Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Chicago Bridge & Iron Co., N.V. (CBI), where a total volume of 12,815 contracts has been traded thus far today, a contract volume which is representative of approximately 1.3 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 58.5% of CBI's average daily trading volume over the past month, of 2.2 million shares. Especially high volume was seen for the $14 strike put option expiring December 08, 2017, with 3,160 contracts trading so far today, representing approximately 316,000 underlying shares of CBI. Below is a chart showing CBI's trailing twelve month trading history, with the $14 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

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

Capital One Financial Corp ( COF) saw options trading volume of 11,206 contracts, representing approximately 1.1 million underlying shares or approximately 55.7% of COF's average daily trading volume over the past month, of 2.0 million shares. Especially high volume was seen for the $105 strike call option expiring December 15, 2017, with 2,248 contracts trading so far today, representing approximately 224,800 underlying shares of COF. Below is a chart showing COF's trailing twelve month trading history, with the $105 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

And Comtech Telecommunications Corp. ( CMTL) options are showing a volume of 698 contracts thus far today. That number of contracts represents approximately 69,800 underlying shares, working out to a sizeable 52% of CMTL's average daily trading volume over the past month, of 134,135 shares. Particularly high volume was seen for the $20 strike call option expiring July 20, 2018, with 664 contracts trading so far today, representing approximately 66,400 underlying shares of CMTL. Below is a chart showing CMTL's trailing twelve month trading history, with the $20 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

For the various different available expirations for CBI options, COF options, or CMTL options, visit StockOptionsChannel.com.