Traders assign a 96.5% probability against Iran acquiring a nuclear weapon before 2027 because repeated U.S. and Israeli strikes since June 2025 have severely damaged or sealed enrichment facilities at Natanz, Fordow, and related sites, while eliminating most centrifuges and rendering the 60% enriched uranium stockpile inaccessible. The most recent verifiable development, satellite imagery from early October 2026 showing renewed vehicle traffic and excavation at the previously struck Minzadayi compound, indicates reconstruction efforts but no resumption of enrichment or weaponization activities. U.S. intelligence and IAEA assessments place breakout time at roughly one year or longer even if Iran commits to a weapons path, and ongoing diplomacy plus U.S. military posture through the November 2026 midterms further constrain rapid progress. A sudden Iranian decision to divert surviving material or accelerate covert work at deep underground sites like Pickaxe Mountain remains the primary scenario that could alter this consensus within the narrow remaining window.