OpenAI IPO speculation persists on valuation expectations; market watches for Microsoft equity commitment and capital structure clarity.
OpenAI, the company behind ChatGPT, confidentially filed an S-1 registration statement with the SEC on May 22, 2026, formally beginning its process of going public. Goldman Sachs and Morgan Stanley are leading the deal, with the company targeting a public debut "as soon as the fourth quarter" of 2026. OpenAI reported generating $2 billion in revenue per month, growing four times faster than Alphabet and Meta did at comparable stages, with enterprise now making up more than 40% of revenue and on track to reach parity with consumer by the end of 2026. However, the company is not yet profitable.
The confidential filing came days after a California jury on May 18 dismissed Elon Musk's lawsuit on statute-of-limitations grounds, removing a significant source of legal uncertainty as OpenAI evaluates a public offering. A confidential S-1 allows a company to begin SEC review before making its prospectus public, enabling the regulatory process to advance while details remain under wraps.
OpenAI's IPO timing remains uncertain. While earlier reports suggested a late 2026 listing, Reuters reported in late June that the company is now considering waiting until 2027. The company has not disclosed the size, terms, timing, exchange or final valuation of any offering.
OpenAI's private-market valuation increased from roughly $86 billion in early 2024 to $852 billion in March 2026—a nearly tenfold increase in about two years. The IPO will arrive alongside significant competitive developments: Anthropic was valued at $965 billion following its June 2026 funding round, and SpaceX went public on June 12, 2026, reaching a market capitalization of approximately $2.1 trillion after its first day of trading.
Private valuations reflect terms negotiated between specific buyers and sellers without the continuous price discovery of public exchanges. The IPO price will reflect public demand at listing, which may diverge significantly from private figures. By the time of the IPO, OpenAI's investor base will be unusually broad for a company that has not yet traded publicly, with the March 2026 round distributing equity across institutional, strategic and individual holders.
Some vehicles holding pre-IPO companies trade far above net asset value. Destiny Tech100 (DXYZ), an exchange-traded closed-end fund, has at times traded at extreme premiums to NAV, reflecting scarce share supply rather than underlying value. ARK's Venture Fund (ARKVX), a closed-end interval fund that transacts at NAV, has held OpenAI since 2024. Secondary platforms such as Forge Global and EquityZen may offer access to OpenAI shares for qualified buyers meeting SEC net-worth or income thresholds, though liquidity is limited, minimums are high and prices may diverge from the latest primary round.
If OpenAI completes an IPO, shares will trade on a public exchange through standard brokerages with no accreditation required. The public S-1 amendment filed before the roadshow will be the first look at audited financials, full risk factors and revised Microsoft terms. IPO shares are typically allocated to institutions during the roadshow; retail investors usually access them at or after day one. A 180-day lock-up typically restricts insiders from selling; when large tranches expire, selling pressure can weigh on the price.
Competition significantly affects valuation expectations. Anthropic reported generating roughly $10.9 billion in Q2 2026 revenue with about $559 million in operating income, marking its first profitable quarter, while OpenAI remained loss-making in Q1. Anthropic has noted that this profitability may not be sustained, partly reflecting a ramp-up discount on its compute deal with SpaceX. With public investors evaluating both companies nearly simultaneously, Anthropic's profitability timeline may shape the premium markets assign to OpenAI.
OpenAI's capital needs remain substantial. The company spent $34 billion last year, including roughly $19 billion on research and development and nearly $6 billion on sales and marketing—costs that underscore why investors may focus closely on OpenAI's path to profitability once public financials become available.
OpenAI's confidential filing marks the beginning of what could become one of the largest and most closely watched IPOs in history, but many critical details remain unknown. Investors still do not have access to audited financial statements, full risk disclosures, offering terms or a final valuation, all of which will be revealed only if and when the company publicly files its registration statement.