Will Republicans lose a seat in the House of Representatives in any state Trump won in 2024?
Probability
88¢
1h
-0.4pp
24h
+0.4pp
24h Vol
$0.00
Liquidity
$6.1K
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
Active market, expiry beyond the near-expiry window.
Resolution & Risk
LOW risk- End date
- Nov 3, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- Wide spread (11.7¢) — liquidity risk on entry/exit.
Probability (last 7 days)
-1.6pp 7dWhy did it move?
Structured · 2 factors- 01Active signal
Resolution-risk observation firing
Spread is wide enough that intraday moves overstate any tradeable edge.
- 02Spread cost
Wide spread — 11.7¢
Bid-ask spread is wide enough that intraday moves overstate any tradeable advantage. Most of the headline pp move would be eaten by spread on a market order.
What to track next
- Verify the resolution source on this page — exchange feed, official release, news consensus — before treating any move as new information.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
LOW risk- End date
- Nov 3, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- Wide spread (11.7¢) — liquidity risk on entry/exit.
Timeline
critical · price · trade flowCritical
- Nov 3, 00:00 UTCScheduled resolutionLOW
Market resolves in 4046.1h
- 09:55SignalLOW
Resolution risk
Spread is wide enough that intraday moves overstate any tradeable edge.
Price movement
+0.4pp over the last 24h, now 88¢.
Biggest hourly move: -4.2pp at May 15, 03:00 UTC (to 88¢).
Active signals
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
The 2026 midterm elections for the US House of Representatives is scheduled to be held on November 3, 2026. This market will resolve to "Yes" if Republicans hold fewer seats in the House of Representatives for any state that Trump won in the 2024 US presidential election as a result of the 2026 midterm elections. Otherwise, this market will resolve to "No". Initial seat counts will be based on the composition of the US House of Representatives as of November 2, 2026, 11:59PM ET. This market's resolution will be solely based on the number of seats held by the Republican Party in the US House of Representatives for any state won by Trump in the 2024 Presidential election. The loss of particular district seats will not count towards a resolution for this market; only the total number of seats held by the Republican Party in a given state will be considered. (e.g. The loss of a particular district's seat by the Republican Party followed by the gain of another district's seat would not be sufficient to resolve this market to "Yes".) 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. For the purposes of this market, states won by Trump in the 2024 Presidential election include Alabama, Alaska, Arizona, Arkansas, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, West Virginia, Wisconsin, and Wyoming. This list is determined by the winner of the electoral votes for each state in the 2024 Presidential election. In states such as Maine and Nebraska, where electoral votes are allocated separately by congressional districts as well as to the statewide winner, only the electoral votes allocated to the statewide winner are considered. 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/).
Why this category?
confidence: highCategory
Source
Matched term
presidential electionReason
Election markets must always classify as Politics, never as Sports — Roadmap §3 invariant 2.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Will Republicans lose a seat in the House of Representatives in any state Trump won in 2024?"?
As of Mon, 18 May 2026 09:55:03 GMT, YES is priced at 88% implied probability on Polymarket. The price changed +0.4pp in the last 24 hours, -0.4pp in the last hour, and -1.6pp in the last 7 days.
When does this market resolve?
This market resolves by Nov 3, 2026 (2026-11-03T00:00:00.000Z). Resolution is determined from the market description on Polymarket.
What source determines the outcome?
Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$0.00 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $2.3K. Open liquidity in the YES/NO orderbooks: $6.1K. Spread between best bid and best ask: 11.7¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
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