Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Layne Christensen Co. (LAYN), where a total volume of 2,064 contracts has been traded thus far today, a contract volume which is representative of approximately 206,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 176.9% of LAYN's average daily trading volume over the past month, of 116,660 shares. Particularly high volume was seen for the $7.50 strike put option expiring June 16, 2017, with 1,000 contracts trading so far today, representing approximately 100,000 underlying shares of LAYN. Below is a chart showing LAYN's trailing twelve month trading history, with the $7.50 strike highlighted in orange:

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Gladstone Commercial Corp ( GOOD) options are showing a volume of 1,504 contracts thus far today. That number of contracts represents approximately 150,400 underlying shares, working out to a sizeable 124.2% of GOOD's average daily trading volume over the past month, of 121,105 shares. Especially high volume was seen for the $22.50 strike call option expiring September 15, 2017, with 1,364 contracts trading so far today, representing approximately 136,400 underlying shares of GOOD. Below is a chart showing GOOD's trailing twelve month trading history, with the $22.50 strike highlighted in orange:

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And Ambarella, Inc. ( AMBA) saw options trading volume of 7,158 contracts, representing approximately 715,800 underlying shares or approximately 87.4% of AMBA's average daily trading volume over the past month, of 818,905 shares. Especially high volume was seen for the $54 strike call option expiring April 13, 2017, with 2,132 contracts trading so far today, representing approximately 213,200 underlying shares of AMBA. Below is a chart showing AMBA's trailing twelve month trading history, with the $54 strike highlighted in orange:

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For the various different available expirations for LAYN options, GOOD options, or AMBA options, visit StockOptionsChannel.com.