SpaceX has reportedly filed confidentially for an initial public offering targeting a valuation of up to $1.75 trillion, according to a curated industry newsletter published April 3. If completed at that figure, it would rank as the largest IPO in history. The filing stage matters: a confidential submission to the SEC under the JOBS Act is a formal regulatory step, not a roadshow. It means SpaceX has moved past the investor pitch phase and into the paperwork phase, a meaningful distinction that prior coverage sometimes blurred.
The IPO pitch itself, per regional financial reporting, centers on a narrative that goes well beyond rockets. SpaceX is reportedly positioning its AI data center and lunar manufacturing ambitions as the core investment thesis, per reporting from The Star. That framing matters to investors evaluating whether $1.75 trillion is a space company valuation or an AI infrastructure valuation.
Two other companies are moving at the same time.
OpenAI reportedly closed a $122 billion funding round at an $852 billion valuation – described by the same April 3 newsletter as the largest private funding event in Silicon Valley history. The round doesn’t mean an IPO is imminent, but at $852 billion, OpenAI is operating at a scale where public markets become the logical next liquidity event for early investors. Anthropic, meanwhile, is reportedly considering an October 2026 IPO at a potential $2 trillion valuation, according to the same source. That timeline would put Anthropic on the market before SpaceX if both proceed.
All three figures, $1.75T, $852B, $2T, carry an important caveat. The primary source for each is a curated newsletter that aggregates reporting rather than breaking news directly. Reuters and Bloomberg would normally serve as anchor verification for figures of this magnitude, and those confirmations aren’t available in this cycle. Treat each number as reported, not confirmed.
That said, the directional signal is hard to ignore. Three of the most closely watched AI companies are reportedly moving toward public markets in the same twelve-month window. Q1 2026 global venture funding reached $300 billion, a figure Crunchbase characterized as a record, providing some context for the capital base driving these valuations. Investors who deployed at earlier valuations are facing a window question: public markets in 2026, or wait.
What to watch: The confidential filing process typically precedes a public S-1 by three to six months. If SpaceX’s filing is genuine, a public document could surface by late summer. Anthropic’s reported October target makes the fall a potential inflection point for the entire AI IPO cohort. Any SEC registration statement from any of these three companies would constitute primary source confirmation and trigger material price discovery for the broader AI investment landscape.
The practical implication for investors and analysts: these are reported numbers, not valuations set by a market. The distance between a confidential filing valuation target and an actual IPO price has historically been significant, in both directions. The 2026 AI IPO pipeline is real in the sense that companies are moving. Whether the valuations hold is the question the public market will eventually answer, not the newsletter.