The Prediction Markets

Russia military action against EU country by...?

Closes
Jan 1, 2027, in 2 months
Traded
$287K
Venues
Polymarket
Prices updated
1 min ago
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What the markets expect

December 31, 2027 22.5%

Next is December 31, 2026 at 10%. Only Polymarket lists this market, so there is no second price to compare.

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. 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, the oldest 1 min ago. Ages are as of when this page was built.

  • Polymarket
December 31, 2027
22.5%
Polymarket 22.5%polled, 1 min agoBest Yes 24¢ on Polymarket, $100 pays $417 (4.17x)
Polymarket
Contract
December 31, 2027
Last price
22.5%
As of
Polled 1 min ago
Buy Yes
24¢
Sell Yes
21¢
$100 on Yes pays
$417 (4.17x)
Volume
$12K
Trade this on Polymarket
December 31, 2026
10%
Polymarket 10%polled, 1 min agoBest Yes 11¢ on Polymarket, $100 pays $909 (9.09x)
Polymarket
Contract
December 31, 2026
Last price
10%
As of
Polled 1 min ago
Buy Yes
11¢
Sell Yes
9¢
$100 on Yes pays
$909 (9.09x)
Volume
$233K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 2 outcomes on both venues, with the consensus between them. Hover for exact values.

  • December 31, 2027
  • December 31, 2026

Order books

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.

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

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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 0.04 × price × (1 − price) per share (politics rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Russia military action against EU country by...?". December 31, 2027 leads at 22.5%. Next is December 31, 2026 at 10%. $287K has traded across 2 outcomes on Polymarket. The market is expected to resolve by Jan 1, 2027.

This market will resolve to "Yes" if Russia takes a qualifying military action against an EU member state between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to "No". A qualifying military action refers to an air strike or a surface-to-surface missile strike, initiated by Russia, that directly impacts an EU member state. An air strike includes bombs, air-to-surface missiles, and air-launched drones. A surface-to-surface missile strike includes one-way attack drones and surface-to-surface missiles such as cruise or ballistic missiles. The qualifying military action must be carried out by the armed forces of Russia. Actions carried out by private military contractors, mercenaries, proxy forces, or the armed forces of any other state, including Belarus, will not qualify. An "EU member state" refers to any of the 27 member states of the European Union as of market creation: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, and Sweden. The following actions do not constitute a qualifying military action: Munitions destroyed or intercepted before impact; Surface-to-air missile strikes; Small-arms fire; Ground incursions; Cyber operations; Naval gunfire and artillery fire; Howitzers, artillery pieces, mortars, and rocket artillery (e.g. MLRS systems); Minor surface-to-surface strikes, including short range loitering munitions, FPV drones, and ATGM strikes; Sabotage, arson, or other covert acts not carried out with the munitions described above; Any threat, authorization, or announcement of force that has not been executed. Any munition that is intercepted or destroyed before impact does not constitute a qualifying military action. Debris, fragments, or any wreckage from intercepted munitions that land on an EU member state do not constitute a military action regardless of any damage incurred. Munitions that enter the territory of an EU member state in the course of a Russian attack on a non-EU country, including Ukraine, will not qualify unless a consensus of information available from the resolution sources indicates that the munition was directed at a target within the EU member state. A strike on an EU member state that is claimed by the Russian government or military will qualify. The territory of an EU member state refers to its terrestrial territory, including its internal waters. Maritime territory and airspace are not encompassed. Territories of member states to which the EU treaties do not apply, including Greenland, the Faroe Islands, and the overseas countries and territories associated with the EU, will not qualify. Where territorial borders are disputed, all territory claimed by and under the de facto control of the EU member state as of market creation will qualify. The occurrence, attribution, and timing of a qualifying military action will be primarily determined based on a consensus of information available from the resolution sources. Where multiple sources conflict regarding the occurrence, attribution, or timing of a relevant military action, this market will remain open until the earlier of: i) the confirmation of the occurrence, attribution, and timing of the action based on a consensus of information available from the resolution sources or ii) 3 full calendar days (ET) from the date of the first credibly reported evidence of the action. If this period would extend past the end date, this market will remain open to allow for 3 full calendar days to pass. At the end of the third calendar day, if conflicting reports remain, the incident will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments and militaries of Russia and the relevant EU member state, official information from NATO and the European Union, and a consensus of credible reporting.

Questions

What does the consensus price mean?

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%.

How is the payout worked out?

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.

Why do the venues show different prices?

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.

Is a price gap an arbitrage?

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.

How fresh are these prices?

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.

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