PolymarketCloses · in 15 daysPart of MO-04 House Election Winner →

Will the Democratic Party win the MO-04 House seat?

Current price

3.45¢

+0.3¢ · 24h

Implied probability 3.45%
$30.8K total volume · YES/NO

7-day range 2.55–5.8¢

Low gotcha risk

Gotcha risk — resolution-rule assessment

Show full assessmentShow less

This market resolves on the outcome of the 2026 Missouri 4th Congressional District election. The primary resolution relies on a consensus of credible reporting once all House races are conclusively called, with a definitive fallback to official Federal Election Commission certified results if any ambiguity arises. Clear guidelines are provided for party attribution, explicitly specifying how third-party or independent candidates will be treated based on their ballot label or stated caucus intentions.

Wording ambiguity
Low
Source discretion
Med
Timing risk
Low
Exceptional clauses
Low

Liquidity

Medium tradability

Moderate book at the daily check: a spread over 1¢, or less than $50K within 5¢ of the mid. Larger orders may move the price, so check the book before sizing.

Book depth $17K within 5¢ of mid
Price history range

Price history

Market price
2.5¢3¢3.5¢4¢22:3106:2914:2822:26
2¢4¢6¢8¢Oct 12Oct 15Oct 17Oct 19
2¢4¢6¢8¢Sep 23Oct 2Oct 11Oct 19

Why it moved

No big moves in the last 7 days.

Resolution rules

This market will resolve according to the party of the candidate who wins the MO-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Rules history

Rules history is not displayed yet.

Market explained

This market measures whether the Democratic Party will win Missouri's 4th congressional district House seat in the 2026 midterm elections. Candidates without a major party ballot listing are assigned based on their most recently expressed intent to caucus.

How it resolves

The market resolves Yes if a candidate affiliated with the Democratic Party wins the MO-04 seat in the 2026 midterm elections. Party affiliation is determined by ballot listing, identifiable affiliation, or expressed intent to caucus at the time all House races are conclusively called. The market resolves No if a candidate from another party wins the seat. Resolution is determined by a consensus of credible reporting, or by official Federal Election Commission results if ambiguity exists.

Key dates

  • Election Day: — Date of the 2026 midterm elections.

Resolution source

Consensus of credible reporting, with the Federal Election Commission as the fallback source

AI-generated analysis · google/gemini-3.7-flash ·

Community forecast

Community forecasting arrives with the forecast tools.