The Starlink Argument
When Brad Gerstner of Altimeter Capital and Gavin Baker of Atreides Management discuss SpaceX, they are not really talking about rockets. The launch business is the brand; Starlink is the thesis.
According to reporting from MarketWatch, Gerstner flagged Starlink's satellite-internet subscriber growth as the factor most likely to surprise public investors if SpaceX eventually lists. The logic is straightforward enough: launch revenue is lumpy, contract-dependent, and tied to a competitive market that includes United Launch Alliance and a growing field of international entrants. Starlink, by contrast, generates recurring subscription revenue from a customer base that, in many geographies, has no meaningful alternative.
That distinction matters enormously for how a public company gets valued. Recurring, high-margin broadband revenue commands a very different multiple than aerospace services. If Starlink's subscriber count and average revenue per user continue on their current trajectory, the blended valuation math for a combined SpaceX entity could look quite different from what the launch-business comparables would suggest on their own.
What the Private Valuation Already Assumes
SpaceX's most recent private funding rounds have placed the company's valuation in the range of $350 billion, a figure that has circulated widely in secondary markets. To work backward from that number to something resembling a reasonable public-market entry point, an investor needs to hold several assumptions simultaneously: that Starlink scales to tens of millions of subscribers globally, that launch margins improve as Starship reaches operational cadence, and that no single regulatory or geopolitical event disrupts either business materially.
None of those assumptions are unreasonable. None of them are guaranteed, either. Private markets have a well-documented tendency to let optimistic scenarios compound without the quarterly earnings call that forces a reckoning.
The Nvidia Thread
The Gerstner-Baker conversation also surfaced a separate question about Nvidia — specifically, whether the company might pivot some portion of its strategic focus as the AI infrastructure buildout matures. Baker raised the possibility without offering a firm directional call. Nvidia's current position as the dominant supplier of AI training hardware is not in dispute; what is less clear is how the competitive landscape looks in three to five years as custom silicon from hyperscalers and new entrants matures.
The pivot framing is worth noting. It suggests that at least some sophisticated investors are beginning to model Nvidia's future as something other than a straight-line extrapolation of its current GPU dominance.
The IPO Question
Musk has not committed to a SpaceX IPO timeline. The company has discussed the possibility of a separate Starlink listing, which would let public investors access the broadband business without taking on the full complexity of the launch operation. That structure would also, conveniently, allow SpaceX to retain the higher-multiple asset privately while offering a more legible story to retail investors.
Whether that happens, and when, depends on factors that have nothing to do with investor enthusiasm — including Musk's own priorities, the regulatory environment for satellite broadband, and whether Starlink's cash generation makes external capital unnecessary in the near term.
Gerstner and Baker are right that Starlink is the variable most worth watching. They are also, by definition, talking their book in a market where private valuations are not subject to the same disclosure requirements as public ones.