OR-04 House Election Margin of Victory

Polymarket traders put "Democrat 15-20%" at 24.5% on "OR-04 House Election Margin of Victory". Up 2.5%p from yesterday. $5 traded in the last 24 hours. There are 9 possible outcomes. It resolves on Nov 3.

Most likely right now
Democrat 15-20%
2.525%
PoliticsVol $5Total volume $5Liquidity $1.8Kin 2 months (Nov 3)
Current probability

Aug 26 · right column is the 24-hour change (pp)

0%50%100%
Democrat 15-20%
24.5%
2.5
Democrat 0-5%
23.0%
2.5
Democrat 20-25%
22.0%
0.5
Democrat 35%+
21.5%
4.0
Democrat 5-10%
21.5%
4.0
Democrat 10-15%
21.0%
4.5
Democrat 25-30%
15.5%
2.5
Republican Wins
13.7%
4.2
Democrat 30-35%
13.0%
5.0

Probability over time

Democrat 15-20%
Democrat 0-5%
Democrat 20-25%
Democrat 35%+
Democrat 5-10%
Democrat 10-15%
02550751008/258/26
2026-08-25 ~ 2026-08-26 · y-axis %

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Probabilities are Polymarket trade prices, formed by participants betting real money. They are not official forecasts and are a poor basis for investment decisions.