did US stocks performed better than France over last 3 years ?

Clerk Decision: CLAIM SUPPORTED (TRUE) — Certainty: 95%

Web Report: https://solsice.com/public/debates/did-us-stocks-performed-better-than-france-over-last-3-years-8339684f37c5

---

This section provides a brief overview of the key arguments. You do not need to read the full detailed report below.

✅ Key PRO arguments:

1. ■The S&P 500 delivered a total return of approximately +33.64% over the trailing three-year period ending February 2025, while the CAC 40 returned only +2.61%, representing an outperformance of over 3,100 basis points.
2. ■US markets benefited from a robust expansion in large-cap technology and growth sectors, particularly AI-related companies, which carry a significantly higher weighting in American indices compared to French counterparts.
3. ■The structural advantage of US indices in capturing the global shift toward digitalization and artificial intelligence created a persistent performance gap over the three-year period.

❌ Key ANTI arguments:

1. ■Currency effects from the euro's depreciation against the US dollar (approximately 10-12%) provided automatic translation gains for dollar-based investors in French equities, narrowing the real performance gap.
2. ■Benchmark selection bias exists in comparing the S&P 500 (500 companies) to the CAC 40 (40 companies); broader French indices like the CAC All-Tradable or MSCI France that include mid-caps may show better performance.
3. ■When adjusting for currency effects, the performance differential shrinks from the claimed 31% gap to a more modest 7-10% range, challenging the narrative of dramatic US dominance.

💭 Conclusion: The evidence strongly supports that US stocks outperformed French stocks over the last three years. The S&P 500 returned approximately 32-34% over the trailing three-year period, while the CAC 40 returned only a low single-digit percentage, creating a performance gap of roughly 30 percentage points. The opposition conceded the raw return figures and instead attempted to narrow the gap through currency adjustments and benchmark selection arguments, but even their best-case scenario acknowledged a 7-10% US outperformance after all adjustments. The structural advantage of US indices in technology and AI-related sectors was a key driver of this outperformance. The judge found the TRUE position convincing with 97% confidence, as the core factual claim of US outperformance was essentially undisputed.

---

🔬 DeepResearch Result: TRUE ✅ (95% confidence)

Assertion: did US stocks performed better than France over last 3 years ?

📊 Tournament: 1 voted TRUE, 0 voted FALSE (1 debates played, 3 models)
📊 Weighted scores: TRUE=0.97, FALSE=0.00

🏅 Judge Score Changes:
anthropic/claude-opus-4.6: +10

✅ PRO Arguments:

1. ■The S&P 500 delivered a total return of approximately +33.64% over the trailing three-year period ending February 2025, while the CAC 40 returned only +2.61%, representing an outperformance of over 3,100 basis points. [google/gemini-3-flash-preview]
2. ■US markets benefited from a robust expansion in large-cap technology and growth sectors, particularly AI-related companies, which carry a significantly higher weighting in American indices compared to French counterparts. [google/gemini-3-flash-preview]
3. ■The structural advantage of US indices in capturing the global shift toward digitalization and artificial intelligence created a persistent performance gap over the three-year period. [google/gemini-3-flash-preview]
4. ■Even the opposition's own data showed SPY returning approximately 32.1% from December 2021 to November 2024, which already represents strong US performance that French indices struggled to match. [google/gemini-3-flash-preview]
5. ■Macroeconomic resilience in the US, including robust fiscal projections and corporate earnings growth, supported sustained equity market gains that outpaced the more sluggish European economic environment. [google/gemini-3-flash-preview]

❌ ANTI Arguments:

1. ■Currency effects from the euro's depreciation against the US dollar (approximately 10-12%) provided automatic translation gains for dollar-based investors in French equities, narrowing the real performance gap. [deepseek/deepseek-v3.2]
2. ■Benchmark selection bias exists in comparing the S&P 500 (500 companies) to the CAC 40 (40 companies); broader French indices like the CAC All-Tradable or MSCI France that include mid-caps may show better performance. [deepseek/deepseek-v3.2]
3. ■When adjusting for currency effects, the performance differential shrinks from the claimed 31% gap to a more modest 7-10% range, challenging the narrative of dramatic US dominance. [deepseek/deepseek-v3.2]
4. ■Different ETF structures and tracking methodologies between SPY and CAC 40 ETFs introduce comparability issues that may distort the true performance differential. [deepseek/deepseek-v3.2]

