Top of book
ConnectingWaiting for the first live quote…
December 31, 2027 55.2%
Next is March 31, 2027 at 28.4%. Only Polymarket lists this market, so there is no second price to compare.
Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue. Ages are as of when this page was built.




The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
Waiting for the first live quote…
Enter a stake to see where it buys the most after fees, using each venue’s live order book.
Loading both order books…
Loading every outcome’s book…
Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "Russia x Ukraine Ceasefire by...?". December 31, 2027 leads at 55.2%. Next is March 31, 2027 at 28.4%. $2.8M has traded across 4 outcomes on Polymarket. The market is expected to resolve by Oct 31, 2026.
This market will resolve to "Yes" if a ceasefire between Russia and Ukraine goes into effect by 11:59 PM Eastern European Time (EET) on the specified date and remains continuously in effect for at least 10 calendar days. Otherwise, this market will resolve to "No". A ceasefire refers to any mutually agreed suspension of direct military engagement between Russia and Ukraine, which is officially announced by both countries or confirmed by a consensus of credible reporting to have been mutually agreed by both countries, and which constitutes a general suspension of direct kinetic military engagement across the primary theater of the overall conflict. A broader peace deal, normalization agreement, political framework, truce, or humanitarian pause (including holiday ceasefires) will count provided they otherwise qualify under this market’s rules. Any form of informal understanding, backchannel communication, de-escalation without an announced agreement, or unilateral pause in hostilities will not be considered a ceasefire. Agreements which only apply to specific conflict categories (e.g. restrictions on certain target categories or certain locations) will not qualify. Any calendar day (EET) during which the ceasefire is in effect (including the first day of the ceasefire) will count towards the 10-day total. The required 10 day period will end at 11:59 PM EET on the 10th day (inclusive). If a qualifying ceasefire goes into effect prior to this market’s end date, this market will remain open until the ceasefire is no longer in effect, or until the 10 calendar days have been reached. A ceasefire is considered no longer in effect when a consensus of credible reporting indicates the general suspension of hostilities has substantively ended across the primary theater. Temporary or technical lapses or expiration of a formal ceasefire term, isolated incidents, localized violations, or accusations alone will not invalidate the ceasefire provided the general suspension of hostilities across the primary theater continues. Where official government statements conflict with a consensus of credible field reporting, the reporting will take precedence over the government statements. The resolution source for this market will be a consensus of credible sources. Examples of qualifying Ceasefires: April 8, 2026 US–Iran ceasefire: The United States and Iran publicly announced and implemented a mutually agreed ceasefire framework intended to broadly halt direct military hostilities between the two countries. Despite subsequent maritime confrontations, alleged violations, isolated retaliatory strikes, and disputes regarding compliance, the broader ceasefire framework continued to function and widescale fighting across the primary theater did not resume. November 27, 2024 Israel–Hezbollah ceasefire: Israel and Hezbollah implemented a broadly operative ceasefire framework brokered through international mediators that substantially reduced hostilities across southern Lebanon and northern Israel, including the effective halt of Israel’s major ground offensive into Lebanon and a significant reduction in Hezbollah rocket fire. Although the ceasefire was not formally announced through a single joint declaration by both parties and public statements differed in framing and characterization, a consensus of credible reporting confirmed the arrangement had been mutually agreed and implemented in practice. Despite continued isolated strikes, alleged violations, and disputes regarding compliance, credible reporting broadly treated the ceasefire as remaining operational and widescale fighting across the primary theater of the conflict did not resume. Examples of non qualifying Ceasefires: November 24, 2023 Israel–Hamas humanitarian pause: Although it was a mutually agreed and publicly announced broad suspension of hostilities across Gaza, the ceasefire framework remained in effect for only approximately 7 days before wide-scale fighting resumed, failing the required 10-calendar-day duration requirement. Ceasefire violations prior to November 30, would not have invalidated the ceasefire. July 22, 2022 Black Sea Grain Initiative: Although Russia and Ukraine entered into internationally brokered agreements governing grain exports and reducing risks to commercial shipping in the Black Sea, the arrangement did not constitute a general suspension of direct military engagement across the primary theater of the war. Hostilities continued across Ukraine throughout the duration of the agreement and the arrangement applied only to specific categories of activity and geographic areas. May 2023 Sudan ceasefires (SAF–RSF): Although the Sudanese Armed Forces (SAF) and Rapid Support Forces (RSF) publicly agreed to multiple internationally brokered ceasefires, a consensus of credible reporting indicated that the general suspension of hostilities across the primary theater never substantively took effect and large-scale fighting broadly continued throughout the ceasefire periods. While some temporary reductions in violence and localized humanitarian access reportedly occurred in certain areas, artillery fire, airstrikes, urban combat, troop movements, and offensive operations continued across major parts of Sudan almost immediately after implementation. Credible reporting broadly treated the ceasefires as having failed or collapsed in practice despite technically remaining in force on paper.
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.