AI-driven market dispersion favors active selectivity

Markets may appear calm on the surface, but the underlying picture tells a different story. While headline equity volatility remains subdued and major indices continue to show resilience, stock- and sector-level volatility have risen sharply, while correlations among major stocks have fallen to unusually low levels.

Figure 1 highlights a growing divergence between index-level behavior and what is happening beneath the surface. Even amid recent geopolitical and energy-related shocks, broad market volatility has remained relatively contained. However, we see a growing performance gap between sectors and individual companies, suggesting volatility has become increasingly dispersed rather than broad-based.

What are the investment implications?

• Index calm does not necessarily mean low risk. Concentration and single-stock exposure may matter more than index volatility in an environment where underlying dispersion continues to widen. Investors focusing solely on headline market measures could overlook risks developing beneath the surface.
• Greater dispersion may expand the opportunity set for active investors. Lower correlations and wider performance gaps across companies have increased differentiation within the market, making company fundamentals and security selection increasingly important performance drivers.
• Broader market leadership may provide a healthier backdrop for equities. With more sectors and companies contributing to returns, the market appears less dependent on a narrow group of stocks than in recent years, potentially improving the quality and breadth of market participation.

What are we watching?

• Earnings expectations. Corporate earnings forecasts have continued to move higher despite macroeconomic uncertainty. We are watching whether companies can continue to meet these increasingly demanding expectations.
• Market structure and leveraged ETF adoption. The growing use of leveraged products may be contributing to higher sector-level volatility and wider performance dispersion, which could further amplify differences across market segments.
• AI-driven dispersion. Performance differences across AI-linked businesses continue to widen as investors reassess the likely winners and losers of the next phase of AI adoption. We are closely monitoring whether these gaps continue to expand and how they could influence market leadership.