Australian mining magnate Gina Rinehart has acquired a stake worth over $1 billion in Elon Musk's Space Exploration Technologies Corp. (SpaceX) through its record-breaking initial public offering. The investment, made via her firm Hancock Prospecting, underscores a strategic shift beyond traditional mining into frontier technologies critical to Western nations. Rinehart, cited by the Australian Financial Review, praised Musk for building two of the world's top-10 companies by market capitalization and keeping American technology at the forefront.

SpaceX's highly anticipated IPO proved one of the most sought-after listings in recent memory, with the aerospace giant surging almost 20% on its market debut and reaching a valuation of about $2.1 trillion. While Hancock did not disclose the exact size of its holding, the Wall Street Journal reported that Rinehart's stake was worth more than $1 billion. The company confirmed it had not bought or sold any additional shares after receiving its allocation in the $75 billion IPO. SpaceX debuted at $150 a share, above its $135 issue price, before closing at $192.50 after only two trading sessions.

For Rinehart, whose fortune Forbes places at around $25 billion, the investment fits within a broader strategy extending beyond mining. Hancock Prospecting is the world's fifth-largest iron ore producer and holds significant positions in critical minerals through stakes in Lynas Rare Earths Limited, Liontown Resources, and Arafura Rare Earths Limited. Roughly 10% of Rinehart's wealth is tied to rare earth investments. In the United States, Hancock holds a $860 million stake in MP Materials Corp., a company deemed strategically important to America's supply chain security.

The SpaceX stake highlights the growing interconnectedness between mining and frontier technologies. Rare earth elements Hancock is backing are critical ingredients in permanent magnets used in satellites, rockets, and electric vehicles. Every expansion of SpaceX's Starlink network and launch capabilities has the potential to increase demand for these materials, including Neodymium and Praseodymium. Synergies also extend to Tesla Inc., another Musk-led enterprise.

Hancock chief executive Garry Korte said the relationship between the two businesses could eventually extend beyond a shareholding. "We also see the possibility of mutually beneficial arrangements between SpaceX and Hancock Prospecting's significant critical minerals investments, as demand grows for the materials and infrastructure needed to support advanced technology," Korte said. He revealed Rinehart had held several meetings with Musk, describing SpaceX's allocation of shares to Hancock as a significant endorsement.

SpaceX shares were up 8.99% at $209.80 during premarket trading on Tuesday, trading at a new 52-week high. The stock's performance reflects strong investor interest in the company's future prospects.

Space Exploration Technologies Corp.'s market capitalization crossed above $3 trillion in after-hours trading on Monday, surpassing the valuations of Microsoft Corp. and Amazon.com Inc. This surge has increased CEO Elon Musk's net worth by approximately $165 billion, bringing his total fortune to over $1.3 trillion. The rally follows the company's recent initial public offering (IPO), which raised $85.9 billion via an overallotment option, and has solidified Musk's status as a centi-trillionaire.

Market Valuation and Comparisons

SpaceX's valuation now exceeds the market capitalizations of major technology giants. Microsoft reported a market cap of $2.97 trillion with revenue of $318 billion and net income of $125 billion. Amazon reported a market cap of $2.65 trillion with revenue of $743 billion and net income of $91 billion. In contrast, SpaceX reported revenue of $19 billion and a net loss of $9 billion, including a loss of approximately $4.3 billion in the first quarter of 2026.

Elon Musk's Wealth and Stake

The increase in SpaceX's stock price has significantly boosted Musk's wealth. His net worth now exceeds the market capitalization of all but 12 public companies globally. The combined market capitalization of SpaceX and Tesla Inc. has also surpassed that of Apple Inc. Musk's 38% stake in SpaceX remains a primary driver of his wealth accumulation.

Sector Impact and Commentary

The stock's performance has drawn mixed reactions. While investors like Charlie Bilello highlighted the historical nature of the valuation, economist Robert Reich criticized the IPO as the "universe's largest Ponzi scheme." SpaceX shares were up 3.49% to $199.21 during the after-hours trading session.