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PolymarketGeopoliticsUpdated 8m ago

Russia x Ukraine ceasefire agreement by October 31, 2026?

Market probability
26.5%
17 percentage points
over 24 hours43.5%26.5%
57 days until the event deadline
Deadline: October 31, 2026 at 11:59 PM ET

Confirmed repricing, but the latest probability is still moving.

The pricing is supported by healthy trading volume and market depth, a tight spread. The probability moved another 30 points in the past hour — the market is still repricing.

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?

Strong

The pricing is supported by healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Unsettled

The probability moved another 30 points in the past hour — the market is still repricing.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$10.1K 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.

Why the odds moved

The probability fell 17.0 percentage points over the last 24 hours (43.5% 26.5%).

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 arrivesOctober 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 Sep 4, 5:57 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Probability by deadline

The same event, priced across deadline contracts on this venue.

Extending the deadline from Oct 31 to Dec 31 adds about 10.0 percentage points of implied probability.

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: medium · expected error ±23 pts.

Reacting to newsLegacy movement classifier: watch

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 30.0 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
5Low
Where the price path tends to go next23 observed
  • News repricing30%
  • Trend continuation27%
  • Choppy / mean-reverting17%

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

DurabilityLow· half-life <1h
PredictabilityElevated irreducibility

Secondary read: leaning toward Trending.

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

$216.7K

Liquidity

$72.2K

Total volume

$1.3M

Category
Geopolitics
Venue
Polymarket
Open interest
Spread
1.0 pts
Best bid
26.0%
Best ask
27.0%
7-day range
26.5% – 56.5%
Resolves
Oct 31, 2026
Change (pts)1H-30.06H-17.024H-17.07D-17.0

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