Will any country leave NATO by...?

Traders currently price "December 31, 2026" at 3% for "Will any country leave NATO by...?". Over the past 24 hours that probability moved down 0.7 points. Full distribution: December 31, 2026 3%, December 31, 2025 0%, June 30, 2026 0%. The market has traded $1.4M in total volume and resolves Dec 31, 2026. No NATO member has initiated formal withdrawal procedures under the North Atlantic Treaty as of mid-2026, keeping implied probabilities low. US exit faces a statutory barrier in the 2024 NDAA requiring two-thirds Senate consent or congressional action, while other allies such as Hungary have explicitly denied exit plans amid periodic tensions. Early 2026 friction over allied support for US operations tied to the Iran conflict prompted public criticism from President Trump, including references to NATO as a “paper tiger,” but these signals eased by the July Ankara summit where he affirmed continued US membership. Troop repositioning and European contingency planning for reduced US engagement have occurred, yet no member has issued denunciation notice. Upcoming bilateral diplomacy or NATO ministerial meetings could test cohesion, though legal thresholds and alliance structures limit near-term departures.

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