Which company had the largest IPO in history when it went public in 2019?

Saudi Aramco had the largest initial public offering in history when it went public in 2019.

Saudi Aramco sold shares on the Saudi Stock Exchange, or Tadawul, in December 2019. The offering raised about $25.6 billion, and an additional over-allotment option later increased the total to about $29.4 billion. That made it the largest IPO ever recorded at the time.

Saudi Aramco is the national oil company of Saudi Arabia and one of the world’s largest integrated energy companies. Its operations include oil and gas exploration, production, refining, chemicals, and distribution.

The IPO is sometimes confused with the company’s total market value. The amount raised was the money collected from selling a portion of shares, while market capitalization represents the value of all publicly traded equity at the prevailing share price.