Saudi Aramco became the world's most valuable public company after its 2019 stock-market debut.
Saudi Aramco's shares began trading on the Tadawul in December 2019. The opening valuation of approximately $1.88 trillion placed the company above Apple at that moment, making it the world's most valuable listed company by market capitalization.
The company is one of the world's largest integrated oil and gas businesses. Its value reflects Saudi Arabia's immense petroleum reserves, production capacity, refining operations, and importance to global energy markets.
This record is time-specific because market-cap rankings change whenever share prices change. Saudi Aramco later traded below its debut valuation, while Apple and other technology companies subsequently reclaimed the top position.