SpaceX began trading on Friday after a record-breaking US$75 billion IPO, with its shares surging nearly 20% to value the company at about US$2.1 trillion. The listing pushed Elon Musk’s net worth above US$1 trillion when combined with his Tesla holdings, making him the world’s first trillionaire. The debut is also seen as a boost for the AI sector and could encourage companies like Anthropic and OpenAI to pursue public listings.