Key Takeaways
- The S&P 500 has completed eight consecutive weeks of advances, marking its strongest streak since 2023, yet market analysts are flagging potential summer weakness.
- Historical data shows midterm election years produce average losses of 2.8% for the S&P 500 between April and September, according to Dow Jones Market Data.
- Oil prices approaching $110 per barrel combined with the 10-year Treasury yield reaching a 12-month peak of 4.61% are creating headwinds.
- Semiconductor stocks including Sandisk, Micron, and AMD have experienced declines ranging from 9% to 14% across five trading sessions amid macro concerns.
- According to Deutsche Bank analysts, a meaningful market correction would require sustained oil disruptions, contractionary economic indicators, or aggressive Federal Reserve policy tightening.
The S&P 500 has just concluded an impressive eight-week winning streak — the longest such run since 2023. All three primary market indexes closed in positive territory on Friday, recording weekly advances across the board.
Yet as we move toward June, market strategists are raising yellow flags. Historical patterns reveal that summer months during midterm election cycles have consistently challenged equity markets.
Data from Dow Jones Market Data shows the S&P 500 has historically declined by an average of 2.8% from late April through late September during midterm years. By contrast, the index has climbed 3.7% through May this year.
Historical midterm summers have witnessed some dramatic market declines. The S&P 500 plummeted over 25% in 1930, approached a 30% drop in 1974, and tumbled 24% in 2002 — all occurring during midterm election years. Even when these extreme examples are excluded, the average performance for this timeframe remains nearly neutral at just 0.006%.
The Cboe Volatility Index is currently trading at 16.7%. Charlie McElligott, a strategist at Nomura, has highlighted this level as unusually elevated for a market experiencing such a powerful upward trajectory, indicating potential underlying vulnerability.
According to Jeffrey Hirsch of the Stock Trader’s Almanac, midterm election years typically redirect investor attention from corporate earnings toward political uncertainty. While he doesn’t anticipate a bear market, he suggests the market could become “sideways choppy” throughout the summer months.
Jay Hatfield from Infrastructure Capital Advisors identifies a broader seasonal trend: markets typically demonstrate strength during earnings reporting periods and weakness between them.
Crude Oil Surge and Yield Pressure Compound Market Concerns
Meanwhile, global equity markets have experienced selling pressure over the past fortnight due to escalating tensions involving Iran.
Brent crude oil has rallied toward $110 per barrel, fueled by supply constraints around the Strait of Hormuz. This surge is driving gasoline prices higher just as Memorial Day weekend travel approaches.
The 10-year US Treasury yield has advanced to a fresh 12-month high of 4.61%. Elevated yields enhance the relative attractiveness of fixed-income investments versus equities while simultaneously increasing corporate borrowing expenses.
The convergence of persistent inflation readings and ascending yields has triggered profit-taking in technology and semiconductor sectors. Sandisk and Micron have each declined approximately 14% across five trading sessions. AMD has fallen roughly 9% during the same timeframe.
Henry Allen, a strategist at Deutsche Bank, indicated that a significant market pullback would necessitate at least one of three catalysts: prolonged oil supply shocks, definitively contractionary economic indicators, or aggressive monetary policy tightening from central banks. He observed that while oil prices remain elevated, none of these conditions have fully materialized.
Nevertheless, Hatfield identified a potential positive scenario. Should Democrats capture the House while Republicans maintain Senate control, the resulting divided government could actually support markets. Historical evidence suggests legislative gridlock tends to benefit equities by minimizing the probability of substantial policy shifts.
“Gridlock is generally great for stocks,” Hatfield said.
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