Trader consensus assigns a 97.4% implied probability to no invocation of NATO's Article 5 collective defense clause by March 31, driven by the absence of armed attacks on alliance members and sustained deterrence against major adversaries. Russia's ongoing Ukraine offensive remains confined outside NATO borders, while Baltic airspace violations stay routine and non-triggering, as confirmed by alliance monitoring. Recent NATO ministerial meetings focused on unity and defense spending boosts without escalation signals. This near-unanimous pricing reflects Article 5's historical rarity—invoked once since 1949—and the compressed timeline curbing surprise risks. Realistic catalysts for reversal include a sudden Russian incursion into Poland or the Baltics, or cyber incidents deemed equivalent to armed attack, though current evidence suggests low likelihood.