Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Cassava Sciences Inc (SAVA), where a total of 16,971 contracts have traded so far, representing approximately 1.7 million underlying shares. That amounts to about 90% of SAVA's average daily trading volume over the past month of 1.9 million shares. Especially high volume was seen for the $10 strike put option expiring December 15, 2023, with 1,379 contracts trading so far today, representing approximately 137,900 underlying shares of SAVA. Below is a chart showing SAVA's trailing twelve month trading history, with the $10 strike highlighted in orange:

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

CryoPort Inc (CYRX) options are showing a volume of 5,296 contracts thus far today. That number of contracts represents approximately 529,600 underlying shares, working out to a sizeable 89.7% of CYRX's average daily trading volume over the past month, of 590,635 shares. Especially high volume was seen for the $15 strike put option expiring November 17, 2023, with 2,153 contracts trading so far today, representing approximately 215,300 underlying shares of CYRX. Below is a chart showing CYRX's trailing twelve month trading history, with the $15 strike highlighted in orange:

And Covenant Logistics Group Inc (CVLG) options are showing a volume of 419 contracts thus far today. That number of contracts represents approximately 41,900 underlying shares, working out to a sizeable 83.7% of CVLG's average daily trading volume over the past month, of 50,055 shares. Particularly high volume was seen for the $35 strike put option expiring November 17, 2023, with 395 contracts trading so far today, representing approximately 39,500 underlying shares of CVLG. Below is a chart showing CVLG's trailing twelve month trading history, with the $35 strike highlighted in orange: