The Number on the Cover Sheet

When a company files for an IPO at a $1.75 trillion valuation, the polite thing to do is admire the ambition. David Trainer, CEO of research firm New Constructs, is not doing the polite thing.

Trainer has issued a formal recommendation that investors avoid the SpaceX IPO, arguing the valuation is not a bold projection but a mathematical problem. His position, reported by Fortune, is direct: the price requires SpaceX to generate a level of profit that its current business does not support and that very few companies in history have ever achieved.

What the Valuation Actually Implies

A $1.75 trillion market cap is not just a large number — it is a claim about future cash flows, discounted back to today. To arrive at that figure through conventional valuation methodology, you need to assume that SpaceX will eventually produce earnings on a scale that places it among the most profitable enterprises ever built.

That is not impossible. SpaceX has genuine competitive advantages: a reusable launch system that has structurally lowered the cost of access to orbit, a Starlink satellite internet business generating recurring revenue, and a government contract base that provides some floor under near-term cash flows.

But advantages are not the same as earnings. And a valuation of this size is pricing in the earnings, not the advantages.

The Cap Table Context

There is a structural point worth making clearly, because it tends to get lost in IPO coverage.

Early investors in SpaceX — including employees, venture funds, and private equity participants who bought in at much lower valuations — are not taking the same risk as someone buying shares at the IPO price. The $1.75 trillion figure is the price at which new public investors enter. It is not the price at which the company's existing stakeholders are exposed.

This is not a criticism of SpaceX or its backers. It is simply how IPOs work. The question for a prospective public investor is not whether SpaceX is a remarkable company — it may well be — but whether $1.75 trillion is the right price to pay for a share of whatever it becomes.

What Trainer Is and Isn't Saying

Trainer's recommendation is a valuation call, not a verdict on the business. New Constructs is not arguing that SpaceX will fail, that Starlink is a bad product, or that Elon Musk cannot execute. The firm is arguing that the assumptions required to justify the entry price are too demanding to recommend to investors.

That is a narrower and more defensible claim than it might appear. It is also the kind of claim that tends to be unpopular in the weeks before a high-profile IPO, when narrative momentum is at its peak and skeptics are routinely described as missing the point.

The Honest Uncertainty

SpaceX is genuinely difficult to value. It operates across launch services, satellite internet, and longer-horizon projects with no obvious public-market comparables. Standard discounted cash flow models strain under that kind of uncertainty.

But difficulty of valuation is not an argument for a higher price. If anything, it is an argument for a margin of safety — which is precisely what a $1.75 trillion entry point does not offer, at least according to Trainer's analysis.

Public market investors will have to decide how much of that uncertainty they are willing to absorb, and at what price.