Will the Democratic Party win the IA-01 House seat?

Prediction markets currently give a 63% probability that Will the Democratic Party win the IA-01 House seat?. This contract trades at 63¢ on Polymarket, closing November 4, 2026. The Democratic contract at 67¢ shows a significant asymmetry, with the No side offering a 352.5% implied yield versus just 93.5% for Yes, suggesting substantial perceived downside risk despite the majority pricing.

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63¢
Bid/Ask 57/68¢·Spread 11¢·Vol $49.22·OI $5,930.122·Closes Nov 4, 2026·196d remaining
0x5ad7756609da59ffb359e37a16cc0b89285f4b823623e22e2900f054a77ed8ed
7-day price1242 snapshots · 3 regime
81¢64¢ current
Apr 840¢Apr 21

Analysis

4d ago

The Democratic contract at 67¢ shows a significant asymmetry, with the No side offering a 352.5% implied yield versus just 93.5% for Yes, suggesting substantial perceived downside risk despite the majority pricing. The market exhibits extreme volatility (519% realized, 5.31 vol ratio) with modest liquidity ($32.2K daily volume against $12.5M open interest), and the 6-cent price rise over seven days combined with a 5-cent spread indicates recent bullish momentum but tight two-way pricing. With 201 days to expiration and a neutral regime, this appears to be a competitive race where the market is pricing in meaningful uncertainty despite the Democratic lean.

Resolution rules

This market will resolve according to the party of the candidate who wins the IA-01 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) 109.3%
IY (No) 316.8%
Adj IY 158%
CRI 2
▶ Full indicator table (4)
IndicatorValue
IY (Yes)109.3%
IY (No)316.8%
Adj IY158%
CRI2

Regime

Label
neutral
Score
0.5
Spread
11¢
Computed
4/21/2026, 8:27:39 PM
Indicators computed 4/21/2026, 8:23:18 PM

Trade

View on polymarketsf trade 0x5ad7756609da59ffb359e37a16cc0b89285f4b823623e22e2900f054a77ed8ed yes 100

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