Will the Republican Party win the CA-05 House seat?

The Republican contract has surged 20 cents over seven days to 83¢, reflecting strong confidence in GOP performance in CA-05, though the $0 24-hour volume suggests this momentum may not be actively traded. The extreme 891% implied yield on the No side indicates severe mispricing or illiquidity risk, with only $12.7k open interest supporting a market 200 days from resolution. The 5/10 Cliff Risk Index combined with the massive yield asymmetry warrants caution—this appears to be a thin, potentially unstable market where the Republican consensus may not reflect true uncertainty.

Resolution rules

This market will resolve according to the party of the candidate who wins the CA-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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/).

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