OpenAI is moving closer to one of the most anticipated stock market debuts in history, with plans to file for an initial public offering within days, according to the Wall Street Journal.
Chief executive Sam Altman is targeting a public debut in September 2026, marking a major shift for a company that began as a nonprofit research lab in 2015.
1. It could be the biggest IPO ever
OpenAI is reportedly aiming to raise $60bn (€55.4bn) in its stock market debut. According to Deutsche Bank Research, this would more than double Saudi Aramco's 2019 listing of $25.6bn (€23.6bn), the largest IPO on record at the time.
There is a caveat. SpaceX, which filed its own IPO prospectus this week, is targeting a raise of up to $75bn (€69.1bn). It is seeking a valuation of between $1.75tr (€1.61tr) and $2tr (€1.84tr). This puts the two companies in direct competition for the largest listing in history.











