US intelligence assessments this week confirm Iran's nuclear breakout timeline remains 9-12 months despite US-Israeli airstrikes on facilities like Natanz and Yazd since the February 2026 conflict escalation, with satellite analysis showing limited new damage to key enrichment and supply chain elements. IAEA February reports noted Iran's 440kg stockpile of 60% enriched uranium—short of weapons-grade—but no verified weaponization activities, amid ongoing verification challenges. Tehran has softened its stance in recent US negotiations, proposing enrichment caps at 3.5% as ceasefire talks advance, reinforcing trader consensus that Supreme Leader oversight and sanctions preclude a nuclear test or declaration before 2027 absent a sudden policy shift.