Will the Republican Party win the CA-08 House seat?

Prediction markets currently give a 7% probability that Will the Republican Party win the CA-08 House seat?. This contract trades at 7¢ on Polymarket, closing November 3, 2026. This market shows extreme mispricing with a 7% Republican probability in a historically Democratic district (CA-08), generating an implausible 2,426% implied yield on a Yes position despite zero 24-hour volume and $17k open interest.

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7¢
Bid/Ask 6/7¢·Spread 1¢·Vol $0·OI $39,175.683·Closes Nov 3, 2026·195d remaining
0xf59969f2fbd8166009294d8c2d0fcca8cefea531788ff4a507322cda573b6f4a
7-day price25 snapshots · 2 regime
7¢7¢ current
Apr 146¢Apr 19

Analysis

4d ago

This market shows extreme mispricing with a 7% Republican probability in a historically Democratic district (CA-08), generating an implausible 2,426% implied yield on a Yes position despite zero 24-hour volume and $17k open interest. The 957% realized volatility and 1.79 vol ratio suggest this is a low-liquidity ghost market with minimal price discovery, likely reflecting a stale or erroneous quote rather than genuine market consensus. With 200 days to expiration and negligible trading activity, this contract appears illiquid and unreliable for serious prediction purposes.

Resolution rules

This market will resolve according to the party of the candidate who wins the CA-08 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) 2484.9%
IY (No) 14.1%
Adj IY 1242%
CRI 13
▶ Full indicator table (4)
IndicatorValue
IY (Yes)2484.9%
IY (No)14.1%
Adj IY1242%
CRI13

Regime

Label
neutral
Score
0.5
Spread
1¢
Computed
4/21/2026, 8:27:56 PM
Indicators computed 4/21/2026, 8:23:18 PM

Trade

View on polymarketsf trade 0xf59969f2fbd8166009294d8c2d0fcca8cefea531788ff4a507322cda573b6f4a yes 100

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