Saudi Aramco surpassed a US$1 trillion market capitalization on its first trading day in 2019.
Saudi Aramco began trading on the Saudi Stock Exchange on December 11, 2019. Its shares rose by the daily limit, giving the company a market value of roughly US$1.88 trillion at the close. That made the state-controlled oil producer one of the most valuable listed companies in the world immediately after its debut.
The IPO had been priced at 32 Saudi riyals per share. The sale represented only a small portion of the company, because the Saudi government continued to own most of the shares. The listing formed part of Saudi Arabia's broader economic-diversification strategy associated with Vision 2030.
This milestone differs from being the first company ever to exceed US$1 trillion. Apple achieved that earlier, in 2018. Saudi Aramco's distinction was crossing the level immediately after its own public-market debut.