
Resolved No on 1 Jul 2026.
The last daily price before settlement had No at 99.8%. Yes opened at 60% on 29 Dec 2025. Before it settled, across the 163 daily closes on record from 29 Dec 2025 to 1 Jul 2026 (22 days in that span have no close), the highest close was 60% on 29 Dec 2025 and the lowest 0.3% on 26 Jun 2026. Its largest one-day move was 35 points down, to 25.5% on 30 Dec 2025. $177.48K traded over the market's life.
113 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Aug 21, 6:19 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 163 points, 29 Dec 2025 – 1 Jul 2026
| Observed | Yes price |
|---|---|
| 29 Dec 2025 | 60.0% |
| 1 Jul 2026 | 0.3% |
This market will resolve to “Yes” if any European country formally commits to giving Ukraine a security guarantee, defined as a publicly announced and mutually agreed deal between the relevant European country and the Government of Ukraine which creates a binding obligation for the relevant European country to defend or directly intervene on Ukraine’s behalf, by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No.” A qualifying “security guarantee” requires language that is equivalent in character to a NATO Article 5–style mutual defense commitment: the relevant European country must commit to responding militarily if Ukraine is attacked, or otherwise guarantee Ukraine’s defense through binding defense obligations. Examples of qualifying language include commitments modeled on the US treaties with Japan, South Korea, or the Philippines, or NATO's Article 5 instrument, which obligates the United States to “act to meet the common danger” through military force if an ally is attacked. Cooperative frameworks, capacity-building measures, consultative mechanisms, or nonbinding pledges will not qualify. Examples of non-qualifying arrangements include the June 13, 2024 US–Ukraine bilateral security agreement, the Taiwan Relations Act, or G7/EU “security arrangements” that provide support or consultation but stop short of binding defense guarantees. A qualifying agreement must be jointly announced and finalized, and take the form of a treaty, executive agreement, memorandum of understanding, joint declaration, or equivalent written instrument. Announcements which are statements of intent, contingent, exploratory, or otherwise not indicative of a formalized policy will not count. The primary resolution source will be a consensus of credible reporting. Qualifying European countries include: Albania; Andorra; Armenia; Austria; Azerbaijan; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czechia; Denmark; Estonia; Finland; France; Georgia; Germany; Greece; Hungary; Iceland; Ireland; Italy; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Moldova; Monaco; Montenegro; Netherlands; North Macedonia; Norway; Poland; Portugal; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain; Sweden; Switzerland; Ukraine; United Kingdom.
Official listing: polymarket.com/event/european-country-agrees-to-give-ukraine-security-guarantee-by-june-30
| umasoldout | Yes | 1.29K |
| th47 | Yes | 659.13 |
| Keen Oracle 60E1 | Yes | 309.37 |
| Teixeira10 | Yes | 228.33 |
| Imperfect-Lamb | Yes | 200 |
| bbc.alex | Yes | 198.51 |
| Bohemian | Yes | 166.97 |
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