“Starship is designed to deliver 100 metric tons to Earth's orbit in a fully reusable configuration while enabling rapid turnaround times akin to commercial aviation,” SpaceX said in its IPO prospectus. Investors are due to see about 555.6 million SpaceX shares priced at $135 each in an offering expected to raise roughly $75 billion, AP reported, and Reuters said the company is targeting a valuation of about $1.8 trillion with the deal scheduled for Friday. Appetite has been intense, with Reuters reporting more than $70 billion in retail orders and earlier estimates of overall demand above $250 billion, while coverage of the prospectus highlights governance concerns tied to Elon Musk's control. The offering ties SpaceX's public growth case to a mass deployment of Starlink satellites and a scaled Starship system, even as the vehicle remains a work in progress.
"Scaling hardware is arguably one of the most difficult tasks, and one that sets companies apart," said Daniel Metzler, CEO of Isar Aerospace.
Testing momentum beyond SpaceX
Stoke Space reported concrete engineering progress on its medium-lift Nova vehicle in early June 2026, according to NASAspaceflight coverage summarized in Ars Technica. At its Moses Lake, Washington, test site the company completed a proto-qualification campaign for Nova's reusable first stage, running 46 structural verification tests of the first-stage flight article and exercising fluid systems, avionics and ground support systems over roughly a three-week period.
Stoke's engines have already accumulated hours of vertical hot-fire testing at the twin-cell firing stand at Moses Lake. The company says the first stage measures 27.1 metres and is designed for either return-to-launch-site recovery or recovery on a droneship. Stoke plans to install the vehicle's engines over the next few months, complete further integrated testing, and ship the stack to Cape Canaveral for final integration ahead of a target debut at the end of 2026.
The progress at Stoke and the emphasis on reusability elsewhere show Metzler's point about scaling hardware. Smaller launchers are proving out iterative test campaigns while the industry chases higher payload capacity and faster cadence.
SpaceX goes public while Starship needs more work
SpaceX moved into the public markets this week with an IPO prospectus that links the company's future growth to a mass deployment of Starlink satellites and the scaled Starship system.
CNBC reported the prospectus shows SpaceX has spent more than $15 billion on Starship development, and the company is positioning the vehicle as central to higher payload capacity and a much faster launch cadence.
The timing is notable. SpaceX carried out a high-profile Starship test flight in late May that placed dummy satellites into orbit but fell short of several propulsion and reusability objectives, CNBC reported.
The flight encountered Superheavy anomalies after stage separation and a subsequent loss of control during an engine relight sequence. But that mixed outcome highlights limits the company must clear even as it seeks market capital in the public markets.
Investors haven't waited for perfect engineering. Reuters reported more than $70 billion in orders from retail investors and earlier estimated overall investor demand at over $250 billion. Reuters also said deliberations continued over how large a retail allocation to offer, with at least 20 percent of the shares expected to be set aside for individual investors according to Bloomberg as cited by Reuters.
The prospectus and reporting by AP emphasise that Elon Musk will retain control through a special class of voting stock. That governance structure, including mandatory arbitration provisions and the concentration of decision rights, has drawn criticism from some public pension funds. For many institutional and retail buyers, the governance trade-offs appear to be part of the price of getting exposure to the company’s long-term plans.
For rival and emerging launchers, the SpaceX listing is both an opportunity and a test. A successful IPO that funds Starship scaling could reshape demand for heavy-lift services and the dynamics of satellite deployment. At the same time, the engineering hurdles on Starship illustrate why companies such as Isar Aerospace and Stoke Space highlight steady, test-driven hardware scaling as their competitive case.
In short, public markets are betting on Starship’s eventual success even as engineers chase the changes the vehicle needs to meet the promise laid out in the prospectus. That split between market enthusiasm and engineering reality is the dominant tension in the sector this week.
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The next event on the calendar is Isar Aerospace's delayed second Spectrum flight, scheduled for a launch window between June 15 and June 21, 2026. Originally reported by arstechnica.com.
This article was created with AI assistance.
