Will the Republican Party win the IL-09 House seat?

Prediction markets currently give a 7% probability that Will the Republican Party win the IL-09 House seat?. This contract trades at 7¢ on Polymarket, closing November 3, 2026.

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7¢
Bid/Ask 6/7¢·Spread 1¢·Vol $0·OI $37,938.04·Closes Nov 3, 2026·195d remaining
0xc615cf14dd2bfc6a9ea93d62ad5cab7ee6c1d10085bb6a4b38ba314ad3eb7d82

Resolution rules

This market will resolve according to the party of the candidate who wins the IL-09 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) 2484.8%
IY (No) 14.1%
Adj IY 1242%
CRI 13
▶ Full indicator table (4)
IndicatorValue
IY (Yes)2484.8%
IY (No)14.1%
Adj IY1242%
CRI13

Regime

Label
neutral
Score
0.409
Spread
1¢
Computed
4/21/2026, 8:19:38 PM
Observability mediumEvent type political
Indicators computed 4/21/2026, 8:08:17 PM

Trade

View on polymarketsf trade 0xc615cf14dd2bfc6a9ea93d62ad5cab7ee6c1d10085bb6a4b38ba314ad3eb7d82 yes 100

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