**Trader consensus on the Polymarket question "Will the U.S. invade Iran before 2027?" reflects an 89.5% implied probability for "No," shaped by the trajectory of the ongoing U.S.-Iran conflict that began with joint U.S.-Israeli strikes on February 28, 2026.** Direct military exchanges escalated into a naval blockade and limited operations but transitioned into a Pakistan-mediated ceasefire by early April. Negotiations have since focused on nuclear limits, Strait of Hormuz access, sanctions relief, and verification, with U.S. and Iranian officials reporting proximity to an interim framework or memorandum of understanding as recently as mid-June 2026. These diplomatic efforts, including high-level talks in Islamabad and statements signaling an agreement could be finalized imminently, have lowered expectations of a full-scale ground invasion or territorial offensive by the United States before the end of 2026. Historical patterns of U.S. military restraint in large-scale occupations of Iran, combined with the current emphasis on negotiated de-escalation over regime-change operations, reinforce the prevailing market pricing. Unresolved issues around proxies, enrichment, and security guarantees remain, but the absence of recent escalatory triggers supports the strong "No" positioning.