Do Elections Really Boost Stocks? What History Shows
MarketWatch argued on Oct. 19, 2026 that the midterm elections are likely to become a strong tailwind for the stock market.
The idea, in an article titled 'Why the midterm elections are likely to become a strong tailwind for the stock market', is that stocks do much better in the six months after midterms than after other votes. MarketWatch
The numbers go back a long way. Since 1930, the S&P 500, a basket of 500 large U.S. companies often used to track the market, gained an average of 5.6% in the fourth quarter of midterm years. That compares with a 2.9% average for all fourth quarters. MarketWatch
Other time frames point the same way. The S&P 500 averaged a 7% return in the period around midterm elections, based on data from Bloomberg and Deutsche Bank. Yahoo Finance It averaged 14.1% in the six months after midterms, according to BlackRock. BlackRock And it was higher 12 months after Election Day in all nine midterm cycles since 1990, with an average total return of 16.9%. YCharts
That fits the usual four-year pattern. Years before a presidential election, like 2023, are the best for stocks. Midterm years, like 2022, are the worst, according to Carson Group. Election years gain 7.3% on average. Carson Group
U.S. stocks were near record highs on Sept. 9, 2026, even with recent swings in the bond market. Measures of volatility, or how jumpy prices are, were near 2026 lows. Reuters Traders have bet more than $220 million on the 2026 midterms so far, compared with $92 million for all of 2024. Reuters More than 100 million people are likely to vote in 2026. Reuters
The broader context here is what those averages can and cannot tell savers. A 9-for-9 record since 1990 and a 14.1% average bounce are linked by strategists to the same causes: less fear of extreme policy surprises, a clearer path for government spending, and bets that divided government will limit big new business rules. For options traders, high stock prices plus low expected swings and heavy sensitivity to interest rates left little cushion for a surprise.
In my view, treat the calendar like a weather forecast, not a promise. Past fourth-quarter strength came with Federal Reserve rate cuts, changes in profit forecasts, and drops in the extra return for holding long-term bonds. Those will not repeat on time. With stocks high and volatility low, the market is priced for a smooth result, which leaves protection across markets, bets on interest rates, and crowded trades as more important than the vote date itself.
