Finance1 min read

US stocks rose after midterms: Will 2026 break it?

By · Published by Everything Blog

In short

The S&P 500 has consistently posted positive returns in the 12 months following midterm elections, averaging a 14.8% gain across 20 cycles since 1946. Midterm years typically suffer deeper intra-year declines averaging 18% as legislative uncertainty peaks, before staging an average 30.6% rebound from their lows. Many investors welcome the frequent outcome of political gridlock, which curtails sweeping legislative changes and dampens policy risks. Even so, experts caution that this sample of 20 cycles cannot guarantee a repeat during the 2026 midterms.

Key points

  • The unbroken streak of post-midterm market gains has persisted regardless of whether the…: The unbroken streak of post-midterm market gains has persisted regardless of whether the sitting president lost control of Congress.
  • Severe intra-year midterm pullbacks have historically offered strong entry points, yieldi…: Severe intra-year midterm pullbacks have historically offered strong entry points, yielding average 12-month rebounds of 30.6% from trough levels.
  • Past market surges were often propelled by broader economic factors like corporate earnin…: Past market surges were often propelled by broader economic factors like corporate earnings and interest rates rather than voting results alone.

Sources checked by our analysis pipeline: 1

The S&P 500 has delivered a positive return in the 12 months following every US midterm election since 1946. Across 20 elections, the average gain was 14.8%, compared with 8.7% for the same period in other years. But this remarkable record does not mean investors can expect another rally after the November 2026 midterms.

US midterm elections have often been followed by strong stock market gains, even when the president's party loses control of Congress. The pattern has survived recessions, wars, political changes and major market crashes. Yet there is an important difference between a historical trend and a reliable investment strategy.

The average gain was 14.8%, while the median return stood at 14.2%. For comparison, the average return over similar 12-month periods across all years since 1946 was 8.7%.

The results are notable because the market did not need a favourable election outcome to rise. In 18 of the 20 midterm elections, the president's party lost seats in the House of Representatives. In nine elections, it also lost control of the House, the Senate or both.

The strongest performance…

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