Will any country leave NATO by...?

According to the latest prediction market data for the query “Will any country leave NATO by...?”, traders have formed a strong consensus.

Currently, December 31, 2026 is dominating the market with an overwhelming 4.8% chance of winning. June 30, 2026 follows in second place at 0.4%. The betting volume for this specific market has already reached $1.2M, reflecting intense industry interest.

To better assess where each potential outcome stands, the market can be segmented into three distinct trading tiers based on implied probability and contract pricing:

🥇 Tier 1: The Dominant Leader

• December 31, 2026 (4.8%): Currently commanding the highest probability, December 31, 2026 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 5¢, signaling a high degree of market conviction. This contract alone has generated $168.3K in volume.

🥈 Tier 2: The Primary Challengers

• June 30, 2026 (0.4%): Positioned as the most viable alternative, June 30, 2026 maintains a 0.4% chance of resolving true. Its “Buy Yes” shares currently trade at 0¢.

This market will resolve to "Yes" if any member state formally withdraws from NATO or provides an official notice of denunciation to NATO by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No".

A notice of denunciation refers to the submission of a notice of withdrawal as per Article 13 of the North Atlantic Treaty.

A country's exit from NATO’s integrated military command structure will not be sufficient to resolve this market to "Yes". That country must either withdraw or submit a notice of denunciation to trigger a "Yes" resolution.

The resolution source will be official information from the relevant government and NATO, however a consensus of credible reporting may also be used.

While human consensus and speculative volume shape the broader prediction market, our quantitative algorithms offer a data-driven counter-perspective. By analyzing fundamental signals, underlying trends and historical distributions, our AI Valuation model calculates an independent “Fair Value” probability for each outcome.

Comparing this Fair Value against the current Trade Value uncovers major disparities — known as the Expected Value (EV) Gap. Contracts with a positive EV Gap represent statistically underpriced outcomes, whereas a negative EV Gap flags a potential market overreaction.

Top AI Alpha & Mispriced Arbitrage Opportunities

Based on the latest data model run, several key contracts stand out with significant deviations:

• The Best Value Play (Highest EV) Our model identifies December 31, 2026 as the premium value opportunity on the board. While the market only assigns it a 4.8% trading probability, our AI’s Fair Value assessment sits at 6.9% — yielding an impressive +2.2% EV Gap.
• Under-the-Radar Dark Horses Other notable discrepancies include June 30, 2026 (EV Gap: +0.6%). These long-tail opportunities are heavily discounted by the live order books despite stronger statistical backing from our predictive model.