Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Atlas Air Worldwide Holdings, Inc. (AAWW), where a total volume of 4,212 contracts has been traded thus far today, a contract volume which is representative of approximately 421,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 58.7% of AAWW's average daily trading volume over the past month, of 717,065 shares. Particularly high volume was seen for the $75 strike put option expiring March 18, 2022, with 1,250 contracts trading so far today, representing approximately 125,000 underlying shares of AAWW. Below is a chart showing AAWW's trailing twelve month trading history, with the $75 strike highlighted in orange:

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Today's Most Active Call & Put Options of the S&P 500 »

Azenta Inc (AZTA) options are showing a volume of 3,664 contracts thus far today. That number of contracts represents approximately 366,400 underlying shares, working out to a sizeable 58.3% of AZTA's average daily trading volume over the past month, of 628,745 shares. Particularly high volume was seen for the $85 strike call option expiring March 18, 2022, with 849 contracts trading so far today, representing approximately 84,900 underlying shares of AZTA. Below is a chart showing AZTA's trailing twelve month trading history, with the $85 strike highlighted in orange:

And NanoString Technologies Inc (NSTG) saw options trading volume of 3,007 contracts, representing approximately 300,700 underlying shares or approximately 55.8% of NSTG's average daily trading volume over the past month, of 538,430 shares. Especially high volume was seen for the $40 strike call option expiring February 18, 2022, with 1,001 contracts trading so far today, representing approximately 100,100 underlying shares of NSTG. Below is a chart showing NSTG's trailing twelve month trading history, with the $40 strike highlighted in orange: