Will SpaceX’s initial public offering occur in June 2026 (ET)?

Prediction markets put the probability at 95%: Will SpaceX’s initial public offering occur in June 2026 (ET). Currently, markets see this as likely (95% YES). SpaceX IPO Filing: Musk’s Control, xAI Losses, and Anthropic’s Massive AI Deal - Barron's.

What’s Happening

SpaceX filed paperwork on Wednesday, May 20, 2026 to take its rocket and satellite empire public, giving investors their first detailed look at Elon Musk's privately held company and setting up what would be the largest stock market debut in history. The filing targets a valuation of approximately $1.5 trillion and projects future revenue opportunities of $28.5 trillion, including $26.5 trillion from AI projects, $1.6 trillion from Starlink broadband, $740 billion in Starlink mobile, and $370 billion from space-enabled services. The disclosure also revealed Musk's continued voting control, losses at sister company xAI, and a substantial AI compute arrangement with Anthropic. [New York Post, May 20]

The question of whether SpaceX's initial public offering will occur in June (ET) matters because the listing would unseat Saudi Aramco's 2019 debut as the biggest IPO on record and reset benchmarks for the 2026 new-listings calendar. Reuters reported that Musk's company is positioning to beat OpenAI and Anthropic to public markets, with Wall Street underwriters describing 2026 as a potential breakout year for U.S. IPOs supported by a deep pipeline of high-profile candidates. A successful June pricing would give Musk additional capital to fund Starship development, Starlink expansion, and the AI infrastructure commitments disclosed in the S-1, while subjecting SpaceX to public-company reporting standards for the first time in its 24-year history. [Yahoo Finance, May 20]

Operational execution remains the principal risk to the June calendar. On Thursday, May 21, 2026, SpaceX scrubbed a high-profile Starship test flight from Starbase, Texas, after engineers were unable to resolve last-minute technical issues during multiple countdown holds, with the company now eyeing a follow-up attempt in the coming days. The scrub arrived one day after the IPO filing and underscored the engineering cadence the prospectus is asking investors to underwrite. Bankers and the company are still targeting a June 2026 pricing window, meaning the next several weeks of regulatory review, roadshow scheduling, and Starship test outcomes will determine whether SpaceX's initial public offering occurs in June (ET) or slips into the third quarter. [Times of Israel, May 22]

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