OpenAI’s decision to delay any public listing until 2027 drives the 96.4% market-implied odds against a $1 trillion-plus IPO before then. CEO Sam Altman has cited heightened AI safety concerns and the need to manage increasingly capable large language models as a private company, while reports confirm a confidential S-1 filing with no 2026 timeline set. The firm is instead pursuing a $30 billion bridge round targeting roughly $1.4 trillion valuation, following its March 2026 raise at $852 billion, to fund infrastructure without public-market scrutiny. This aligns with banker advice on tech volatility and positions OpenAI ahead of rivals like Anthropic. A sudden resolution of safety issues or regulatory shifts could still accelerate plans, though recent statements make that unlikely before year-end 2026.