Peter Tuchman: S&P 500 loses $1 trillion in market cap as index falls 1.5 percent

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S&P 500 loses $1 trillion market cap

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Ashutosh Sureka

23.07.2026

Peter Tuchman: S&P 500 loses $1 trillion in market cap as index falls 1.5 percent — S&P 500 loses $1 trillion market cap

Peter Tuchman reports that the S&P 500 experienced a significant decline, losing around $1 trillion in market capitalization after closing down 1.5 percent.

He adds that the five largest companies in the world accounted for about 50 percent of that market cap loss. Tuchman questions what is driving this sharp move and invites further discussion.

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Tuchman previously reported that the S&P 500 saw a $1.6 trillion decrease in market capitalization over the last five trading days. On another occasion, he noted the index added $350 billion in market cap with a 0.55% rise. These moves highlight ongoing fluctuations in major U.S. equity benchmarks.

This material may contain third-party opinions, none of the data and information on this webpage constitutes investment advice according to our Disclaimer. While we adhere to strict Editorial Integrity, this post may contain references to products from our partners.

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