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Russia-Ukraine peace talks by December 31, 2026?

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

TradingContract settles 1 Jan 2027Last checked 29 Oct 2026, 20:40 UTC
PM

Bid/ask midpoint · retrieved 2026-10-29T20:40:28.683Z. Venue quote-update time is unavailable. Readings can be asynchronous.

83.0%bid 82.0% / ask 84.0%24h volume $12K · liquidity $32Kas of 29 Oct, 20:40 UTCView on Polymarket

Crossbook forecast

57.0%against a market price of 48.5% at the timeOpen

Logged 29 Aug 2026, 14:37 UTC

  • Signal: the settlement bar is low—one deliberate official meeting aimed at ceasefire/peace/substantive de-escalation suffices, no agreement required, and indirect formats may qualify—so back-channel or lower-level diplomacy can resolve YES even amid fighting.
  • Signal vs narrative: war exhaustion, winter energy/economic pressure, manpower constraints, and 2026 US/European electoral incentives support at least exploratory contacts; the narrative of imminent peace is not required and should not be overweighted against entrenched maximalist demands and domestic veto risks.
  • My 57% is above the 48.5% market mainly because $2,608 24h volume is thin and traders may be pricing absence of headline peace summits while underpricing the broad qualifying-meeting definition and end-of-year diplomatic deadline pressure.

What would change it: Credible evidence by late autumn that both governments have formally ruled out any qualifying official contacts and suspended humanitarian/back-channel channels would push this sharply lower.

+8.5 probability points from the market at generation · low confidence · Polymarket

Base rate: In prolonged interstate wars, at least exploratory official de-escalation contacts in a given four-month window are fairly common even without settlement, but Russia-Ukraine has had unusually sparse high-level direct talks since 2022, so the applicable base rate is nearer a coin flip than a typical-war rate.

Chosen by hand.

Polymarket prices this at 83.0%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.

Volume over the last 24 hours is modest, at about $11,548 on the busier venue. It closes in about 63 days, which is near enough that a single scheduled event can move it.

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This call is line t-0072 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.