To those thinking about buying SpaceX IPO stocks, think twice. Elon Musk posted that Tesla's IPO valuation was just 0.1% of its current market value. When Tesla (Tesla, TSLA) went public, its valuation was around $2 billion. Today, its market value is about $1.56 trillion. SpaceX's IPO valuation is estimated to be between $1.75 trillion and $2 trillion, even surpassing Tesla's market value. The events of April 14, 2021, still feel vivid to this day.