Analysis
SpaceX's June 12 debut at a $1.77 trillion valuation -- the largest IPO ever completed -- helped make Q2 2026 the biggest quarter for U.S. IPO proceeds on record, at $104.8 billion, according to Renaissance Capital. Two names now anchor what's left of the year's marquee pipeline:
- OpenAI -- confidential S-1 filed June 8; public filing expected in the coming weeks ahead of a targeted September listing, at roughly $2 billion in monthly revenue and still unprofitable
- Anthropic -- targeting an October listing, with Wall Street reportedly modeling a $190-200 billion 2028 revenue forecast as part of the roadshow pitch, following the company's own $11.5 billion Q2 revenue report this week
- Discord and Revolut -- both at earlier stages of the public filing process, per multiple 2026 IPO pipeline trackers, without confirmed timelines
The gap between SpaceX's completed listing and OpenAI's or Anthropic's pending ones is instructive: SpaceX went public with more than two decades of operating history, a diversified launch-and-Starlink revenue base, and profitability already demonstrated. OpenAI and Anthropic are both trying to list on the strength of revenue growth rates -- 2026 monthly revenue in the low billions, scaling fast -- rather than profitability, a structure closer to the SaaS IPO wave of the early 2020s than to SpaceX's.
Reddit's addition to the S&P 500 this year is a useful marker of what comes after a successful debut: index-fund inclusion creates a durable, largely passive demand floor that neither OpenAI nor Anthropic can access until they've traded publicly long enough to qualify. For now, both companies are pricing their offerings on growth-story multiples in a market that's shown, via SpaceX's reception, real appetite for outsized AI-adjacent valuations -- but multiples compress fast if either company's growth rate decelerates before the lockup period ends.
