Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Bandwidth Inc (BAND), where a total volume of 8,963 contracts has been traded thus far today, a contract volume which is representative of approximately 896,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 175.6% of BAND's average daily trading volume over the past month, of 510,515 shares. Especially high volume was seen for the $80 strike call option expiring June 17, 2022, with 2,400 contracts trading so far today, representing approximately 240,000 underlying shares of BAND. Below is a chart showing BAND's trailing twelve month trading history, with the $80 strike highlighted in orange:

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

Pool Corp (POOL) options are showing a volume of 3,857 contracts thus far today. That number of contracts represents approximately 385,700 underlying shares, working out to a sizeable 171.2% of POOL's average daily trading volume over the past month, of 225,245 shares. Particularly high volume was seen for the $500 strike put option expiring January 21, 2022, with 441 contracts trading so far today, representing approximately 44,100 underlying shares of POOL. Below is a chart showing POOL's trailing twelve month trading history, with the $500 strike highlighted in orange:

And Sturm, Ruger & Co., Inc. (RGR) saw options trading volume of 2,642 contracts, representing approximately 264,200 underlying shares or approximately 141.9% of RGR's average daily trading volume over the past month, of 186,200 shares. Particularly high volume was seen for the $75 strike call option expiring December 17, 2021, with 748 contracts trading so far today, representing approximately 74,800 underlying shares of RGR. Below is a chart showing RGR's trailing twelve month trading history, with the $75 strike highlighted in orange: