Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in OneSpan Inc (OSPN), where a total of 5,034 contracts have traded so far, representing approximately 503,400 underlying shares. That amounts to about 479.1% of OSPN's average daily trading volume over the past month of 105,070 shares. Especially high volume was seen for the $22.50 strike put option expiring December 17, 2021, with 2,097 contracts trading so far today, representing approximately 209,700 underlying shares of OSPN. Below is a chart showing OSPN's trailing twelve month trading history, with the $22.50 strike highlighted in orange:

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

Wynn Resorts Ltd (WYNN) options are showing a volume of 101,419 contracts thus far today. That number of contracts represents approximately 10.1 million underlying shares, working out to a sizeable 303.9% of WYNN's average daily trading volume over the past month, of 3.3 million shares. Especially high volume was seen for the $140 strike call option expiring December 17, 2021, with 10,283 contracts trading so far today, representing approximately 1.0 million underlying shares of WYNN. Below is a chart showing WYNN's trailing twelve month trading history, with the $140 strike highlighted in orange:

And Caesars Entertainment Inc (CZR) saw options trading volume of 60,411 contracts, representing approximately 6.0 million underlying shares or approximately 248.3% of CZR's average daily trading volume over the past month, of 2.4 million shares. Particularly high volume was seen for the $130 strike call option expiring December 17, 2021, with 16,004 contracts trading so far today, representing approximately 1.6 million underlying shares of CZR. Below is a chart showing CZR's trailing twelve month trading history, with the $130 strike highlighted in orange: