ManifoldPlay moneyPoliticsLikely noiseUpdated 8m ago

Will any US Senate Race go to a runoff (2026 election cycle)?

As of Oct 11, 2026, 6:24 PM ET, Manifold priced this market at 10.1% (down from 45.2% 24 hours earlier). It had 201 mana traded in the past 24 hours and 100 mana of pool liquidity. probcast.co rates the support behind this price as weak.

Market probability
10.1%
−35.2 percentage points
over 24 hours45.2% → 10.1%
Moving fastBig move, weak backing

Play-money market (mana, not dollars) — thin market where small orders can move the price — but today's move came mostly from one account.

Price historyManifold

Source: Manifold price history

How credible was the move?

Methodology →

Move validity

Weak

Consensus stability

Forming

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

201 mana

Total volume

201 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
92%of the traded money came from the single largest account

Accounts

4

Trades

5

over 9h

Largest order

185 mana

201 mana traded across these 5 trades (last 9h).

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

Recent trade activity$201 traded

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

Why the odds moved

The probability fell 35.2 percentage points over the last 24 hours (45.2% → 10.0%).

No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.

What could move this market next?

  • The market's deadline arrivesDecember 31, 2026 at 6:59 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Oct 11, 6:32 PM 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 ±31 pts.

Reacting to newsLegacy movement classifier: noisy

What's happening

high classifier confidence
Reacting to news

The price is actively repricing on real volume. The number is still moving — don't treat the latest print as settled consensus yet.

  • Probability moved 35.2 pts in ≤6h on adequate liquidity

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

More details — reliability score, dynamics, durability
Reliability score
0Low
Where the price path tends to go next1009 observed
  • Illiquid / quiet99%

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

DurabilityMedium· half-life <1h
PredictabilityElevated irreducibility

Secondary read: leaning toward One big trader.

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

201 mana

Liquidity

100 mana

Total volume

201 mana

Category
Politics
Venue
Manifold
Open interest
—
Current probability
10.1%
7-day range
10.1% – 45.2%
Resolves
Dec 31, 2026
Change (pts)1H0.06H-35.224H-35.27D-35.2