Factbox: From Saudi Aramco to Alibaba: World's biggest IPOs
20/05/2026 21:58
Updates with SpaceX unveils filing for blockbuster US IPO May 20 (Reuters) - Elon Musk's SpaceX has taken a key step toward going public with its IPO filing on Wednesday, in what could be the largest stock offering ever. If SpaceX raises $75 billion, it would eclipse the world's largest IPO to date, which was oil major Saudi Aramco's listing in 2019. Analysts expect the potential landmark listing to reinvigorate the IPO market and push more high-profile private startups such as ChatGPT-maker OpenAI and rival Anthropic to the public markets, ending a years-long downturn. Here is an overview of the biggest IPOs globally, ranked by deal size:
| Company | Offer date | Sector | Deal size |
|---|---|---|---|
| Saudi Aramco 2223.SE | 12/05/19 | Energy | $25.6 billion |
| Alibaba 9988.HK | 09/18/14 | Technology | $21.8 billion |
| SoftBank Corp 9984.T | 12/10/18 | Communication Services | $21.3 billion |
| NTT Mobile 9432.T | 10/22/98 | Communication Services | $18.1 billion |
| Visa V.N | 03/18/08 | Financials | $17.9 billion |
| AIA 1299.HK | 10/21/10 | Financials | $17.8 billion |
| ENEL SpA ENEI.MI | 11/01/99 | Utilities | $16.5 billion |
| Meta META.O | 05/17/12 | Technology | $16 billion |
| General Motors GM.N | 11/17/10 | Consumer Discretionary | $15.8 billion |
| ICBC - H 1398.HK | 10/20/06 | Financials | $13.96 billion |
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