2026 Midterm Election Prediction Market Data

Consensus probabilities for every 2026 midterm race — Senate, House, and governor — from regulated prediction markets.

Summary: Prediction market consensus probabilities for every 2026 midterm election race. Senate, House, and governor races tracked with cross-platform data.

The Midterm Election Data Landscape

The 2026 midterm elections represent one of the largest political prediction market events of the cycle. With 34 Senate seats, all 435 House seats, and 36 governor races on the ballot, prediction markets generate thousands of individual contracts — each with its own probability, volume, and cross-platform dynamics.

What Consensus Data Captures

For each race, Meridian Edge aggregates prices from regulated prediction market platforms into a single consensus probability:

Individual race probabilities: Consensus win probability for each candidate in every tracked race
Chamber control: Aggregate probability of which party controls the Senate and House
Cross-platform divergence: Races where platforms disagree significantly — often signaling rapidly changing dynamics
Historical trend: How probabilities have shifted over weeks and months

124 Midterm Market Pages

Meridian Edge maintains 124 dedicated pages covering individual midterm races and aggregate outcomes. Each page shows the current consensus, source count, confidence level, and trend data.

Access the Data

REST API: GET /api/v1/consensus?vertical=politics — API reference
Python SDK: client.consensus(vertical="politics") — Python guide
Dashboard: Live dashboard with political filters

Why Prediction Markets Matter for Elections

Academic research has shown that prediction markets are among the most accurate forecasting tools for political outcomes, often outperforming polls and pundit consensus. They aggregate information from participants who have financial stakes in accuracy, creating strong incentives for informed pricing.

Cross-platform consensus adds another layer of accuracy by pooling data from multiple independent marketplaces with different participant populations.

Related Coverage

Frequently Asked Questions

What midterm election markets does Meridian Edge track?

Meridian Edge tracks consensus probabilities for Senate, House, and governor races in the 2026 midterms, as well as aggregate chamber control probabilities. Data is aggregated from multiple regulated prediction market platforms.

How accurate are prediction markets for elections?

Academic research shows prediction markets are among the most accurate forecasting tools for political outcomes. Cross-platform consensus further improves accuracy by aggregating data from multiple independent sources. Past accuracy does not guarantee future results.

Is election prediction market data investment advice?

No. All data is for informational purposes only and does not constitute investment, financial, or trading advice. Prediction market participation involves risk of loss.

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