Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Amgen Inc (Symbol: AMGN), where a total volume of 24,919 contracts has been traded thus far today, a contract volume which is representative of approximately 2.5 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 111.4% of AMGN’s average daily trading volume over the past month, of 2.2 million shares. Especially high volume was seen for the $350 strike put option expiring November 20, 2026, with 3,010 contracts trading so far today, representing approximately 301,000 underlying shares of AMGN. Below is a chart showing AMGN’s trailing twelve month trading history, with the $350 strike highlighted in orange:
Vistra Corp (Symbol: VST) saw options trading volume of 33,396 contracts, representing approximately 3.3 million underlying shares or approximately 84.7% of VST’s average daily trading volume over the past month, of 3.9 million shares.
Particularly high volume was seen for the $120 strike put option expiring November 20, 2026, with 2,635 contracts trading so far today, representing approximately 263,500 underlying shares of VST. Below is a chart showing VST’s trailing twelve month trading history, with the $120 strike highlighted in orange:
And Dell Technologies Inc (Symbol: DELL) saw options trading volume of 63,905 contracts, representing approximately 6.4 million underlying shares or approximately 76.8% of DELL’s average daily trading volume over the past month, of 8.3 million shares.
Especially high volume was seen for the $525 strike put option expiring September 11, 2026, with 1,901 contracts trading so far today, representing approximately 190,100 underlying shares of DELL. Below is a chart showing DELL’s trailing twelve month trading history, with the $525 strike highlighted in orange:
For the various different available expirations for AMGN options, VST options, or DELL options, visit StockOptionsChannel.com.
Today’s Most Active Call & Put Options of the S&P 500 »


















