S&P 500 vs. Nasdaq 100 — the Honest Comparison
The Nasdaq 100 has clearly beaten the S&P 500 over the past 15 years — which is exactly why it keeps showing up in portfolios as the supposedly "better S&P 500". That math ignores two things: the drawdown history, and the fact that the two indices overlap massively. Holding both is not diversification — it is leverage on US tech.
Structure: 500 stocks vs. 100 stocks excluding financials
The S&P 500 covers roughly 500 of the largest US companies across all sectors. The Nasdaq 100 holds the 100 largest non-financial Nasdaq stocks — effectively a tech and growth filter with far higher concentration: the top 10 carry noticeably more weight than in the already top-heavy S&P 500.
The key point for your portfolio: nearly every Nasdaq 100 constituent is also in the S&P 500. Combining both ETFs means buying Apple, Microsoft and Nvidia twice. The ETF overlap analysis shows your actual overlap at holdings level.
| Criterion | S&P 500 | Nasdaq 100 |
|---|---|---|
| Number of stocks | around 500 | 100 (no financials) |
| Sector focus | broad, all 11 sectors | tech and growth heavy |
| Max drawdown dot-com crash | around −49% | around −83% |
| Drawdown 2022 | around −25% | around −33% |
| Long-term volatility | lower | significantly higher |
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The drawdown reality: the return boost has a price
After the dot-com bubble burst, the Nasdaq 100 lost around 83% and needed roughly 15 years to reclaim its 2000 high. The S&P 500 fell around 49% over the same period and recovered considerably faster. 2022 repeated the pattern: roughly −33% versus −25%.
In concrete terms: on a €100,000 portfolio, a dot-com scenario in the Nasdaq 100 meant a paper loss of around €83,000 — and over a decade of waiting. The outperformance since 2009 is real, but it is compensation for exactly this risk, not free alpha.
Satellite logic instead of either-or
The better question is not "which index" but "how much Nasdaq 100 can my portfolio tolerate". As a 10–20% addition next to a broad core, tech exposure stays dosed without making the whole portfolio hostage to a handful of mega caps — the classic core-satellite strategy.
- S&P 500 only: broader, more robust, but already around 30% tech.
- Nasdaq 100 only: maximum growth exposure, historically brutal drawdowns.
- Core + satellite: controlled overweight with a clear ceiling.
For German investors, both are taxed identically: equity ETFs with 30% partial exemption, gains subject to the 26.375% flat tax including solidarity surcharge.
Frequently asked questions
Is the Nasdaq 100 better than the S&P 500 long term?
Since 2009, yes; over the full history including the dot-com crash the lead shrinks considerably. The extra return is a risk premium for higher volatility and deeper drawdowns, not a law of nature.
Can I hold the S&P 500 and Nasdaq 100 together?
You can, but nearly all Nasdaq 100 stocks are already in the S&P 500. The combination increases concentration in the same mega caps instead of diversifying.
How much Nasdaq 100 makes sense as an addition?
A common range is 10–20% as a satellite next to a broad core. That keeps the drawdown contribution limited while the tech overweight remains meaningful.
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