Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in CADIZ Inc (CDZI - Get Report), where a total volume of 1,029 contracts has been traded thus far today, a contract volume which is representative of approximately 102,900 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 40.7% of CDZI's average daily trading volume over the past month, of 252,650 shares. Particularly high volume was seen for the $10 strike call option expiring July 21, 2017, with 650 contracts trading so far today, representing approximately 65,000 underlying shares of CDZI. Below is a chart showing CDZI's trailing twelve month trading history, with the $10 strike highlighted in orange:

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Interdigital Inc ( IDCC) options are showing a volume of 1,035 contracts thus far today. That number of contracts represents approximately 103,500 underlying shares, working out to a sizeable 40.6% of IDCC's average daily trading volume over the past month, of 255,120 shares. Particularly high volume was seen for the $82.50 strike call option expiring July 21, 2017, with 208 contracts trading so far today, representing approximately 20,800 underlying shares of IDCC. Below is a chart showing IDCC's trailing twelve month trading history, with the $82.50 strike highlighted in orange:

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And Skechers USA Inc ( SKX) options are showing a volume of 9,857 contracts thus far today. That number of contracts represents approximately 985,700 underlying shares, working out to a sizeable 40.4% of SKX's average daily trading volume over the past month, of 2.4 million shares. Particularly high volume was seen for the $30 strike call option expiring August 18, 2017, with 2,677 contracts trading so far today, representing approximately 267,700 underlying shares of SKX. Below is a chart showing SKX's trailing twelve month trading history, with the $30 strike highlighted in orange:

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For the various different available expirations for CDZI options, IDCC options, or SKX options, visit StockOptionsChannel.com.