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Midterm Elections: Stock Market's Secret Weapon?
26 Sep
Summary
- S&P 500 historically gains 95% of the time one year post-midterms.
- Midterm election outcomes do not impact stock market performance.
- Year three of the presidential cycle yields average 14.5% stock returns.

The outcome of midterm elections has historically been a surprisingly accurate indicator of stock market performance over nearly 90 years. Research indicates that the S&P 500 has experienced positive returns in 95% of the instances one year after midterm elections since 1938. Notably, the party in power or the shift in congressional seats has not influenced this trend.
The market's tendency to dislike uncertainty means that once election results are clear, investor confidence often returns, leading to stock outperformance. This period following midterms is historically the strongest for market gains. Since 1950, the year immediately after a midterm election has seen an average annual return of 14.5%.
Conversely, year two of the presidential cycle tends to be the weakest for stocks, with lower average returns and a reduced chance of positive performance. The months leading up to midterms, particularly September, have historically seen market dips. However, October and November in midterm election years have shown robust gains.