MSCI World vs S&P 500: Which ETF Should You Choose?
Comparison of MSCI World and S&P 500 ETFs. Geographic diversification, historical returns, and which index is better for European long-term investors.
7 min czytaniaMSCI World vs S&P 500: Which ETF Should You Choose?
This is the most common ETF selection question among European investors. The S&P 500 tracks 500 US large-cap companies. The MSCI World tracks approximately 1,500 companies across 23 developed countries. Over the past decade, the S&P 500 has outperformed MSCI World by 2-3% annually, mostly due to US tech dominance. But does past US outperformance justify concentrating your portfolio in a single country?
The data
Historical returns (annualised, USD)
| Period | S&P 500 | MSCI World | Difference |
|---|---|---|---|
| 5 years (2021-2025) | ~12% | ~10% | +2% S&P |
| 10 years (2016-2025) | ~13% | ~11% | +2% S&P |
| 15 years (2011-2025) | ~14% | ~11% | +3% S&P |
| 20 years (2006-2025) | ~10% | ~9% | +1% S&P |
| 30 years (1996-2025) | ~10% | ~8% | +2% S&P |
The S&P 500 has won convincingly over the recent period. But this was not always the case.
When international markets won
| Period | S&P 500 | MSCI EAFE (International) |
|---|---|---|
| 2000-2009 | -1% (annualised) | +1% |
| 1970-1979 | +6% | +10% |
| 1985-1989 | +16% | +23% |
There are entire decades where non-US developed markets outperformed the US. The current US dominance is not permanent.
The case for S&P 500 only
- US companies are global. Apple, Microsoft, Google, Amazon earn 40-60% of revenue outside the US. You get global exposure through US-listed multinationals.
- Superior recent performance. US tech innovation has been extraordinary and shows no signs of slowing.
- Deeper, more liquid market. US market structure, corporate governance, and shareholder rights are stronger.
- Lower TER. S&P 500 ETFs cost 0.07% vs 0.20% for MSCI World. Small difference but it compounds.
The case for MSCI World
- Geographic diversification. The S&P 500 is 100% US. MSCI World spreads risk across 23 countries (US ~70%, Europe ~15%, Japan ~6%, others ~9%).
- Mean reversion. US outperformance is cyclical, not permanent. The next decade could favour Europe or Asia.
- Concentration risk. The top 7 US stocks (Magnificent Seven) make up ~30% of the S&P 500. A sector rotation away from tech would hit S&P 500 disproportionately.
- Currency diversification. For a PLN-based investor, MSCI World provides exposure to EUR, GBP, JPY, and CHF alongside USD.
The practical answer
If you can only hold one ETF
VWCE (Vanguard FTSE All-World) solves the problem entirely. It includes both US large-caps (same as S&P 500) and international developed + emerging markets. Current US weight: approximately 62%. You get the best of both worlds without needing to make an active allocation decision.
If you want to customise
- 70% IWDA (MSCI World) + 15% EMIM (Emerging Markets) + 15% bonds (AGGH) — Developed + emerging markets globally, no active US bet
- 50% CSPX (S&P 500) + 30% IWDA (MSCI World) + 20% other — Overweight US while maintaining international diversification
- 100% CSPX — Maximum US concentration. Only choose this if you have strong conviction in continued US outperformance and can tolerate the concentration risk.
The honest advice for most Polish investors
Buy VWCE. It removes the MSCI World vs S&P 500 decision entirely. The 0.22% TER is slightly higher than CSPX's 0.07% but the diversification benefit is worth far more than 0.15% per year. You will never regret having owned the entire world.
Track your equity allocation by geography in Freenance. Whether you hold VWCE, IWDA, CSPX, or a combination, seeing your US vs international exposure helps you understand your portfolio's true diversification.
Related Articles
- IWDA Review — Deep dive into the MSCI World ETF
- S&P 500 ETF: How to Buy in Poland — Buying guide
- Bogleheads Three-Fund Portfolio — Portfolio construction framework
Want full control over your finances?
Try Freenance for free