JPMorgan Warns S&P 500 Returns to Weaken in H2 2026, Flags Four Major Risks

According to JPMorgan Chase, the strategist team led by analyst Zahin Ov recently warned that S&P 500 index returns are expected to weaken in the second half of 2026 compared to international equities, making it unlikely to replicate the strong performance of the first half. The bank cited four main headwinds: rising market fragility as hedge funds and foreign investors replace traditional government bond buyers, creating volatility; persistent inflation and elevated interest rates pressuring equity valuations; high retail investor participation amplifying downside risk if markets correct sharply; and artificial intelligence-driven job displacement disrupting labor market stability.

JPMorgan noted that equity risk premiums have fallen to post-financial crisis lows, offering limited upside for bond yields to rise without significantly pressuring stocks. The report highlighted that stock assets now comprise one-third of total U.S. household wealth, a historical peak, meaning a market correction could trigger a sharper contraction in consumer spending than in the past.