Alphabet’s initial $900 million investment in SpaceX has grown to $94 billion. This represents a more than 100-fold increase since the 2015 funding round.

Quarterly filings following SpaceX’s June IPO revealed the valuation. Alphabet now stands as the largest single institutional shareholder in the aerospace firm.

The company held 551.2 million shares at the end of the second quarter. These paper gains highlight the value of Alphabet’s venture capital portfolio.