Notable Thursday Option Activity: ALNY, NTLA, IMMR

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Alnylam Pharmaceuticals Inc (ALNY), where a total volume of 8,996 contracts has been traded thus far today, a contract volume which is representative of approximately 899,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 93.8% of ALNY's average daily trading volume over the past month, of 959,440 shares. Especially high volume was seen for the $105 strike call option expiring November 17, 2017, with 2,053 contracts trading so far today, representing approximately 205,300 underlying shares of ALNY. Below is a chart showing ALNY's trailing twelve month trading history, with the $105 strike highlighted in orange:

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Intellia Therapeutics Inc ( NTLA) options are showing a volume of 2,642 contracts thus far today. That number of contracts represents approximately 264,200 underlying shares, working out to a sizeable 65.4% of NTLA's average daily trading volume over the past month, of 404,120 shares. Particularly high volume was seen for the $17.50 strike put option expiring November 17, 2017, with 600 contracts trading so far today, representing approximately 60,000 underlying shares of NTLA. Below is a chart showing NTLA's trailing twelve month trading history, with the $17.50 strike highlighted in orange:

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And Immersion Corp ( IMMR) saw options trading volume of 651 contracts, representing approximately 65,100 underlying shares or approximately 53.2% of IMMR's average daily trading volume over the past month, of 122,275 shares. Particularly high volume was seen for the $7.50 strike call option expiring December 15, 2017, with 625 contracts trading so far today, representing approximately 62,500 underlying shares of IMMR. Below is a chart showing IMMR's trailing twelve month trading history, with the $7.50 strike highlighted in orange:

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For the various different available expirations for ALNY options, NTLA options, or IMMR options, visit StockOptionsChannel.com.

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