SpaceX went public Friday, with shares trading at just above $150 in a hotly anticipated initial public offering that values Elon Musk’s rocket and AI company at $2 trillion. Musk celebrated the market debut Friday, jointly ringing the Nasdaq opening bell from SpaceX headquarters in Texas. He has now made history as the world’s first trillionaire, and SpaceX's IPO is the biggest in history. 0:00 What can $1,000,000,000,000 buy you? 1:08 Elon Musk becomes the world's first trillionaire 2:05 Musk