Russia maintains a low implied probability of conducting a nuclear explosive test through late 2026, consistent with its self-imposed moratorium since 1990 despite de-ratification of the Comprehensive Nuclear Test Ban Treaty in 2023 and elevated activity at the Novaya Zemlya site. Recent developments center on non-explosive trials, including a solid-fuel ICBM launch from Plesetsk in late August 2026, ongoing sea trials of the Khabarovsk submarine configured for Poseidon systems, and a reported failed attempt to test the Poseidon torpedo in the Arctic in early September. U.S. intelligence assessments attribute the latter to technical constraints, with the testing window narrowing ahead of seasonal ice formation. Diplomatic contacts and UN warnings on escalation risks have reinforced signaling without verified detonations, while infrastructure upgrades and delivery-system exercises remain the dominant near-term factors. Any shift would require explicit policy announcements or credible reporting of an explosive event.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日No credible reports of Russian nuclear test amid heightened geopolitical tensions
September 30, 2026 dips to 1%1%
Despite ongoing tensions and speculation about nuclear escalation, no credible reporting emerged attributing any nuclear test to Russia during the analysis window, leading to a sharp market reassessment and decline in test probability.
United Nations warns nuclear weapon states refusing test ban treaty ratification
September 30, 2026 dips to 1%1%
On September 1, 2026, the United Nations highlighted that Russia, along with other nuclear states, refuses to ratify the Comprehensive Nuclear-Test-Ban Treaty, warning that any new nuclear test could trigger another arms race. This underscored the geopolitical risks but no test occurred, maintaining low market probabilities for a Russian nuclear test by September 30, 2026.




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