Traders assign a 95% probability against NATO invoking Article 5 before 2027 because the Russia-Ukraine conflict has remained contained to Ukrainian territory without direct strikes on alliance members, while NATO has reinforced its eastern flank through troop deployments and exercises without crossing escalation thresholds. No major military incidents involving NATO states have occurred in recent months, and diplomatic channels continue to manage tensions with Russia alongside parallel concerns over Iran and China. This consensus reflects the absence of verified triggers under the collective defense clause since the market's focus period began. Plausible shifts could still arise from a sudden Russian advance into NATO-adjacent areas, accidental cross-border incidents, or rapid escalation in another theater that draws in a member state.