Election season has a Bitcoin glow — but the halving might be the real ringmaster

Bitcoin $BTC $84,459.46 has averaged a 53.7% gain in the 12 months after three U.S. midterm elections, according to data analyzed by CoinDesk. The returns measure the percentage rise from the daily close (00:00 UTC) on Election Day to the close on the same date a year later. The 2010 midterm produced a 1,579% surge, but the market was fringe and too small then for that figure to be reliable. Excluding 2010, the average gain was 53.7%, compared with a 15.17% average annual gain for the S&P 500 in the year after midterms since 1950.

The historical pattern comes as $BTC trades around $80,000 after bouncing more than 35% since bottoming below $60,000 in June. Bitcoin’s broader four-year cycle, built around the mining reward halving, may also influence post-election performance. After each of the four halvings to date, $BTC rallied sharply, peaked 12 to 18 months later and then slid into a bear market. Those downturns occurred in midterm years — 2014, 2018, 2022 and now 2026 — placing the current rebound within a cycle that could also shape price action after Nov. 3.

The S&P 500 has averaged a 15.17% gain in the year after midterms since 1950, according to Hartford Funds, compared with a 7.30% gain in all other years. The 15% average cited for post-midterm performance and the broader historical record point in the same direction, although the number of Bitcoin election cycles remains limited.

The 2026 elections could affect how President Donald Trump operates during his final two years in the White House. If Democrats win one or both chambers of Congress, debates over the unresolved federal debt limit may intensify. Trump’s push for $350 billion in mandatory defense funding may face legislative hurdles, according to Brookings, while Democrats could use those hurdles to restrict funding for Middle East escalations.