Persistent deadlock in negotiations over territorial concessions, security guarantees, and alliance limits has produced only intermittent diplomatic contacts without a binding agreement, keeping any Ukraine peace referendum before the end of 2026 highly improbable. Ukrainian law requires a nationwide vote for territorial changes, yet martial law currently bars such ballots, while polling shows sustained public resistance to major concessions. Recent U.S.-mediated trilateral meetings and planned October talks have not narrowed core gaps, and military assessments point to continued fighting into 2027. Traders view the narrow remaining window and unresolved barriers as decisive. A rapid breakthrough yielding a ceasefire followed by a swift referendum process could still alter the outcome before December 31, 2026.