OpenAI’s confidential SEC filing in June 2026 and subsequent internal deliberations have produced a clear consensus that an IPO before year-end is unlikely, reflected in the 96.5% market-implied probability of no listing by December 31. CEO Sam Altman’s September 12 statements to Fortune emphasized prioritizing AI safety and alignment work over a public debut, rejecting a 2026 timeline as ill-advised amid regulatory scrutiny and model risks. This stance aligns with earlier reports of valuation ambitions near $1 trillion clashing with market volatility, including post-SpaceX swings, and the absence of pre-IPO investor meetings. Traders price in these barriers, recognizing that only an abrupt reversal in safety priorities or external pressure could reopen a narrow window before resolution.