The Great Divergence
If you had invested €10,000 in the S&P 500 in 2010 and another €10,000 in the Euro Stoxx 50 on the same day, you would have a very different balance in each account today. The US market has dramatically outperformed European markets over the past 15 years — a divergence so large that it has redefined how a generation of investors thinks about geographic diversification.
But this was not always the case. From 2000 to 2007, European stocks outperformed US stocks. And from 1970 to 1990, Japanese stocks outperformed everything. Markets rotate. The question for European investors is: do you bet on the US continuing to win, diversify globally, or lean into European stocks at their lower valuations?
Market Structure Comparison
| Feature | United States | Europe |
|---|---|---|
| Primary Indices | S&P 500, NASDAQ 100, Dow Jones | Euro Stoxx 50, STOXX Europe 600, FTSE 100, DAX |
| Total Market Cap | ~$55 trillion (2025) | ~$16 trillion (all European exchanges) |
| Global Share | ~60% of world market cap | ~15% of world market cap |
| Dominant Sectors | Technology (~30%), Healthcare, Consumer Discretionary | Financials, Industrials, Healthcare, Consumer Staples |
| Largest Company | Apple (~$3.5T) | ASML or Novo Nordisk (~$500-700B) |
| Number of Listed Companies | ~4,000 (NYSE + NASDAQ) | ~10,000+ (fragmented across 20+ exchanges) |
| Trading Hours (CET) | 15:30-22:00 CET | 09:00-17:30 CET (varies by exchange) |
| Settlement | T+1 | T+2 (most exchanges) |
Why the US Has Outperformed
Tech Sector Dominance
The US has Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, and Tesla. Europe has SAP and ASML. This single sector accounts for the majority of the performance gap. US tech companies have created trillions in market value that has no European equivalent.
Venture Capital & Innovation Ecosystem
Silicon Valley, Austin, New York, and Miami have produced wave after wave of world-changing companies. Europe's fragmented markets, conservative banking culture, and risk-averse regulatory environment have made it harder for startups to scale to global dominance.
Share Buybacks & Shareholder Returns
US companies aggressively buy back shares, reducing share count and boosting per-share metrics. S&P 500 companies returned over $1 trillion per year in buybacks in recent years. European companies are more conservative and tend to favor dividends over buybacks.
Unified Domestic Market
The US is a single market of 330+ million people with one language, one currency, and one regulatory framework. Europe is fragmented across 27 EU countries with different languages, cultures, labor laws, and in some cases different currencies. This makes scaling harder.
Energy & Demographics
The US achieved energy independence through the shale revolution, while Europe imports most of its energy. US population growth is also stronger, supporting domestic consumption. Europe's aging demographics (especially Germany, Italy, Japan) weigh on long-term growth potential.
Sector Breakdown — Where Each Market Leads
| Sector | US Weight | Europe Weight | Top US | Top Europe |
|---|---|---|---|---|
| Technology | ~30% | ~8% | Apple, Microsoft, Nvidia | ASML, SAP |
| Financials | ~13% | ~18% | JPMorgan, Berkshire | HSBC, BNP Paribas, Allianz |
| Healthcare | ~12% | ~15% | UnitedHealth, J&J, Lilly | Novo Nordisk, Roche, AstraZeneca |
| Industrials | ~9% | ~16% | GE Aerospace, Caterpillar | Siemens, Schneider Electric, Airbus |
| Consumer Staples | ~6% | ~11% | Procter & Gamble, Coca-Cola | Nestle, Unilever, L'Oreal |
| Luxury & Consumer | ~10% | ~12% | Amazon, Tesla, Nike | LVMH, Hermes, Richemont |
Weights are approximate and based on STOXX Europe 600 and S&P 500 as of 2025. Europe leads in luxury, industrials, and consumer staples. The US dominates technology.
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Currency Risk for European Investors
When you buy US stocks from Europe, you are making two bets: one on the stock price in USD, and one on the EUR/USD exchange rate. If the dollar strengthens against the euro, your returns look better when converted back. If the dollar weakens, your returns look worse.
Over short periods, currency moves can be dramatic. But over long periods (20-30 years), currency effects tend to average out. The euro was worth $0.85 in 2001, $1.60 in 2008, $1.05 in 2022, and has fluctuated in between.
