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

Prediction markets currently give a 75% probability that Will the Republican Party win the AZ-05 House seat?. This contract trades at 75¢ on Polymarket, closing November 3, 2026. The Republican lean in AZ-05 has softened notably, with the price declining 5 cents over seven days to 81¢, suggesting either shifting fundamentals or profit-taking from early backers.

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75¢
Bid/Ask 74/75¢·Spread 1¢·Vol $235.26·OI $21,280.029·Closes Nov 3, 2026·195d remaining
0xcc842c2fed3a0714caf0a408fa4fd7a3d0cf36c57adc02d0830a3612d4373a14
7-day price50 snapshots · 21 regime
86¢75¢ current
Apr 1543¢Apr 21

Analysis

4d ago

The Republican lean in AZ-05 has softened notably, with the price declining 5 cents over seven days to 81¢, suggesting either shifting fundamentals or profit-taking from early backers. The extreme 778% implied yield on the "No" side contrasts sharply with the 42.8% yield on "Yes," indicating the market heavily discounts a Democratic upset despite relatively thin $12,789.70 open interest and modest $906 daily volume. With 200 days to expiry and a neutral regime score, this market appears to be pricing in a Republican-favored but genuinely competitive race, though the low liquidity warrants caution on position sizing.

Resolution rules

This market will resolve according to the party of the candidate who wins the AZ-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/).

Indicators

IY (Yes) 62.3%
IY (No) 561.0%
Adj IY 281%
CRI 3
▶ Full indicator table (4)
IndicatorValue
IY (Yes)62.3%
IY (No)561.0%
Adj IY281%
CRI3

Regime

Label
neutral
Score
0.5
Spread
1¢
Computed
4/21/2026, 8:07:20 PM
Indicators computed 4/21/2026, 7:53:17 PM

Trade

View on polymarketsf trade 0xcc842c2fed3a0714caf0a408fa4fd7a3d0cf36c57adc02d0830a3612d4373a14 yes 100

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