Will J.D. Vance win the 2028 Republican presidential nomination?
No meaningful repricing — the probability is steady.
The pricing has partial support: healthy trading volume and market depth, a tight spread.
How credible was the move?
Three separate questions — a move can be genuine while the latest price is still settling. Methodology →
Move validity
Is the move backed by real trading and depth?
ModerateThe pricing has partial support: healthy trading volume and market depth, a tight spread.
Consensus stability
Has the market settled at the new probability?
StableThe probability has held near its current level over the past several hours.
Contract clarity
Will the rules resolve without ambiguity?
HighThe resolution rules are relatively specific, with a named source and a defined deadline.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
What this market actually measures
This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president.
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
This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Republican Party sources. Any replacement of the Republican nominee before election day will not change the resolution of the market.
What could move this market next?
- The market's deadline arrivesNovember 6, 2028 at 7:00 PM ET
The contract must resolve based on what has happened by this date.
Derived from the contract's own mechanics as of Sep 16, 1:33 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 ±11 pts.
What's happening
A tight, deep, quote-driven book with little executed flow. The price is stable but reflects resting quotes more than active trading.
- Tight spread on a liquid, calm market
The latest price is a usable but caveated read — weigh it with the market state.
More details — reliability score, dynamics, durability
- Choppy / mean-reverting90%
- Stable consensus4%
- Thin-liquidity spike3%
Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.
Secondary read: leaning toward Trading normally.
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
$7.4K
Liquidity
$371.7K
Total volume
$15.7M
- Category
- Politics
- Venue
- Polymarket
- Open interest
- —
- Spread
- 0.1 pts
- Best bid
- 51.2%
- Best ask
- 51.3%
- Resolves
- Nov 6, 2028