Alphabet's $900M investment in SpaceX in 2015 is now worth an estimated $100B to $122B as SpaceX targets a $1.5-1.8 trillion IPO in June 2026.

SpaceX filed its amended S-1/A with the Securities and Exchange Commission, setting a fixed offer price of $135 per share.

With SpaceX seeking a valuation of nearly $1.8 trillion in IPO, early bets are poised to generate some of the biggest paper gains in venture capital history.