Will Russia test a nuclear weapon by September 30 2026?

Russia has maintained a moratorium on explosive nuclear tests since its last detonation in October 1990, even after withdrawing CTBT ratification in 2023 and allowing New START to expire in February 2026. Trader assessments of near-term testing reflect Russia’s ongoing modernization of delivery systems, including the May 2026 Sarmat ICBM flight test and multiple strategic nuclear force exercises, alongside infrastructure activity at the Novaya Zemlya site. Official statements from Putin and Lavrov emphasize readiness to respond in kind to any U.S. explosive test while avoiding unilateral resumption, amid broader nuclear signaling tied to the Ukraine conflict. Key variables include future U.S. policy shifts, verification gaps, and scheduled diplomatic or military developments that could alter escalation dynamics before any market resolution window.

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