Will any nuclear weapon be detonated anywhere in the world in 2026?

This market asks whether any actual fission or fusion nuclear explosion occurs anywhere during calendar 2026; conventional strikes, missile launches, nuclear exercises, and attacks on nuclear facilities do not qualify. The breaking report is corroborated: US forces struck Iranian launchers after a month-long pause and Iran retaliated with ballistic-missile attacks on US-operated bases, but all reported weapons were conventional and there is no evidence of a nuclear detonation so far this year. The renewed US-Iran conflict increases the remaining-year tail risk through escalation, miscalculation, or pressure on Iran’s nuclear decisions, against a broader backdrop of weakened arms-control guardrails and elevated terrorism concerns. External sentiment did not provide a directly matching nuclear-detonation market, so the quote rises modestly from the low-single-digit baseline rather than treating the conventional exchange as evidence that a detonation has occurred or is imminent.