PolymarketGeopoliticsDevelopingUpdated 9m ago

Russia x Ukraine ceasefire agreement by December 31, 2026?

As of Oct 16, 2026, 3:47 PM ET, Polymarket priced this market at 13.5% (little changed over 24 hours). It had $21.2K traded in the past 24 hours, $147.6K of order-book liquidity and a bid-ask spread of 1.0 pts. probcast.co rates the support behind this price as moderate.

Market probability
13.5%
Little changed over 24 hours

Thin market where small orders can move the price, with broad trading across many accounts.

Price historyPolymarket

Source: Polymarket 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?

ThinTight spread

Order-book liquidity

$147.6K

Bid-ask spread

1.0 pts

24h volume

$21.2K

Total volume

$2.8M

It would take roughly $6.8K of buying to move the price up by ~5 pts.

Little money on the book — a modest order can move this price, so treat swings with care.

Who's trading

Whose opinion is this price?

Broad participation
14%of the traded money came from the single largest account

Accounts

108

Trades

200

over 5 days

Largest order

$1.1K

$10.8K traded across these 200 trades (last 5 days).

Many independent accounts traded — the price reflects a crowd, not one trader.

Recent trade activity$10.8K traded

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 there is a ceasefire agreement between Russia and Ukraine by the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No”.

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 there is a ceasefire agreement between Russia and Ukraine by the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No”. A ceasefire agreement refers to any mutually-agreed suspension of direct military engagement between Russia and Ukraine, which is either officially announced by both countries or confirmed by a consensus of credible reporting to have been mutually agreed by both countries. A broader peace deal, normalization agreement, political framework, truce, or humanitarian pause will qualify if it includes a mutually agreed suspension of direct military engagement, to be effective on a specified date. Agreements that outline future negotiations or de-escalation measures without an explicit, dated commitment to stop fighting will not qualify. Any form of informal understanding, backchannel communication, de-escalation without an announced agreement, or unilateral pause in hostilities will not be considered a ceasefire agreement. Only agreements which constitute a general pause in the conflict will qualify. Agreements which only apply to specific conflict categories (e.g. restrictions on certain target categories or certain locations) will not qualify. If a qualifying agreement is officially reached before this market’s end date, this market will resolve to “Yes,” regardless of whether the ceasefire agreement officially takes effect after that date. The primary resolution sources for this market will be official information from the governments of Russia and Ukraine and a consensus of credible reporting.

What could move this market next?

  • The market's deadline arrivesDecember 31, 2026 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 16, 3:56 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 ±12 pts.

Quote-drivenLegacy movement classifier: watch

What's happening

medium classifier confidence
Quote-driven

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
Reliability score
53Medium
Where the price path tends to go next1364 observed
  • Choppy / mean-reverting97%
  • Stable consensus1%

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 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.

Change (pts)1H0.06H0.024H0.07D0.0

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