History was made on Wall Street Friday morning. SpaceX (Nasdaq: SPCX) began trading on the Nasdaq at $150 per share — 11% above its $135 IPO price — in the largest public market debut in history. Shares immediately surged to an intraday high of $168.40, pushing the company’s market capitalization above $2 trillion and lifting Elon Musk’s net worth to an estimated $1.3 trillion or more, making him the first person in human history to achieve trillionaire status on paper.