The Midterm Market Effect

mid-term

US midterm elections take place on Tuesday, November 3. Currently, the Republican party is in control of the House and the Senate. This vote will essentially be a referendum on the Republican party’s body of work. It’s likely the composition of either the House or the Senate will change. The question for investors is simple: Does this matter for your money?

What follows is a historical look at equity market performance under a Republican president and different compositions of Congress. Exhibit 1 illustrates equity market returns under a Republican president with differing congressional control.

See more: Midterm Elections: Potential Political Shifts and Market Volatility

Exhibit 1: Midterm Returns and Congressional Control Under a Republican President

The Congressional Outcome Barely Moved 12-Month Returns

Average S&P 500 price return after Republican-president midterms, by resulting congressional control

Small samples: GOP both reflects a single midterm (2002). Forward returns from the election-day close in trading days (12M = 252). Sources: Franklin Templeton Institute, S&P Global, Bloomberg, Macrobond. As of October 5, 2026. There is no assurance that any estimate, forecast or projection will be realized. Indexes are unmanaged and one cannot invest directly in an index. They do not reflect any fees, expenses or sales charges. Past performance does not predict future returns.

The key takeaway is that one-year forward S&P 500 returns were positive under all combinations of executive branch leadership under a Republican president going back to 1954.

Exhibit 2 digs deeper and shows a breakdown of sector performance.