Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Osiris Therapeutics Inc (OSIR), where a total volume of 1,040 contracts has been traded thus far today, a contract volume which is representative of approximately 104,000 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 112.8% of OSIR's average daily trading volume over the past month, of 92,220 shares. Particularly high volume was seen for the $5 strike put option expiring August 18, 2017, with 914 contracts trading so far today, representing approximately 91,400 underlying shares of OSIR. Below is a chart showing OSIR's trailing twelve month trading history, with the $5 strike highlighted in orange:

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United Therapeutics Corp ( UTHR) options are showing a volume of 5,204 contracts thus far today. That number of contracts represents approximately 520,400 underlying shares, working out to a sizeable 92.2% of UTHR's average daily trading volume over the past month, of 564,470 shares. Especially high volume was seen for the $165 strike call option expiring May 19, 2017, with 2,500 contracts trading so far today, representing approximately 250,000 underlying shares of UTHR. Below is a chart showing UTHR's trailing twelve month trading history, with the $165 strike highlighted in orange:

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And National Beverage Corp. ( FIZZ) saw options trading volume of 2,005 contracts, representing approximately 200,500 underlying shares or approximately 87.4% of FIZZ's average daily trading volume over the past month, of 229,365 shares. Particularly high volume was seen for the $55 strike call option expiring June 16, 2017, with 1,050 contracts trading so far today, representing approximately 105,000 underlying shares of FIZZ. Below is a chart showing FIZZ's trailing twelve month trading history, with the $55 strike highlighted in orange:

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For the various different available expirations for OSIR options, UTHR options, or FIZZ options, visit StockOptionsChannel.com.

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