MS-01 House Election Winner: Odds & Probability

The market’s assessment of a Republican win in MS-01 has stayed near-certain. It sits at 96.0%. The contract resolves to the party of the winning candidate in Mississippi’s 1st congressional district for the 2026 U.S. House elections, which are held on Nov 4, 2026. A candidate’s party is determined by their ballot-listed affiliation at the time the election is conclusively called. If no major-party label appears on the ballot, the market looks to the party with which the candidate most recently expressed an intent to caucus. Resolution relies on a consensus of credible reporting; should the result be ambiguous, the market defaults to the official Federal Election Commission tally. The primary formal trigger is the election itself on Nov 4, 2026, when votes are cast and winners declared. Once a consensus of credible reporting names a winner, or the FEC releases official figures in a contested case, the market will resolve. In the interim, any development that alters the range of possible outcomes—such as candidate filings, primary results, or shifts in the competitive landscape—could adjust the market’s view. But only the final election result, as defined by the resolution rules, will determine settlement.