OpenAI’s accelerating revenue trajectory, with annualized run-rate approaching $70 billion amid surging enterprise demand, underpins the 55.6% market-implied odds for a closing market cap above $1.5 trillion upon IPO. Recent reports of early-stage talks for a $30 billion bridge round at roughly $1.4 trillion valuation—following the March 2026 round at $852 billion—signal strong investor appetite and position the company for further appreciation before a public debut. CEO Sam Altman’s September 2026 statements prioritizing AI safety have shifted the timeline firmly into 2027, supporting the 23.8% probability assigned to no IPO by December 31, 2027, while lower valuation brackets reflect residual uncertainty around execution risks, competitive dynamics, and regulatory hurdles ahead of potential listing catalysts.