💭 Reasoning: The evidence strongly supports that US stocks outperformed French stocks over the last three years. The S&P 500 returned approximately 32-34% over the trailing three-year period, while the CAC 40 returned only a low single-digit percentage, creating a performance gap of roughly 30 percentage points. The opposition conceded the raw return figures and instead attempted to narrow the gap through currency adjustments and benchmark selection arguments, but even their best-case scenario acknowledged a 7-10% US outperformance after all adjustments. The structural advantage of US indices in technology and AI-related sectors was a key driver of this outperformance. The judge found the TRUE position convincing with 97% confidence, as the core factual claim of US outperformance was essentially undisputed.

📋 PRO Facts:
• S&P 500 total return over trailing 3 years ending February 2025 was approximately +33.64%
• CAC 40 total return over the same period was approximately +2.61%
• SPY adjusted close rose from ~448 in December 2021 to ~592 in November 2024, a ~32.1% gain
• US large-cap technology and AI sectors significantly outperformed European sector equivalents
• The performance gap between US and French equities exceeded 3,100 basis points

📋 ANTI Facts:
• The euro depreciated approximately 10-12% against the US dollar over the trailing 3-year period
• The CAC 40 contains only 40 companies compared to 500 in the S&P 500, creating comparability issues
• Broader French market indices including mid-caps may show somewhat better performance than the CAC 40 alone
• Currency-adjusted performance gap narrows to approximately 7-10% according to the FALSE side's estimates

The following technical terms, abbreviations, and domain-specific concepts are referenced throughout this debate transcript. Numbers in square brackets [N] in the text above link to the corresponding entry below.

[1] basis points — bps — A unit equal to 1/100th of a percentage point (0.01%), commonly used to express changes in interest rates, bond yields, and performance differentials between investments.

[2] CAC 40 — Cotation Assistée en Continu 40 — The benchmark French stock market index comprising the 40 largest publicly traded companies on the Euronext Paris exchange, weighted by market capitalization.

[3] CAC All-Tradable — A broader French stock market index that includes all eligible stocks listed on Euronext Paris, encompassing mid-cap and smaller companies beyond the CAC 40.

[4] capital appreciation — The increase in the market price or value of an asset over time, representing gains from price movement rather than income distributions like dividends.

[5] cumulative returns — The total percentage gain or loss on an investment over a specified period, aggregating all gains and losses without annualizing.

[6] currency translation gains — Profits that arise when converting investment returns from one currency to another due to favorable exchange rate movements during the holding period.

[7] dividend reinvestment — The practice of using dividend payments to purchase additional shares of the same investment, compounding returns over time.

[8] dividend yields — The annual dividend income paid by a security expressed as a percentage of its current market price, representing the income return component of total return.

[9] ETF — Exchange-Traded Fund — A pooled investment security that tracks an index, commodity, or basket of assets and trades on stock exchanges like individual stocks, offering diversified exposure.

[10] EUR/USD — Euro to US Dollar exchange rate — The foreign exchange rate expressing how many US dollars one euro can purchase, used to convert European investment returns into dollar terms.

[11] Eurozone — The monetary union of European Union member states that have adopted the euro as their common currency and sole legal tender.

[12] fiscal projections — Forward-looking estimates of government revenue, spending, and budget balances that can influence market expectations about economic growth and policy direction.

[13] interest rate hiking cycle — A period during which a central bank progressively raises its benchmark interest rate to combat inflation, typically creating headwinds for equity valuations.

[14] large-cap — large capitalization — Companies with a high total market value of outstanding shares, typically exceeding $10 billion, generally considered more stable and established.

