As the United States approaches its midterm elections, financial markets appear largely indifferent to the political event, instead focusing on broader economic and geopolitical factors. While the elections remain a key topic among many Americans, market analysts increasingly point to inflation, interest rates, technological developments, international conflicts, and commodity prices as the primary drivers of recent market activity.
Historically, financial markets tend to anticipate political outcomes well in advance, incorporating expectations into asset prices. The prevailing assumption, supported by polling and prediction markets, is that the party controlling the White House generally loses seats in Congress during the midterms. With Republicans currently holding the presidency, markets expect Democrats to retain control of at least one chamber, leading to potential legislative gridlock. While such a scenario might frustrate policymakers, investors often view gridlock favorably as it limits political interference in economic affairs.
Nonetheless, research suggests the relationship between political control and market performance is not straightforward. A study covering data since 1930 found that in the year following midterms where the president’s party lost control of the House, the S&P 500 rose an average of 8.8 percent. Conversely, the index rose an average of 14 percent following all midterm elections, indicating that politics alone do not consistently dictate market returns.
Political investment funds also illustrate this disconnect. For this year through early November, an exchange-traded fund (ETF) promoting investment aligned with Republican political views gained 11.2 percent, while a Democratic-focused ETF rose 11 percent. Both lagged behind the broad S&P 500 benchmark, which returned 13.8 percent including dividends. These discrepancies partly result from sector allocations, such as the Republican-oriented fund’s exclusion of major technology companies that have delivered strong returns in 2023.
Technology, particularly developments in artificial intelligence (AI), has emerged as a dominant influence on market dynamics. The recently filed public offering documents of Anthropic, a leading AI startup, underscore the sector’s rapid growth and significance. The company reported $16.3 billion in revenue for the first half of the year, representing a nearly 14-fold increase from the previous year, while also posting substantial losses. The market’s embrace of AI is evident in the performance of chipmakers Nvidia and Advanced Micro Devices, whose profits have buoyed stock prices. However, concerns about the sustainability of AI spending and associated debt levels have contributed to rising market volatility.
In parallel, bond markets have experienced notable upward pressure on yields, with 10-year Treasury rates exceeding 5.3 percent in September, up from 4.2 percent earlier in the year. European sovereign bonds have weakened amid social unrest and mounting debt concerns, leading investors to seek relative safety in U.S. Treasuries. The Federal Reserve has maintained its policy rate at 3.75 to 4 percent but is expected to implement further rate hikes in the coming months to address inflation, which remains above the central bank’s 2 percent target.
Higher interest rates are increasing borrowing costs across consumer and business credit markets, dampening economic growth prospects. Rising rates also pose risks to equity valuations, as increased financing expenses pressure corporate profits and higher-yielding bonds become more attractive alternatives for investors.
A key geopolitical factor influencing financial conditions this year has been the conflict involving Iran. Following U.S. and Israeli attacks on Iran in late February, energy prices and inflationary pressures intensified, pushing oil prices higher and buoying energy stocks, which have surged over 50 percent in 2023. The trajectory of this conflict—and its potential escalation post-midterms—remains uncertain, with future developments likely to affect market sentiment.
Overall, while political outcomes and international events cannot be entirely discounted, experts caution against overemphasizing their influence on investment returns. Historical patterns and current market trends suggest that broad-based, diversified market participation remains a prudent strategy for investors navigating the complex landscape ahead.
