Top 10 Biggest IPOs Ever SpaceX raised $75B in its June IPO on Nasdaq, the largest in history and almost three times the previous record. Saudi Aramco held that record for six and a half years with $25.6B in 2019. SpaceX alone accounts for 30% of the $252.6B raised by the 10 biggest IPOs ever, more than Aramco, Alibaba and SoftBank combined. The rest of the top 10 is dominated by Asia: three Chinese giants (Alibaba, Agricultural Bank of China and ICBC) and two from Japan (SoftBank Corp and NTT DoCoMo). The record may not last long, though: Anthropic filed for its IPO on October 26 and is reportedly aiming to raise up to $100B.