SpaceX's stock market debut a test of investor appetite ahead of mega AI listings

Shares of Elon Musk's SpaceX cleared for lift-off on the Nasdaq stock exchange in a matter of hours from now, after the largest initial public offering in history. The company sold more than 555 million shares at US$135 apiece, raising about US$75 billion. This values SpaceX at US$1.77 trillion, making it the seventh most valuable US company — just ahead of Tesla, also one of Musk's companies. SpaceX's debut is regarded as a litmus test for investor appetite for AI exposure, ahead of expected mega listings from OpenAI and Anthropic. Nick Harper reports from Washington DC.