NATO's institutional framework, including the North Atlantic Treaty’s Article 13 withdrawal process and U.S. statutory requirements for congressional approval of any exit, anchors trader confidence that the alliance will remain intact through 2026. Recent developments reinforce this view: the July 2026 Ankara summit produced a communiqué reaffirming Article 5 commitments and European defense integration within NATO, while all 32 members participated in October military coordination with Ukraine. Ongoing tensions with Russia over exercises near Kaliningrad and hybrid threats have prompted alliance-wide responses rather than fractures. Although U.S. rhetoric on burden-sharing and potential force adjustments has created uncertainty, no member has issued a denunciation notice, and alternative European security formats remain supplementary. Late developments such as coordinated withdrawals by a majority of members or a formal treaty repeal could still shift probabilities, yet both face steep procedural and political hurdles.