Prediction: The Stock Market Will Soar After Midterm Elections

JPMorgan research cited in the article says the S&P 500 has been positive in the 12 months after every midterm election since 1950, with an average gain of roughly 15%; the author expects post-election performance to be favorable but notes recent gains have often been below that average. Kalshi odds cited put Democrats at more than 91% to reclaim the House and 67% to take the Senate. The article argues potential political gridlock could support stocks, while a Democratic-controlled Congress could weigh on AI-related data-center policy; a quicker end to the Iran war could also ease energy prices and inflation.

Analysis

The seasonal midterm pattern is a weak standalone signal: a positive 12-month endpoint does not imply a smooth post-election rally, and the small historical sample is confounded by earnings, rates and starting valuations. The more investable channel is a change in policy uncertainty and energy risk premium—not the election result itself. A congressional shift could constrain policy or increase oversight, but it cannot be assumed to end military action or reopen a shipping route; verify actual de-escalation and physical flows before trading the oil thesis.

Near term, election-related uncertainty may fade, but much of any predictable outcome can already be reflected in positioning. Over 1–3 months, watch crude futures structure, inflation breakevens, earnings revisions and market breadth: falling energy risk can support rate-sensitive and fuel-consuming sectors, while a renewed oil shock would reverse that benefit. Over 6–18 months, data-center opposition is more likely to create project-by-project permitting and power-availability friction than an immediate blanket hit to AI earnings. That could shift capex toward permitted regions and grid capacity rather than eliminate demand; broad semiconductor shorts would be a blunt expression.

Contrarian view: the bullish narrative treats gridlock as inherently market-friendly, but it can also delay permitting, infrastructure investment and fiscal decisions. The historical average is not a forecast, and strong index returns could remain concentrated even if the median stock lags.

Key Decisions for Investors

• Do not add broad equity exposure solely on the post-midterm historical average. Treat the vote as a volatility catalyst; reassess SPY exposure after the result against breadth, earnings revisions and implied-versus-realized volatility. A defined-risk SPY call spread is only worth evaluating if volatility falls while breadth and earnings estimates remain firm; otherwise, no election-driven trade.
• Make any oil-relief trade conditional on verified de-escalation and sustained improvement in Hormuz shipping, not congressional probabilities. If confirmed, consider a small long JETS / short XLE pair for the fuel-cost and crude-risk-premium divergence. Falsifier: renewed disruption or a sustained rebound in crude; this pair also carries substantial airline-specific risk.
• Keep AI exposure selective rather than shorting semiconductors on a generalized data-center policy concern. Track permitting delays, utility interconnection queues and hyperscaler capex guidance over the next 1–3 quarters; broaden hedges only if these indicators translate into project cancellations or capex cuts.