TradingKey - Following SpaceX's ( SPCX) initial public offering, the value of the SpaceX stake held by Google's parent company, Alphabet ( GOOGL) has garnered market attention. Based on SpaceX's post-listing market capitalization and Alphabet's estimated stake of approximately 5%, this investment is currently valued at around $94 billion, making it one of Alphabet's most significant investments.
Alphabet and Fidelity jointly invested approximately $1 billion in SpaceX as early as 2015, with Google contributing about $900 million when SpaceX was valued at just around $12 billion. Since then, SpaceX has expanded rapidly, driven by rocket launches, the Starlink satellite internet network, and the Starship project, boosting the value of Google's initial investment by about 100 times.
Furthermore, SpaceX's listing has generated massive paper gains for Alphabet. In Alphabet's latest quarterly results, equity and other investments generated approximately $98 billion in unrealized gains, a significant portion of which is widely believed by the market to be related to the revaluation of SpaceX's shares post-listing. However, because these gains primarily stem from share price appreciation rather than cash inflows, they will remain subject to fluctuations in SPCX's stock price.
For Alphabet, the SpaceX stake not only enhances its asset value but also provides a strategic entry point into aerospace, satellite communications, and space computing. The two companies had previously expanded their cloud computing cooperation, with SpaceX planning to procure large-scale computing power from Google, indicating that the two entities are gradually shifting from a pure equity investment to business collaboration.

Google Stock Price Daily Chart, Source: TradingView
In terms of the impact on stock price, this holding helps raise market awareness of Alphabet's hidden asset value, though its ongoing contribution to core earnings is limited. If SPCX's stock price continues to decline, Alphabet's investment gains in future quarters could also pull back significantly; however, if Starlink's revenue and the progress of the Starship project exceed expectations, the SpaceX stake may continue to provide support for Alphabet's valuation.