ManifoldPlay moneyPoliticsDevelopingUpdated 1h ago

Will Republicans maintain house control in 2026 midterms?

As of Oct 12, 2026, 2:18 AM ET, Manifold priced this market at 11.0% (little changed over 24 hours). It had 39 mana traded in the past 24 hours and 100 mana of pool liquidity. probcast.co rates the support behind this price as moderate.

Market probability
11.0%
Little changed over 24 hours
Not live — snapshot Oct 12, 2:18 AM ET

Play-money market (mana, not dollars) — thin market where small orders can move the price — though most recent trading came from one account.

Price historyManifold

Source: Manifold price history

How credible was the move?

Methodology →

Move validity

Moderate

Consensus stability

Stable

Contract clarity

High

Can you trust this price?

Two different questions: how hard the price is to move, and whose trading set it.

Market capacity

How hard is it to move this price?

Thin

Pool liquidity

100 mana

Bid-ask spread

n/a

automated market maker

24h volume

39 mana

Total volume

54 mana

Play money: depth is in mana, so it says nothing about real-money conviction.

Who's trading

Whose opinion is this price?

One account dominates
67%of the traded money came from the single largest account

Accounts

3

Trades

4

over 7h

Largest order

10 mana

15 mana traded across these 4 trades (last 7h).

One account did most of the recent trading — the price reflects that account's view more than a crowd's.

Recent trade activity$15 traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

Resolution criteria This market resolves to YES if, following the U.S. midterm elections on November 3, 2026, the Republican Party maintains control of the United States House of Representatives for the 120th Congress.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

Resolution criteria This market resolves to YES if, following the U.S. midterm elections on November 3, 2026, the Republican Party maintains control of the United States House of Representatives for the 120th Congress. Specifically, this means: The Republican Party wins at least 218 of the 435 voting seats in the House. Alternatively, if neither party secures 218 seats outright due to independents or third parties, this market will resolve to YES if the Republican Party successfully organizes the chamber and elects a Republican Speaker of the House when the 120th Congress convenes in January 2027. If the Democratic Party or any other non-Republican coalition wins a majority of seats or successfully organizes the chamber (electing a non-Republican Speaker), this market resolves to NO. Sources and Timing: Temporary or projected results from major consensus media outlets (such as the Associated Press, NBC, CNN, and Fox News) may be used to resolve the market once a clear majority is called. In the event of a disputed or extremely close election, the final resolution will be determined by the official party control established when the 120th Congress is sworn in, as documented by the Clerk of the U.S. House of Representatives. Background The 2026 midterm elections are scheduled for Tuesday, November 3, 2026, during the mid-point of President Donald Trump’s second term. All 435 voting seats in the House of Representatives are up for election. Heading into the 2026 midterms, Republicans hold a slim majority in the House of Representatives. Because 218 seats are required for a majority, Democrats only need a net gain of a few seats to flip control of the chamber. Midterm elections historically present a challenging environment for the sitting president's party, making the House majority highly competitive.

What could move this market next?

  • The scheduled event takes placeDecember 31, 2026 at 6:00 AM ET

    The contract resolves on the event's outcome.

Derived from the contract's own mechanics as of Oct 12, 3:19 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±17 pts.

Thin marketLegacy movement classifier: watch

What's happening

low classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

  • Thin book and/or wide spread.

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
16Low
Where the price path tends to go next1181 observed
  • Illiquid / quiet99%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life —
PredictabilityStable

Secondary read: leaning toward Stale price.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

39 mana

Liquidity

100 mana

Total volume

54 mana

Category
Politics
Venue
Manifold
Open interest
—
Current probability
11.0%
Resolves
Dec 31, 2026
Change (pts)1H0.06H0.024H0.07D0.0

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