SpaceX Valuation: Deconstructing the Valuation Gap between SpaceX and Public Peers

As of early 2026, SpaceX's private market valuation continues to command a significant premium, reflecting investor confidence in its vertically integrated approach to launch and satellite communications. This stands in stark contrast to the valuations of its publicly traded peers, which operate as more specialized entities. For investors, this raises a critical question: Does the valuation gap represent a durable competitive moat for SpaceX, or does it signal potential underpricing in public companies like launch provider ROCKET LAB CORPORATION, satellite services firm VIASAT, INC., or L-band operator Iridium Communications Inc.? Analyzing the fundamental performance of these public companies provides a necessary framework for calibrating investment theses in the evolving space economy.

Operating Performance

The operational profiles of the public space companies highlight distinct strategic tradeoffs. Rocket Lab embodies the high-growth, high-investment model, reporting a 41.8% revenue CAGR but sustaining significant operating losses of $229 million on $602 million in revenue for fiscal year 2025. This results in deeply negative free cash flow of -$322 million as it scales its launch and space systems segments. In contrast, Iridium Communications represents maturity and profitability. With a modest 6.5% revenue CAGR, it generated $236 million in operating income and $300 million in free cash flow, translating to a robust 34.4% FCF margin. Viasat sits between these two, a large-scale operator with $4.52 billion in revenue and a 17.5% CAGR, yet it posted an operating loss of $97 million in 2025 as it works through large-scale integrations and capital projects. While SpaceX's financials remain private, its reported trajectory suggests a unique combination of hyper-growth from Starlink and established profitability from its launch services—a blend not currently available in a single publicly traded entity.