Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Ulta Beauty Inc (ULTA), where a total of 3,716 contracts have traded so far, representing approximately 371,600 underlying shares. That amounts to about 76.8% of ULTA's average daily trading volume over the past month of 483,640 shares. Particularly high volume was seen for the $305 strike put option expiring August 27, 2021, with 421 contracts trading so far today, representing approximately 42,100 underlying shares of ULTA. Below is a chart showing ULTA's trailing twelve month trading history, with the $305 strike highlighted in orange:

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

Yum! Brands Inc (YUM) saw options trading volume of 9,804 contracts, representing approximately 980,400 underlying shares or approximately 62.7% of YUM's average daily trading volume over the past month, of 1.6 million shares. Particularly high volume was seen for the $135 strike call option expiring October 15, 2021, with 4,066 contracts trading so far today, representing approximately 406,600 underlying shares of YUM. Below is a chart showing YUM's trailing twelve month trading history, with the $135 strike highlighted in orange:

And Micron Technology Inc. (MU) options are showing a volume of 121,932 contracts thus far today. That number of contracts represents approximately 12.2 million underlying shares, working out to a sizeable 55.4% of MU's average daily trading volume over the past month, of 22.0 million shares. Particularly high volume was seen for the $65 strike put option expiring August 27, 2021, with 13,749 contracts trading so far today, representing approximately 1.4 million underlying shares of MU. Below is a chart showing MU's trailing twelve month trading history, with the $65 strike highlighted in orange: