S&P 500 valuation risks hidden by concentration
The host argued that assuming the S&P 500's elevated P/E ratio is a permanent new baseline is dangerous, as the index's valuation is heavily propped up by a few outperforming companies.
The argument
The host noted that while the S&P 500 traded at 31x earnings at the end of 2025, removing the 'Magnificent Seven' drops the P/E of the remaining 493 companies to a more reasonable 19x. This concentration suggests the average American business has not structurally improved enough to justify the index's overall premium.
The thesis, stress-tested
✓ What validates it
- ✓A contraction in the P/E multiple of the Magnificent Seven
- ✓Broad-market earnings failing to grow to support the 19x multiple
▸ Risks discussed
- ▸Outperforming mega-caps could continue to justify their premiums through deep moats
- ▸Earnings growth in the broader 493 could catch up to valuations
Hear it yourself
"And because this time is different, investors can justify certain things, whether that's buying at unreasonable prices or even using excessive amounts of leverage. So today, I hear many investors saying that the S and P 500 is not a bubble, which I admit I probably actually agree with. But what I see as being as more dangerous behavior is assuming that the S and P five hundred's PE ratio is a new base at which the index will live for into the foreseeable future. But here's the interesting thing, the PE ratio of the S and P 500 at the end of twenty twenty five was 31 times."
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