How Have Stocks Historically Performed After Midterm Elections?

How Have Stocks Historically Performed After Midterm Elections?

Every two years, the midterm elections bring a wave of uncertainty — and a familiar question from clients: “Should I do something with my portfolio?” It’s a fair instinct. Elections feel consequential, the headlines are loud, and markets often get choppy in the run-up. But history offers a reassuring and somewhat surprising pattern: in the modern record, U.S. stocks have tended to perform well in the year after midterm elections. Understanding why — and why that pattern is interesting but not a crystal ball — can help you avoid making an emotional decision at exactly the wrong time.

As a fee-only fiduciary advisor in Columbus, Ohio, I help clients keep elections in perspective and stay focused on their long-term plan rather than the political calendar.

Quick Answer

Historically, the S&P 500 has been positive in the 12 months following midterm elections in every cycle of the modern record, with average one-year returns often cited in the 12–16% range depending on the data set and starting year. A few forces may contribute: markets dislike uncertainty, and the resolution of the election removes some of it; markets have often favored the “gridlock” of divided government; and midterm years have frequently started from weaker points, making the rebound look strong. But the sample is small, correlation isn’t causation, and past patterns don’t predict the future — which is why I don’t recommend repositioning a portfolio around an election.

Key Takeaways

• Historically, U.S. stocks have been positive in the 12 months after every midterm in the modern record.
• Average one-year post-midterm returns are often cited around 12–16%, depending on the data set.
• Possible drivers: reduced uncertainty, a market preference for divided government, and weak starting points before the election.
• The pattern is interesting, not predictive — the sample is small and correlation isn’t causation.
• The real lesson is behavioral: elections tempt investors into decisions that work against them.
• A plan built for a range of outcomes beats one that reacts to any single election.

Table of Contents

1. What does the history actually show?
2. Why might stocks do well after midterms?
3. Why you shouldn’t read too much into it
4. The real risk: letting elections drive decisions
5. What to do instead
6. How I help
7. FAQs

What Does the History Actually Show?

The headline statistic is striking: across the modern record, the S&P 500 has been higher 12 months after every midterm election — a streak commonly cited as running back to the 1940s. Different sources count it slightly differently (some start in 1950, some use a broader window back to the 1930s), but the broad finding is consistent: the year following a midterm has been reliably positive, and often strongly so.

On the average return, estimates vary by data set:

Researchers also note that the fourth quarter of a midterm year and the two quarters that follow have historically been among the stronger stretches of the four-year presidential cycle. It’s one of the more durable seasonal patterns in market history — which is exactly why it gets so much attention every two years.

Why Might Stocks Do Well After Midterms?

No one can say for certain, but a few explanations are commonly offered:

• Uncertainty resolves. Markets dislike the unknown. Before an election, the range of possible outcomes is wide; once the results are in, one source of uncertainty is removed, and markets often respond to that clarity — regardless of who won.
• Markets have favored divided government. Historically, markets have often done well under a divided Congress, where sweeping legislative change is less likely. Predictability — knowing the rules aren’t about to shift dramatically — tends to be welcomed by investors.
• Weak starting points. Midterm years have frequently been bumpy, with markets selling off into the fall. A strong “after” number partly reflects a weak “before” — the rebound looks impressive in part because of where it started.

Notice that none of these depend on which party wins. The pattern shows up across administrations of both parties, which is a strong hint that it’s about the calendar and the economy, not a particular political outcome.

Why You Shouldn’t Read Too Much Into It

Here’s where I have to put on my fiduciary hat. The pattern is real and interesting, but it is not a reason to change your investments, for several reasons:

• The sample is tiny. There have only been about 19 to 31 midterm cycles in the data, depending on how far back you go. With so few observations, a single contrary outcome wouldn’t be surprising — and would break the “streak” overnight.
• Correlation isn’t causation. Some of the strongest post-midterm rebounds followed major economic episodes — an oil shock, a bear-market bottom, a rate cycle — that also drove the weak pre-election period. The election calendar may be along for the ride, not in the driver’s seat.
• Averages hide wide variation. A 14% average is made up of years that were far higher and years that were far lower. If you have near-term cash needs, the average is not a plan.
• Calendar-based timing has a poor track record. Strategies that try to trade around seasonal patterns tend to disappoint once you account for taxes and transaction costs.

