Equal weight S&P 500 over market cap
The bull case for equal-weight indexing over market-cap weighting is supported by a century of historical data showing small-cap outperformance, suggesting the current extreme concentration in mega-caps will eventually mean-revert.
The argument
The host argued that while the market-cap weighted S&P 500 has massively outperformed recently due to a few mega-cap tech names, historical cycles favor equal-weighting. He noted that previous major bubbles (like Japan in the 1980s and the Nifty Fifty) were large-cap phenomena that eventually corrected.
The thesis, stress-tested
✓ What validates it
- ✓A sustained narrowing of the performance gap between the S&P 500 equal-weight index and the standard S&P 500
- ✓Earnings growth accelerating in the bottom 490 stocks of the S&P 500 relative to the top 10
▸ Risks discussed
- ▸Technological revolutions can structurally shift the economy, allowing mega-caps to maintain dominance for longer than historical averages
Hear it yourself
"I contrasted it with the equal weight versus S and P 500, which has collapsed, you know, relative to the market capitalization weight index, which is up a lot, which is why it looks like it's collapsed."
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