Which are world's biggest IPOs as Anthropic's $2-tn IPO nears?

Anthropic's anticipated US IPO, which could value the Claude maker at about $2 trillion, is expected to be one of the largest debuts ever attempted. SpaceX currently holds the record for the world's largest IPO after raising $75 billion in its 2026 offering, surpassing Saudi Aramco's $25.6-billion debut. Alibaba ($21.8 billion) and SoftBank ($21.3 billion) round out the top four.