Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Dow Inc (DOW), where a total of 21,511 contracts have traded so far, representing approximately 2.2 million underlying shares. That amounts to about 53.4% of DOW's average daily trading volume over the past month of 4.0 million shares. Especially high volume was seen for the $52.50 strike put option expiring September 17, 2021, with 6,766 contracts trading so far today, representing approximately 676,600 underlying shares of DOW. Below is a chart showing DOW's trailing twelve month trading history, with the $52.50 strike highlighted in orange:

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

General Motors Co (GM) options are showing a volume of 74,453 contracts thus far today. That number of contracts represents approximately 7.4 million underlying shares, working out to a sizeable 52.9% of GM's average daily trading volume over the past month, of 14.1 million shares. Especially high volume was seen for the $62.50 strike call option expiring September 17, 2021, with 11,734 contracts trading so far today, representing approximately 1.2 million underlying shares of GM. Below is a chart showing GM's trailing twelve month trading history, with the $62.50 strike highlighted in orange:

And Texas Instruments Inc. (TXN) options are showing a volume of 16,310 contracts thus far today. That number of contracts represents approximately 1.6 million underlying shares, working out to a sizeable 49.3% of TXN's average daily trading volume over the past month, of 3.3 million shares. Particularly high volume was seen for the $195 strike call option expiring July 23, 2021, with 1,290 contracts trading so far today, representing approximately 129,000 underlying shares of TXN. Below is a chart showing TXN's trailing twelve month trading history, with the $195 strike highlighted in orange: