US Equity Markets Lag Global Peers as S&P 500 Faces Technology Headwinds and Valuation Pressures

The relative performance of U.S. equities versus global markets in early 2026 represents a remarkable reversal from the consistent outperformance that characterized much of the post-pandemic period. The S&P 500 is off to its weakest relative start versus global markets since 1995, with the S&P 500 essentially flat while the iShares MSCI ACWI ex U.S. ETF is up 7.7%. This divergence marks the worst early-year relative performance for U.S. equities in more than three decades, raising important questions regarding valuation, growth expectations, and the durability of U.S. equity outperformance trends. Understanding this shifting dynamic requires examination of the factors reshaping relative valuations and growth expectations between U.S. and non-U.S. equities.

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The magnitude of the underperformance gap between U.S. and international equities at the beginning of 2026 has created legitimate questions among investors regarding whether a fundamental shift in competitive positioning is underway. The iShares MSCI ACWI ex U.S. ETF being up 7.7% compared to the S&P 500’s near-flat performance in the first quarter represents a meaningful divergence that cannot be attributed to normal volatility or quarterly noise. The consistency of this outperformance over the entire quarter suggests that genuine fundamental shifts in investor preferences or valuation assessments are driving the divergence. The last time such extreme underperformance of U.S. equities occurred was in 1995, suggesting that the current environment represents a rare development requiring careful analysis and consideration.

The specific drivers of non-U.S. equity outperformance deserve careful examination to understand whether this represents a temporary tactical shift or a longer-term reorientation of investor capital flows. Emerging markets and Europe have experienced improvements in both narratives and longer-term fundamentals, suggesting that the outperformance reflects genuine improvements in business fundamentals and investor sentiment rather than simply mean reversion from previous underperformance. The narrative improvements in emerging markets reflect better growth prospects and clearer corporate strategies. The fundamental improvements include stronger earnings growth, improving profitability, and better capital allocation decisions by corporate managers. These improvements suggest that the outperformance has substantive foundations rather than representing pure technical reversal.

Valuation Divergence and Mean Reversion

The valuation divergence between U.S. equities and non-U.S. alternatives provides important context for understanding the relative performance trends. U.S. equities, particularly in the technology sector, are valued at elevated multiples reflecting optimistic consensus expectations regarding artificial intelligence monetization and corporate earnings growth. Non-U.S. equities, by contrast, trade at more modest valuations in many instances, offering greater downside protection if earnings growth disappoints. The valuation advantage of non-U.S. equities creates a structural bias toward continued outperformance if valuation mean reversion occurs. International investors with longer time horizons may find attractive entry points in non-U.S. equities trading at reasonable valuations.

The price-to-earnings (P/E) multiples for the S&P 500 exceed those of major non-U.S. indexes by meaningful margins in many instances. Technology mega-caps trade at multiples substantially exceeding historical averages, reflecting consensus expectations of extraordinary earnings growth. The sustainability of these high multiples depends on delivery of earnings growth in the 20-25% ranges that are currently embedded in valuations. Historical precedent suggests that such extreme growth expectations frequently fail to materialize, creating valuation compression risk for investors at current price levels.

The valuation advantage available in non-U.S. markets creates asymmetric risk-reward dynamics that favor international exposure. Should earnings growth disappointments trigger multiple compression in U.S. equities, valuations in non-U.S. markets remain supported by more modest starting valuation levels. The opportunity to benefit from earnings growth without the valuation compression risk that accompanies elevated starting multiples creates an attractive positioning for forward-looking investors.

Sectoral Performance Differences

The specific sectoral exposures of non-U.S. equity markets versus the S&P 500 create important performance implications in the current environment. The S&P 500 is heavily weighted toward technology stocks, where valuation pressures and questions regarding artificial intelligence monetization are creating headwinds. Non-U.S. equity markets feature greater representation in financials, energy, materials, and healthcare sectors. The relative outperformance of these sectors in early 2026 has created favorable conditions for non-U.S. equity portfolios. Should the sectoral rotation continue favoring less technology-heavy portfolios, non-U.S. equities could continue outperforming, creating extended periods of relative underperformance for U.S. equity investors.

The energy sector’s strength in early 2026 reflects geopolitical tensions driving higher oil prices and supporting strong earnings for energy companies. Energy companies, heavily represented in international indexes, have benefited disproportionately from commodity price strength. Materials sector outperformance reflects infrastructure investment and industrial demand supporting commodity prices. These sectors, significantly underweighted in the technology-heavy S&P 500, have delivered superior returns to non-U.S. equity investors.

Geopolitical Environment and Commodity Dynamics

The geopolitical environment has influenced relative equity performance in meaningful ways. Emerging market equities have benefited from stronger commodity prices driven by geopolitical tensions affecting energy supply. The energy and materials sectors are heavily represented in emerging market indexes, creating direct exposure to commodity price strength. This dynamic could prove temporary if geopolitical tensions ease and commodity prices decline. However, the structural demand for energy and raw materials from developing economies suggests that commodity prices may remain elevated relative to earlier periods, supporting emerging market equity performance.

