Innovations, Inc ( HIIQ) saw options trading volume of 10,957 contracts, representing approximately 1.1 million underlying shares or approximately 172% of HIIQ's average daily trading volume over the past month, of 636,870 shares. Especially high volume was seen for the $30 strike put option expiring September 15, 2017, with 3,140 contracts trading so far today, representing approximately 314,000 underlying shares of HIIQ. Below is a chart showing HIIQ's trailing twelve month trading history, with the $30 strike highlighted in orange:

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And Deckers Outdoor Corp. ( DECK) saw options trading volume of 3,674 contracts, representing approximately 367,400 underlying shares or approximately 97% of DECK's average daily trading volume over the past month, of 378,950 shares. Especially high volume was seen for the $50 strike put option expiring October 20, 2017, with 3,053 contracts trading so far today, representing approximately 305,300 underlying shares of DECK. Below is a chart showing DECK's trailing twelve month trading history, with the $50 strike highlighted in orange:

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For the various different available expirations for CFX options, HIIQ options, or DECK options, visit StockOptionsChannel.com.