Which company became the first publicly traded company to surpass US$2 trillion in market capitalization during trading?

The story behind the answer

Saudi Aramco became the first publicly traded company to surpass US$2 trillion in market capitalization during trading.

Saudi Aramco passed the US$2 trillion level shortly after its shares began trading on the Saudi Exchange in December 2019. The company’s initial public offering was one of the most closely watched listings in financial history and valued the national oil company at roughly US$1.7 trillion at its offer price.

The valuation rose as the stock gained after listing, though the company’s market value later moved with oil prices, investor sentiment, and the performance of global equity markets. Saudi Aramco remains closely associated with Saudi Arabia’s petroleum industry and is one of the world’s largest integrated energy companies.

This fact is distinct from the first company to reach US$2 trillion on a closing basis or the first company to reach US$3 trillion. The wording “during trading” refers to an intraday market value, which can differ from the value calculated at the end of the session.

Source: Wikipedia · fact-checked Oct. 2026

Add question to a list

Choose a list to keep this question in: