As of Oct 18, 2026, 9:59 PM ET, Polymarket priced this market at 3.6% (up from 2.5% 24 hours earlier). It had $163.8K traded in the past 24 hours, $239.7K of order-book liquidity and a bid-ask spread of 0.8 pts. probcast.co rates the support behind this price as strong.
Deep, easy-to-trade market — though most recent trading came from one account.
Source: Polymarket price history
Is the move backed by real trading and depth?
The pricing is supported by healthy trading volume and market depth, a tight spread.
Has the market settled at the new probability?
The probability has held near its current level over the past several hours.
Will the rules resolve without ambiguity?
The resolution rules are relatively specific, with a named source and a defined deadline.
Two different questions: how hard the price is to move, and whose trading set it.
How hard is it to move this price?
Order-book liquidity
$239.7K
Bid-ask spread
0.8 pts
24h volume
$163.8K
Total volume
$15.9M
It would take roughly $3.4K of buying to move the price up by ~5 pts.
Lots of money on the book and a tight spread — a single ordinary order can't move this price much.
Whose opinion is this price?
Accounts
41
Trades
200
over 4 days
Largest order
$4.1K
$5.4K traded across these 200 trades (last 4 days).
One account did most of the recent trading — the price reflects that account's view more than a crowd's.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
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.
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.
The contract must resolve based on what has happened by this date.
Derived from the contract's own mechanics as of Oct 18, 10:08 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.
Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: high · expected error ±9 pts.
Liquid, two-sided, and calm. The current price reads as settled consensus — the latest print is a reasonable summary of what the market believes.
The latest price is a usable but caveated read — weigh it with the market state.
Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.
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.