Should you hedge currency? For long-term equity investments, most advisors say no. Currency hedging adds cost (typically 0.2-0.5% per year) and removes both the risk and the potential benefit of currency diversification. For bond investments or short-term holdings, hedging makes more sense.
The Case for European Stocks
Lower Valuations
European stocks trade at significantly lower P/E ratios than US stocks. Lower starting valuations historically predict higher future returns. The STOXX Europe 600 trades at roughly 13-15x earnings vs the S&P 500 at 20-25x.
Higher Dividends
European indices have higher dividend yields (~3-4%) compared to the S&P 500 (~1.3%). For income-focused investors or those using dividends to cover living expenses in early retirement, European stocks are attractive.
World-Class Companies
ASML (semiconductor lithography monopoly), LVMH (luxury empire), Novo Nordisk (GLP-1 drugs), Siemens, Airbus, Shell — Europe has globally dominant companies in industries where the US has no clear leader.
Mean Reversion
US outperformance of this magnitude and duration is historically unusual. Markets tend to revert to the mean over long periods. European stocks outperformed the US from 2000-2007 and could do so again.
Glen's Honest Take
I am an American investor. I have been overweight US stocks for most of my career. Here is what I think about this debate as honestly as I can:
1. The US has been the best market of my investing lifetime. There is no denying this. US tech companies have created more value than any sector in any country in modern history. If you have been overweight the US since 2010, congratulations — you were right.
2. Extrapolating past performance is the most common investing mistake. In 1989, Japan was 44% of global market capitalization and everyone was certain Japan would dominate the future. It has not recovered to its 1989 peak as of 2026. The same thing could happen to the US. I do not think it will, but I am humble enough to acknowledge I do not know.
3. The best approach for most people is global diversification. An MSCI World or FTSE All-World ETF gives you ~65-70% US exposure (plenty to benefit if the US keeps winning) plus 30-35% international exposure (insurance if it does not). That is the adult answer.
4. European investors have home bias in reverse. I see European investors who hold 100% S&P 500 and zero European stocks, essentially betting against their own economies. That is just as irrational as the French investor who holds nothing but CAC 40 stocks.
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Frequently Asked Questions
Why has the US stock market outperformed Europe?
The primary driver is the US tech sector. Companies like Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, and Tesla have created trillions of dollars in market value. Europe has no equivalents at this scale. Additionally, the US has stronger venture capital ecosystems, more aggressive share buyback cultures, fewer regulatory barriers to growth, and a larger unified domestic market. Demographic trends (stronger population growth) and energy independence have also contributed.
Will the US continue to outperform European stocks?
Nobody knows. US outperformance has been concentrated in the post-2009 period, driven largely by tech dominance. But markets are cyclical: from 2000-2007, European stocks significantly outperformed US stocks. High US valuations (P/E ratios near historical peaks) suggest future returns may be lower. Many professional investors expect international stocks to outperform over the next decade. But predicting market leadership is extremely difficult — which is why broad global diversification remains the safest approach.
Should European investors avoid European stocks entirely?
No. European stocks offer diversification benefits, lower valuations (P/E ratios are significantly below US levels), and exposure to industries where Europe leads: luxury goods (LVMH, Hermes), industrials (Siemens, Schneider Electric), pharmaceuticals (Novo Nordisk, Roche, AstraZeneca), and consumer staples (Nestle, Unilever). A global ETF like the MSCI World automatically includes these companies at market-weight allocations.
How does currency risk affect European investors in US stocks?
When a European investor buys US stocks or US-focused ETFs, they take on EUR/USD currency risk. If the dollar weakens against the euro, investment returns are reduced when converted back. If the dollar strengthens, returns are enhanced. Over long periods (20+ years), currency effects tend to wash out. Over shorter periods, they can be significant — a 10% stock gain combined with a 10% dollar decline results in roughly 0% return in euro terms. Most financial advisors suggest not hedging currency for long-term equity investments due to the cost and complexity.
What is the Euro Stoxx 50 and how does it compare to the S&P 500?
The Euro Stoxx 50 is an index of the 50 largest companies in the Eurozone (countries using the euro). It includes companies like ASML, LVMH, SAP, Siemens, and TotalEnergies. Unlike the S&P 500, it excludes UK, Swiss, and Scandinavian companies. The broader STOXX Europe 600 includes 600 companies across all of Europe and is a better benchmark for the entire European market. Both have dramatically underperformed the S&P 500 over the past 15 years.
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