49% — Russia x Ukraine ceasefire agreement by...
Leader: December 31 at 49% · Polymarket 49% · 3 contracts · $145K volume · medium confidence
Updated 2026-07-24 05:03:37 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 3 outcomes.

Why this matters:
Market participants estimate a 46% probability that Russia and Ukraine reach a ceasefire agreement by December 31, 2026. The near-term contract (June 30) trades at 9%, suggesting traders view a truce within the next weeks as unlikely. The December deadline implies that any agreement would require either major battlefield developments shifting negotiating positions, a change in political leadership in one or both countries, or diplomatic intervention reshaping incentives. The core driver of uncertainty is whether military dynamics—territorial control, casualty rates, weapons availability—will produce stalemate conditions that make negotiation attractive to both sides. Key upcoming variables include ammunition production capacity, NATO posture shifts, internal political movements, and whether either side achieves decisive territorial gains over the next six months.

Key factors:
- Current territorial front lines and their stability or movement over the next 90 days will indicate whether either side perceives military advantage or stalemate
- U.S., EU, and other major power diplomatic signaling—statements on negotiations, sanctions policy, or weapons supply—directly influences both sides' perceived costs of continued conflict
- Ukrainian domestic political viability of any ceasefire terms versus Russian demands will constrain what agreements are acceptable to Kyiv
- Russian military losses, recruitment capacity, and domestic political pressure will determine Moscow's willingness to negotiate from current positions
- Any scheduled major diplomatic summit, peace proposal rollout, or leadership transition announcement before year-end would shift market expectations materially

Contracts:
- Russia x Ukraine ceasefire agreement by...?: December 31 — 49¢ Polymarket $5K (weight 4%)
- Russia x Ukraine ceasefire agreement by...?: October 31 — 34¢ Polymarket $17K (weight 12%)
- Russia x Ukraine ceasefire agreement by...?: June 30 — 4¢ Polymarket $123K (weight 85%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-06-19T01:20:20.801Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "49% per prediction markets (SimpleFunctions, July 2026)"
Canonical: https://simplefunctions.dev/answer/russia-x-ukraine-ceasefire-agreement
Full data: https://simplefunctions.dev/api/public/query?q=Russia%20x%20Ukraine%20ceasefire%20agreement%20by...
Provider: SimpleFunctions — https://simplefunctions.dev