What History Says About Stocks After Midterm Elections, and Its Limits
As the 2026 midterms arrive, several outlets point to a historical pattern: the S&P 500 has averaged gains of nearly 14% in the year after the vote. Here's what that figure means and what it doesn't tell you.
For educational purposes only. Not investment advice.
- Several outlets looked at how the stock market has behaved after past US midterm elections as the 2026 vote got underway.
- KuCoin and BigGo Finance report that the S&P 500 has averaged a gain of roughly 13.7% to nearly 14% in the year after midterms.
- An average hides big differences between individual years, and the number of past midterms is small.
- Historical patterns give useful context, but they don't predict what markets will do next.
Every two years, around election time, the same question comes up in financial news: what happens to the stock market after Americans vote? With the 2026 US midterm elections underway, several outlets have gone back to the historical record to look for an answer.
The pattern they describe has a clear upward tilt. But a historical average is not a forecast, and it helps to understand both what the numbers show and what they leave out.
What the coverage says
CNBC, Chase Bank and USA Today each ran pieces on November 2, 2026, looking at how stocks have behaved after past elections. Their headlines focus on "what history shows," meaning they're looking back at the record, not predicting what comes next.
Two outlets put a number on it. KuCoin reports that historical data shows the S&P 500 has risen an average of 13.7% after US midterm elections. BigGo Finance, in a story noting that the midterms have begun, describes the S&P 500 as averaging a gain of nearly 14% in the year after the vote. Both figures describe the same historical average.
USA Today asks the question in a more open way: "Do stocks rise or fall after elections?" That framing is a reminder that the answer has varied from one election to the next.
Background: why midterms might matter to markets
Midterm elections fall halfway through a president's four-year term. Background: every seat in the House of Representatives is on the ballot, along with about a third of the Senate. The results can shift which party controls Congress, and that affects which laws on taxes, spending and regulation have a realistic chance of passing.
Market commentators usually offer a few general explanations for why stocks have tended to do well after midterms. One is that uncertainty drops once the votes are counted. Investors no longer have to guess who will control Congress. Another is the idea that a divided government, where neither party controls everything, leads to fewer big policy changes, and some investors see that as predictable. These are common theories, not proven rules.
Why an average can mislead
An average of roughly 14% doesn't mean the market gained about 14% after every midterm. Averages combine strong years and weak years into one number. A few very good years can pull the figure up even if other years were flat or negative.
The sample is also small. Midterms happen only once every four years, so even several decades of history add up to a fairly short list of examples. With so few data points, a pattern can show up partly by chance.
Elections are also only one of many forces acting on stocks. Interest rates, inflation, company profits, global events and recessions can easily outweigh whatever effect an election has. Professionals often say that past performance does not guarantee future results, and that applies here too.
Why it matters for everyday people
Many Americans own stocks indirectly through 401(k) plans, IRAs or index funds, and many of those funds track the S&P 500. So headlines about election-year market patterns can feel personal.
These stories are best read as context. They explain why commentators talk about elections and markets together, and they show that, historically, midterms have not usually been followed by market trouble. They can't tell anyone what the market will do over the next twelve months.
| Publisher | Their angle | Original |
|---|---|---|
| CNBC | Looks back at the S&P 500's historical record after midterms | Read ↗ at CNBC |
| Chase Bank | Bank explainer on how midterms affect stocks, based on history | Read ↗ at Chase Bank |
| KuCoin | Gives the specific figure of a 13.7% average rise after midterms | Read ↗ at KuCoin |
| BigGo Finance | Ties the start of the 2026 vote to a nearly 14% historical average gain | Read ↗ at BigGo Finance |
| USA Today | Openly asks whether stocks rise or fall after elections | Read ↗ at USA Today |
Words to know
- S&P 500
- A stock market index that tracks about 500 of the largest US public companies. It is often used as a quick measure of how the overall US stock market is doing.
- Midterm elections
- US federal elections held halfway through a president's four-year term. All House seats and about a third of Senate seats are on the ballot.
- Divided government
- A situation where different political parties control the White House and at least one chamber of Congress, which usually makes major new laws harder to pass.
- Historical average
- A single number that combines results from many past periods. It can hide wide swings between the best and worst cases.
Questions readers ask
Does this mean the stock market will go up about 14% after the 2026 midterms?
No. The figure is an average of past results, not a prediction. Individual years have varied, and many factors besides elections move markets.
Why would an election affect stock prices at all?
Elections can change which party controls Congress, and that shapes tax, spending and regulatory policy. Commentators also say markets often welcome the drop in uncertainty once the results are known.
How does this affect my retirement account?
Many 401(k)s and index funds hold S&P 500 companies, so the index's performance matters to a lot of savers. Still, election-year patterns are context, not a reliable guide to future returns.
For educational purposes only. Not investment advice. We do not recommend any stock, fund, broker or trading platform. Headlines are sourced from Google News · Business; every story links to the original publishers.