Don't Let Political Emotions Drive Your 401(k) Decisions After the 2026 Midterms
Source: "How 2026 midterm election results historically affect 401(k) returns | Fox News." November 6, 2026. www.foxnews.com
The Gist
Even though Democrats just won Congress and that combination with a Republican president has historically been weak for stocks, the author says not to panic and sell. Stocks have usually done well in the year after midterms, and what really moves markets is earnings, interest rates, and the economy rather than who controls Congress. History offers perspective, not a guarantee, so don't let politics drive your retirement investing.
Conclusion
Investors should not make emotional, politically motivated changes to their 401(k) portfolios in response to the Democratic takeover of Congress, because history shows political outcomes are a weak guide to returns and post-midterm periods have typically been strong for stocks.
Premises
- Historically (1953-2025), the S&P 500 has averaged only 4.9% annually under a Republican president with a Democratic House and Senate, the lowest of six political configurations, so the current configuration is not favorable on its face.
- Since 1950, the S&P 500 has averaged a 15.4% gain in the 12 months after midterm elections, and every such 12-month period was positive.
- Post-election gains may occur because markets dislike uncertainty, and the end of an election removes some of it.
- Stock market performance is driven mainly by corporate earnings, interest rates and inflation, taxes, and government spending/debt, rather than by partisan control of Congress per se.
- Historical political averages do not prove that congressional control caused those returns, and they are not predictions for any specific year (a 4.9% average does not mean 4.9% in 2027; a 15.4% average does not guarantee a rally).
- Investors commonly confuse political disappointment with investment strategy, selling stocks or moving to cash because they dislike the president or Congress, while the market keeps moving.
Assumptions
- Historical patterns, while not predictive, are informative enough to counsel against drastic portfolio changes.
- Most 401(k) investors are long-term investors for whom market timing based on politics is likely to hurt rather than help.
- Selling in response to political events typically means missing subsequent market gains.
- Economic fundamentals (earnings, rates, inflation) are more important and more predictable drivers of returns than election outcomes.
- The small sample of historical political configurations and midterm cycles is meaningful enough to cite as perspective.
- Emotional reactions to political outcomes are a primary driver of poor investor decisions.