The market-implied 82.5% probability on “No” for a 2026 engagement stems primarily from the continued absence of any official announcement, public proposal, or confirmed milestone despite the couple’s ongoing relationship. Insider reports from early 2026, including Us Weekly sources, indicated Kylie Jenner and Timothée Chalamet had privately discussed engagement after more than three years together, with appearances at events like the BAFTAs fueling speculation. However, no verified statements, rings, or family confirmations have materialized by August, and celebrity timelines frequently shift without public signals. Traders price in the deliberate pacing typical of high-profile pairings and the strict resolution criteria requiring a clear announcement by year-end, while acknowledging the inherent uncertainty in personal matters.