Google's $122 Billion SpaceX Stake Emerges as IPO Looms, Revealing Hidden Tech Giant Bet

A regulatory filing has revealed the staggering potential value of Alphabet Inc.'s long-held investment in SpaceX, a stake that could be worth approximately $122 billion if the rocket company proceeds with a public listing at its rumored $2 trillion valuation. This positions the investment as one of Google's most valuable strategic bets, a figure that had previously been acknowledged but lacked precise detail. The disclosure shows Google owned about 6.11% of SpaceX at the end of 2025, a holding that, after SpaceX's merger with xAI, is estimated to have diluted to around 5%—still representing a colossal $100 billion at the same valuation.

The figures offer a rare, clear window into the ownership structure of one of the world's most valuable private companies. Only Google and Elon Musk, who controls roughly 40% of SpaceX, were required to disclose holdings above the 5% threshold. This places Google as a central, silent partner in the aerospace venture, its financial interest now quantified ahead of a pivotal market event. The disclosure comes as SpaceX is reportedly targeting a potential June IPO, which could raise as much as $75 billion, positioning it to be one of the largest listings in history.

The impending IPO transforms Google's passive stake into a liquid asset of unprecedented scale, with significant implications for Alphabet's balance sheet and the broader tech investment landscape. At such a valuation, even a diluted 5% holding translates into a windfall that could reshape corporate strategy and capital allocation. The move places immense pressure and scrutiny on the IPO process, as market conditions and investor appetite will now be tested against these monumental figures, determining the final worth of one of Silicon Valley's most consequential hidden investments.