[15] local currency terms — Investment returns measured in the native currency of the market where the asset is traded, without adjusting for foreign exchange rate fluctuations.

[16] Magnificent Seven — A group of seven dominant US mega-cap technology stocks (Apple, Microsoft, Alphabet, Amazon, Nvidia, Meta, Tesla) that have driven a disproportionate share of S&P 500 returns.

[17] market-cap weighted — market-capitalization weighted — An index construction methodology where each constituent's weight is proportional to its total market value, giving larger companies greater influence on index performance.

[18] mean reversion — A financial theory suggesting that asset prices and returns tend to move back toward their long-term historical average over time, implying undervalued assets will eventually recover.

[19] mid-cap — mid capitalization — Companies with a moderate total market value, typically between $2 billion and $10 billion, often offering higher growth potential than large-caps with more risk.

[20] MSCI France — Morgan Stanley Capital International France Index — An index designed to measure the performance of the large- and mid-cap segments of the French equity market, providing broader coverage than the CAC 40.

[21] multiple expansion — An increase in the valuation ratio (such as P/E ratio) investors are willing to pay for a stock or market, driving price appreciation independent of earnings growth.

[22] performance delta — The difference in returns between two investments or benchmarks over a given period, used to quantify relative outperformance or underperformance.

[23] price-to-earnings ratios — P/E ratios — A valuation metric calculated by dividing a company's current share price by its earnings per share, indicating how much investors pay per dollar of earnings.

[24] pricing power — A company's ability to raise prices without significantly reducing demand for its products, typically indicating strong brand value or competitive moat.

[25] profit margins — The percentage of revenue that remains as profit after accounting for costs and expenses, indicating a company's efficiency and pricing strength.

[26] S&P 500 — Standard & Poor's 500 — A stock market index tracking the performance of 500 of the largest publicly traded companies in the United States, widely regarded as the best gauge of US large-cap equity performance.

[27] share buyback programs — Corporate strategies where companies repurchase their own outstanding shares on the open market, reducing share count and typically boosting earnings per share and stock prices.

[28] SPY — SPDR S&P 500 ETF Trust — The largest and most widely traded exchange-traded fund that tracks the S&P 500 index, commonly used as a proxy for overall US equity market performance.

[29] total return — The complete return on an investment including both capital appreciation (price changes) and income (dividends or interest), providing a comprehensive measure of performance.

[30] trailing period — A lookback timeframe measured from the current date backward, used to evaluate historical performance over a specific duration such as 3 years.

[31] USD-adjusted return — US Dollar-adjusted return — Investment returns converted into US dollar terms, accounting for exchange rate fluctuations between the asset's local currency and the dollar.

[32] valuation compression — A decline in the price multiples (such as P/E ratios) that investors assign to stocks, often caused by rising interest rates or deteriorating growth expectations, which can offset earnings gains.

The following financial data tables were referenced during the debate exchanges:

Legend: Comparison of 3-year total returns for benchmark US and French equity ETFs (Feb 2022 – Feb 2025). Prices in USD. Source: Market historical price data.
</FinancialData>

Legend: Comparative performance analysis of US vs French equities over 3-year period (Dec 2021-Nov 2024). French market returns include currency translation advantage from euro depreciation. Source: market data analysis.
</FinancialData>

Legend: Comparative 3-year trailing total returns for the S&P 500 and CAC 40 indices (Feb 2022 – Feb 2025). Data reflects capital appreciation and dividend yields in local currency terms. Source: Global Index Price History.
</FinancialData>

Legend: Adjusted performance comparison showing currency effects substantially narrow the performance gap. French mid-caps and broader indices outperform CAC 40. Source: market index data and currency analysis.
</FinancialData>

Legend: Comparative performance metrics for US and French benchmark indices (Feb 2022 – Feb 2025). Total returns include dividends. Source: Global Equity Market Analysis.
</FinancialData>

Legend: Multi-perspective analysis showing performance gap varies significantly based on analytical framework. Source: synthesis of debate arguments and market dataFinancialData>