Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Potbelly Corp (PBPB - Get Report), where a total volume of 854 contracts has been traded thus far today, a contract volume which is representative of approximately 85,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 51.9% of PBPB's average daily trading volume over the past month, of 164,595 shares. Especially high volume was seen for the $12 strike put option expiring February 16, 2018, with 784 contracts trading so far today, representing approximately 78,400 underlying shares of PBPB. Below is a chart showing PBPB's trailing twelve month trading history, with the $12 strike highlighted in orange:

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CalAmp Corp ( CAMP) saw options trading volume of 1,863 contracts, representing approximately 186,300 underlying shares or approximately 51.1% of CAMP's average daily trading volume over the past month, of 364,845 shares. Particularly high volume was seen for the $25 strike call option expiring June 15, 2018, with 478 contracts trading so far today, representing approximately 47,800 underlying shares of CAMP. Below is a chart showing CAMP's trailing twelve month trading history, with the $25 strike highlighted in orange:

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And Akamai Technologies Inc ( AKAM) options are showing a volume of 8,936 contracts thus far today. That number of contracts represents approximately 893,600 underlying shares, working out to a sizeable 50.1% of AKAM's average daily trading volume over the past month, of 1.8 million shares. Especially high volume was seen for the $66 strike call option expiring February 09, 2018, with 2,911 contracts trading so far today, representing approximately 291,100 underlying shares of AKAM. Below is a chart showing AKAM's trailing twelve month trading history, with the $66 strike highlighted in orange:

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For the various different available expirations for PBPB options, CAMP options, or AKAM options, visit StockOptionsChannel.com.