Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Nevro Corp (NVRO), where a total volume of 2,595 contracts has been traded thus far today, a contract volume which is representative of approximately 259,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 61.9% of NVRO's average daily trading volume over the past month, of 419,080 shares. Particularly high volume was seen for the $45 strike put option expiring August 18, 2023, with 1,500 contracts trading so far today, representing approximately 150,000 underlying shares of NVRO. Below is a chart showing NVRO's trailing twelve month trading history, with the $45 strike highlighted in orange:

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

Steelcase, Inc. (SCS) saw options trading volume of 5,282 contracts, representing approximately 528,200 underlying shares or approximately 60.6% of SCS's average daily trading volume over the past month, of 871,085 shares. Particularly high volume was seen for the $7.50 strike put option expiring January 20, 2023, with 2,529 contracts trading so far today, representing approximately 252,900 underlying shares of SCS. Below is a chart showing SCS's trailing twelve month trading history, with the $7.50 strike highlighted in orange:

And FactSet Research Systems Inc. (FDS) options are showing a volume of 1,562 contracts thus far today. That number of contracts represents approximately 156,200 underlying shares, working out to a sizeable 58.7% of FDS's average daily trading volume over the past month, of 265,925 shares. Especially high volume was seen for the $420 strike call option expiring January 20, 2023, with 391 contracts trading so far today, representing approximately 39,100 underlying shares of FDS. Below is a chart showing FDS's trailing twelve month trading history, with the $420 strike highlighted in orange: