KalshiPoliticsDevelopingUpdated 4m ago

Will Matthew Kacsmaryk become the next Justice on the Supreme Court?

As of Oct 11, 2026, 10:54 PM ET, Kalshi priced this market at 0.5% (little changed over 24 hours). It had $46 traded in the past 24 hours and a bid-ask spread of 0.1 pts.

Market probability
0.5%
Little changed over 24 hours
Limited data

The venue's feed doesn't report liquidity for this market; the price has held steady over 24 hours.

Price historyKalshi

Source: Kalshi price history

How credible was the move?

Methodology →

Move validity

Insufficient data

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?

UnknownTight spreadThin market

Book depth (±5 pts)

$77.6

live order book

Bid-ask spread

0.1 pts

24h volume

$46

Open interest

$11.2K

It would take roughly $96.8 of buying to move the price up by ~5 pts.

The venue's feed omits liquidity, so the score treats depth as unknown — the live order book above is the best read of how hard this price is to move.

Who's trading

Whose opinion is this price?

Participation data isn't captured for this market yet.

Participation data isn't captured for this market yet, so we can't say how many accounts set this price.

What this market actually measures

If Matthew Kacsmaryk is the first person confirmed by the Senate to the position of Justice of the Supreme Court by January 20, 2029, then the market resolves to Yes.

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

If Matthew Kacsmaryk is the first person confirmed by the Senate to the position of Justice of the Supreme Court by January 20, 2029, then the market resolves to Yes.

Resolution source: If Matthew Kacsmaryk is the first person confirmed by the Senate to the position of Justic…

What could move this market next?

  • The market's deadline arrivesJanuary 20, 2029 at 11:59 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, 10:58 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 ±21 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
8Low
Where the price path tends to go next1061 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 ~4w
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

$46

Liquidity

$0

Total volume

$14.3K

Category
Politics
Venue
Kalshi
Open interest
$11.2K
Spread
0.1 pts
Best bid
0.4%
Best ask
0.5%
7-day range
0.5% – 0.5%
Resolves
Jan 20, 2029
Resolution
If Matthew Kacsmaryk is the first person confirmed by the Senate to the position of Justic…
Change (pts)1H0.06H0.024H0.07D0.0

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