Russia-Ukraine war prediction markets: ceasefire, territory, and escalation

By Ben L., Founder & CEO

Key highlights

• No general ceasefire is in force. Short truces around Orthodox Easter in April 2026 and Victory Day in May 2026 both lapsed within days. Polymarket prices a Russia-Ukraine ceasefire agreement by December 31 at 35 cents, a ceasefire actually in effect by that date at 23 cents, and a signed peace deal before 2027 at 20 cents, as of August 2026. Those are three different questions, and the distance between them is what the market thinks separates a deal on paper from quiet on the ground.
• Kostiantynivka is the clearest case of contract wording setting the price. Russia said in July 2026 that it had taken the city; Ukraine said its forces still held it. A contract on Russia capturing Kostiantynivka by year end trades at 94 cents, while the contract on Russia capturing all of Kostiantynivka by the same date trades at 55 cents, as of August 2026. Same city, same deadline, two thresholds for control.
• The negotiation and the front line price the same ground by different routes. Ukraine agreeing to give up the rest of the Donbas before 2027 sits at 7 cents and Russia taking all of Donetsk Oblast by force by year end sits at 3 cents, as of August 2026. Neither path is priced as likely inside this year, which is why the ceasefire contracts sit where they do.

What the open contracts turn on.

How prediction markets price the war.

Agreement, ceasefire, and peace deal: Three contracts price three stages of the same process, and the ordering is the useful part. A ceasefire agreement by December 31 sits at 35 cents, a ceasefire in effect by that date at 23 cents, and a signed peace deal before 2027 at 20 cents, as of August 2026. A shorter deadline prices lower still: the same agreement question by October 31 trades at 15 cents.

The Donetsk front line: City-level contracts track the advance through the Fortress Belt. Russia entering Dobropillia by year end prices at 75 cents, Druzhkivka at 42 cents, and Sloviansk and Kramatorsk near 21 cents each, as of August 2026. Taking the whole oblast by year end prices at 3 cents, so the market reads the campaign as incremental rather than decisive.

Two thresholds, one city: Kostiantynivka carries a capture contract at 94 cents and an all-of-the-city contract at 55 cents for the same year-end deadline, as of August 2026. Lyman shows the same split from the other side: the capture question already settled Yes while the all-of-Lyman contract still trades at 16 cents. The gap is a definition, not a pricing error.

Escalation beyond Ukraine: A military clash between Russia and any NATO member by year end prices at 26 cents, while the narrower US and Russia version prices at 5 cents, as of August 2026. Russia invading a country other than Ukraine in 2026 sits at 9 cents and Ukraine joining NATO before 2027 at 4 cents.

Leadership and diplomacy: Putin leaving the Russian presidency by year end trades at 9 cents on Polymarket and 10 cents on Kalshi, as of August 2026; the venues are pricing the same view through different wording and settlement times, not disagreeing. A Zelenskyy and Putin meeting is priced thinly on both: Polymarket’s no-meeting bracket sits at 93 cents and Kalshi’s direct meet-before-2027 contract at 10 cents.