After 24 years as a private company, SpaceX has filed an S-1 with US regulators signaling a move to go public. The lengthy filing proposes raising roughly $75 billion from new investors and values the company at up to $1.75 trillion — a price that would place SpaceX among the world’s biggest public firms if the offering goes ahead.
The IPO would cap a rare combination of moonshot ambitions and concentrated control. Elon Musk, who founded and runs SpaceX, currently owns an estimated 42% of the company. At a $1.75 trillion valuation that stake would be worth about $735 billion. Combined with his holdings in Tesla, xAI and other ventures, the public listing could push his net worth past the $1 trillion mark, potentially making him the world’s first trillionaire. A dual-class share structure described in the filing would give Musk more than 80% of voting power, effectively insulating him from shareholder pressure and preserving his ability to pursue long-term, high-risk projects.
What would investors be buying into? SpaceX lays out an expansive vision: not just launching rockets and servicing satellite customers, but building the infrastructure to make humanity multi-planetary. The centerpiece is Starship, the company’s massive reusable spacecraft, slated for uncrewed trips to Mars by around 2030. Those initial missions would test landing systems and start establishing basic infrastructure; crewed missions would follow later. The company envisions eventually supporting self-sustaining settlements on Mars, with ambitions for up to a million inhabitants over time.
Closer-term steps include lunar bases, fuel depots and factories on the moon to reduce the cost of sending materials from Earth, and, further out, asteroid mining to tap platinum, nickel, gold and water ice. Analysts quoted in the filing predict large-scale asteroid resource extraction is unlikely until the 2040s or later, but SpaceX sees the moon and near-Earth objects as part of a phased expansion off-planet.
The filing also describes more unconventional commercial ideas, such as placing large AI data centers in orbit. In theory, satellites powered by continuous sunlight and cooled by the vacuum of space could host compute-intensive AI training with lower energy and cooling costs than comparable terrestrial facilities. The document frames these and other ventures as ways to diversify revenue and reduce dependence on any single market.
Despite the grand plans, SpaceX remains unprofitable. The company reported a net loss of $4.94 billion in 2025, largely driven by heavy investments in Starship development, satellite deployment and AI initiatives. The S-1 is explicit about risks: a history of losses, the possibility of continued unprofitability, and a long list of space-specific hazards, including radiation, micrometeoroids, orbital debris and the potential for human injury or death during operations.
The IPO would create substantial windfalls for early investors and executives. According to reporting on the filing, executives such as SpaceX President Gwynne Shotwell and CFO Bret Johnsen could see stakes worth more than $1 billion. Longtime investors and founders could also realize tens of billions in paper gains.
Wall Street has already lined up for what could become the largest stock offering ever, with Goldman Sachs named as lead underwriter. If SpaceX raises the targeted ~$75 billion, that would far exceed the previous record set by Saudi Aramco’s roughly $29.4 billion listing in 2019 and dwarf Alibaba’s $22 billion offering in 2014. At a $1.75 trillion valuation, SpaceX would rank alongside the largest technology and semiconductor firms globally.
But the size of the ask and the scale of SpaceX’s ambitions have prompted skepticism among some analysts. Critics argue that large valuations typically presuppose steady profits and predictable cash flows — neither of which SpaceX can promise given its current losses and the technological and regulatory uncertainties of operating beyond Earth. Governance concerns also persist: Musk’s near-total voting control via dual-class shares echoes past controversies at Tesla and his other companies, where critics have warned about weak board independence and conflicts of interest.
The filing also highlights the unique and unpredictable challenges of commercializing space. Beyond engineering hurdles, SpaceX will face regulatory, safety and geopolitical considerations as it seeks to build lunar infrastructure, mine asteroids, or operate orbital data centers.
Trading is expected to begin on the Nasdaq next month, and the public market will be the ultimate test of whether investors are willing to bet on SpaceX’s blend of audacious goals and long timelines. The IPO will not only reshape the company’s capital structure but could reshape wealth: for Musk, early backers and long-time employees, the listing could convert decades of private investment into historic personal fortunes. For the broader market, it will be a high-stakes wager on whether bold vision and heavy spending can translate into sustainable, profitable business on Earth — and beyond.