Sydney Sweeney’s market-implied 97.4% probability of “No” on a confirmed 2026 conversion to Judaism stems from the complete absence of any official announcement, formal process documentation, or credible reporting that such a step has occurred. Recent late-September rumors, triggered by her reported attendance at Rosh Hashanah services with boyfriend Scooter Braun and amplified by unverified gossip accounts, center only on speculation that she is “considering” or “eager” to convert amid their relationship. Multiple outlets explicitly note the lack of confirmation from Sweeney, Braun, or Jewish institutions, and conversion requires a structured Beit Din process that has not been publicly evidenced. Traders view the gap between synagogue visits and a completed, confirmed conversion as decisive in the short remaining timeframe. An upset would require Sweeney or verified Jewish authorities to publicly confirm a finished conversion before year-end, an outcome without current precedent or momentum.