Trader consensus on low odds for an Iranian nuclear device before 2027 stems primarily from US and Israeli strikes in 2025 and early 2026 that damaged or destroyed major enrichment sites at Natanz, Fordow, and Isfahan, extending estimated breakout timelines to roughly one year or longer according to US intelligence evaluations. IAEA reporting confirms loss of continuity over declared inventories of near-weapons-grade material since mid-2025, with no verified rebuilding of cascades or weaponization activity observed. Ongoing US-Iran diplomatic talks, including provisions for resumed inspections under interim accords, further constrain near-term advances. Scenarios that could shift probabilities include undetected recovery of surviving 60% enriched stockpiles, accelerated covert construction at sites like Pickaxe Mountain, or a rapid policy shift toward weaponization amid stalled negotiations.