In short: it’s a fun fact that happens to align with a reassuring message, but it is not a forecast. Past performance is not indicative of future results.

The Real Risk: Letting Elections Drive Decisions

If there’s one lesson worth taking from all of this, it’s behavioral. The biggest danger around an election usually isn’t the market — it’s the temptation to do something because of how the results make you feel.

Every cycle, some investors move to cash because they’re worried about who won, or pile in because they’re optimistic. Both are making a long-term decision based on a short-term political reaction. And the historical record is unkind to that instinct: an investor who sold out of stocks after recent elections — in either direction — would often have missed exactly the kind of gains the “after midterms” pattern describes. Your ballot and your portfolio are two different things, and they’re best kept separate.

What to Do Instead

The healthier approach is the un-dramatic one:

• Stay invested according to a plan built for your goals, not the news cycle.
• Make sure your allocation fits you — your time horizon, your income needs, your comfort with volatility — so you don’t feel the urge to react.
• Keep cash and bonds set aside for near-term spending, so a volatile stretch never forces you to sell at a bad time.
• Judge the plan by your life, not the headlines. The question that matters isn’t “who won?” — it’s “am I still on track for what I’m trying to do?”

A portfolio built to handle a range of outcomes doesn’t need to be repositioned every two years. That’s the whole point of having a plan.

How I Help

I help clients keep elections — and election-year noise — in their proper place. That means building a portfolio aligned with your goals and risk tolerance, holding enough in reserves that you’re never forced to sell in a downturn, and having a plan clear enough that political headlines don’t trigger the urge to tinker.

When clients ask whether they should change course because of an election, my answer is almost always the same: let’s look at your plan, not the polls. The evidence-based approach — stay diversified, keep costs low, and stick with a strategy you can hold through good markets and bad — has served investors far better over time than reacting to any single election. My job is to help you tune out the noise and stay focused on what actually moves your plan forward.

FAQs

Do stocks really always go up after midterm elections?
Historically, the S&P 500 has been positive in the 12 months following every midterm in the modern record. But “historically always” is not “guaranteed to continue” — the sample is small, and past performance doesn’t predict future results.

Does it matter which party wins for the market?
The post-midterm pattern has shown up across administrations of both parties, which suggests it’s more about reduced uncertainty and the economic cycle than any particular political outcome. Markets have historically done reasonably well under various configurations of government.

Should I change my investments based on the election?
For most diversified, long-term investors, no. The evidence doesn’t support repositioning a portfolio around an election, and calendar-based timing tends to disappoint after taxes and costs. A plan built for a range of outcomes is more reliable.

Why do markets seem to like “gridlock”?
Divided government tends to make sweeping legislative change less likely, which can mean more predictability. Markets generally prefer knowing the rules aren’t about to shift dramatically — though this is a tendency, not a rule.

What should I actually focus on instead?
Your own plan: an allocation that fits your goals and risk tolerance, adequate cash and bond reserves for near-term needs, and the discipline to stay invested. Those have far more impact on your results than who wins an election.

Please use the below link to schedule a call with Jim.

https://calendly.com/jimblue/blue-advisors-meeting

By James Blue, Fee-Only Advisor | Blue Advisors

James Blue is the founder of Blue Advisors, a fee-only financial planning and investment management firm based in Columbus, Ohio.

This content is provided for informational and educational purposes only and should not be construed as personalized investment, tax, or legal advice, or as a prediction or recommendation. It is not political commentary or an endorsement of any party, candidate, or policy. Historical market statistics are drawn from third-party data, vary by source and time period, and are provided for context only. All investing involves risk, including the possible loss of principal; past performance is not indicative of future results. The views expressed are those of the author as of the date published and are subject to change without notice. Blue Advisors is a fee-only registered investment advisory firm. Advisory services are offered only pursuant to a written advisory agreement and to clients in the State of Ohio, the Commonwealth of Pennsylvania, and other jurisdictions where Blue Advisors is properly registered or exempt from registration. Readers should consult with their financial advisor, tax professional, or attorney before making financial decisions.