The implications of elevated commodity prices for different equity markets create divergent performance characteristics. Energy-importing developed economies face inflationary pressures and margin compression from higher energy costs, creating headwinds for corporate profitability. Energy-exporting nations and resource-rich emerging markets benefit from elevated commodity prices supporting government revenues, corporate profits, and currency strength. This divergence creates powerful relative performance tailwinds for non-U.S. equities benefiting from commodity price strength.

Earnings Growth Divergence

The earnings growth expectations embedded in different equity market valuations warrant careful analysis to understand whether growth differentials justify valuation gaps. Wall Street expects 23.5% growth for “Magnificent Seven” and 11.8% for the other 493 S&P 500 companies, indicating substantial dispersion within the U.S. market. Non-U.S. markets may be benefiting from more modest but potentially more achievable earnings growth expectations. The divergence in growth expectations creates important implications for performance scenarios where earnings growth falls short of consensus estimates. U.S. technology-heavy portfolios would face more severe valuation compression if growth expectations disappoint relative to non-U.S. portfolios with lower embedded growth expectations.

The risk of earnings disappointment appears elevated given the extraordinarily high growth rates embedded in U.S. technology stock valuations. Even successful technology companies may find it challenging to deliver the 20-25% annual earnings growth rates that consensus expectations appear to assume. Any shortfall from these expectations would trigger valuation compression, creating capital losses for investors at current price levels. Non-U.S. equity markets benefiting from more conservative growth expectations provide greater protection against earnings disappointment scenarios.

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Currency Dynamics

The currency dynamics affecting non-U.S. equity returns deserve careful consideration in understanding whether relative performance can persist. U.S. dollar strength could limit the dollar-denominated returns available to U.S.-based investors from non-U.S. equity investments. If the Federal Reserve cuts rates as anticipated and the dollar weakens, the dollar returns available from non-U.S. equities could be enhanced, providing additional support for outperformance. Conversely, if the dollar strengthens despite rate cuts, the currency headwind could limit the dollar returns from non-U.S. equity investments. The currency outlook remains genuinely uncertain, creating both risks and opportunities for investors considering geographic diversification.

The correlation between U.S. interest rates and dollar strength has weakened in recent periods, reflecting other factors influencing exchange rates including relative growth prospects, capital flows, and geopolitical developments. An environment where U.S. growth slows while international growth remains robust could support dollar weakness even if U.S. interest rates remain elevated. The complex relationship between multiple drivers of exchange rates creates uncertainty regarding currency performance that should be incorporated into geographic diversification decisions.

Technology Competitive Advantages

The technological development differences between U.S. and non-U.S. corporations merit consideration in assessing whether valuation gaps are justified. U.S. corporations, particularly in the technology sector, maintain advantages in areas such as artificial intelligence development, software expertise, and scale of digital platforms. These competitive advantages may justify some valuation premium for U.S. equities. However, the magnitude of the current premium may exceed what the competitive advantages justify, suggesting that mean reversion toward lower valuations is likely. Non-U.S. corporations are also investing in technology development and may be better positioned than earlier assessments suggested to compete globally.

The competitive dynamics in artificial intelligence development, often assumed to be dominated by U.S. companies, appear more competitive than some assessments suggest. Chinese technology companies continue advancing in AI capabilities despite international constraints. European and Japanese corporations are developing specialized AI applications for specific industries. The notion that U.S. companies will enjoy indefinite competitive advantages in all AI-related opportunities appears overstated, reducing the justification for valuation premiums based on AI dominance assumptions.

Portfolio Implications

The implications of current relative valuations for portfolio construction suggest that investors should carefully evaluate their geographic diversification. The extreme underperformance of U.S. equities in early 2026 raises questions regarding whether investor portfolios are overweighted toward domestic equities. The modest outperformance of non-U.S. equities may reverse if U.S. technology stocks stabilize and resume appreciation. However, the maintenance of appropriate geographic diversification provides insurance against extended periods of U.S. underperformance similar to what occurred in early 2026.

Many U.S. investors maintain portfolio allocations heavily skewed toward domestic equities, reflecting home country bias that may no longer be justified. The valuation advantages currently available in non-U.S. markets, combined with the fundamental improvements visible in international corporations, suggest that deliberate rebalancing toward greater international diversification could enhance long-term risk-adjusted returns. The optimal geographic allocation depends on individual convictions regarding relative valuations and growth prospects but should likely reflect meaningful representation of non-U.S. equities.

Federal Reserve Policy and Valuation

The relationship between U.S. equity valuations and the Federal Reserve’s policy trajectory creates important forward-looking considerations. If the Fed cuts rates as anticipated, U.S. equity valuations could expand and support appreciation even if earnings growth disappoints. However, if rate cuts fail to materialize due to persistent inflation, valuations could face additional compression. The Fed’s policy trajectory will likely prove crucial in determining whether current underperformance of U.S. equities persists or reverses over the year ahead.

The tension between valuation expansion from falling rates and valuation compression from earnings disappointment creates genuine uncertainty regarding forward returns. U.S. investors should maintain perspective regarding the multiple factors influencing equity valuations and recognize that near-term performance divergences may reverse as conditions change.

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By: Montel Kamau

Serrari Financial Analyst

9th March, 2026