The 2026 US midterm elections, scheduled for November 3, have generated discussion about their potential impact on financial markets, with experts emphasizing that economic fundamentals and policy outcomes will likely outweigh short-term political shifts.
Historical Market Reactions to Midterms
Historically, US equity markets have shown mixed reactions to midterm elections. Research from JPMorgan Chase indicates the S&P 500 has posted positive returns in the 12 months following every midterm election since 1950, with an average gain of 15%. However, this trend has varied significantly in recent decades. Returns have ranged from 4% to 10% in years like 2006, 2010, and 2014. The 2022 midterm year, marked by a 18.1% decline in the S&P 500, highlights the limitations of historical patterns as predictive tools.
Analysts at Kiplinger highlight that midterm years often see lower returns compared to non-election years. The S&P 500 averaged 7.5% in midterm years versus 12.4% overall. BlackRock’s Bryan Wood and Mark Peterson note the market typically rallies about a month before midterms as polling data clarifies the outcome. Sustained trends depend on broader economic factors like inflation and interest rates. For instance, the S&P 500’s average return in the 12 months following midterm elections has been 15.4% since 1950, according to Capital Group. This figure has fluctuated in recent decades.
Historical data from Morningstar shows the S&P 500 delivered its weakest annual returns in midterm years, averaging 7.5% compared to an overall average of 12.4%. The two most recent midterm years, 2022 and 2018, were the worst for the S&P 500 since 2008, with declines of 18.1% and 4.4%, respectively. However, the index has historically outperformed under unified governments since 1926, as noted by Wang, who compared stock market performance across unified and divided administrations.
Expert Views on Gridlock and Policy Impact
Markets are likely to be influenced far more by inflation trends than by the election outcome, he said. The Federal Reserve’s 2% inflation target currently stands at 3.7%. Bivalkar also noted the telecom sector could emerge as a cash-generating industry if pricing discipline persists and investment intensity moderates.
Mike Bell, Head of Market Strategy at RBC BlueBay Asset Management, emphasized that companies ultimately create value through profits, not through election results.
He added, We do not expect the midterms to have a meaningful impact on markets – political drama, however, is entirely possible.
Similarly, Keith Lerner, chief market strategist at Truist Advisory Services, noted a Democratic-controlled Congress could face opposition to data centers critical to AI. This could impact AI stocks that have driven market gains in recent years.
Markets Focus on Economic Fundamentals
Several sources stress economic conditions, not election results, will drive market outcomes. The economic outlook is more important for markets than the midterms,
said a source cited in Finews. It added developments in AI regulation, inflation, and Federal Reserve policy will have greater influence.
BCA Research posits a 60% chance of Democrats winning the Senate. Prediction markets currently favor a Democratic majority in the House. However, the outcome remains uncertain. Markets will likely focus on post-election developments such as corporate earnings, inflation data, and Federal Reserve policy decisions in the coming months. The Federal Reserve’s decisions on interest rates and inflation control will be critical. Higher oil prices and renewed inflation concerns continue to influence market sentiment.
As of October 25, 2026, the Democrats are favored to reclaim the House, with a 91% chance of victory according to Kalshi. However, the outcome remains uncertain. Markets will likely focus on post-election developments such as corporate earnings, inflation data, and Federal Reserve policy decisions. The 2026 midterm elections could also influence the debate over AI regulation. Data centers critical to AI face potential opposition from a Democratic Congress.