Apple was the first publicly traded firm to surpass a $1 trillion market capitalization in intraday trading in August 2018.
Apple crossed the threshold during trading on August 2, 2018. Because market capitalization changes continuously with the share price, the valuation moved above $1 trillion before the session ended. The company also finished that day above the milestone, making the event especially prominent in financial coverage.
Apple’s market value had grown alongside the success of the iPhone, which generated substantial hardware sales and helped build a large ecosystem of applications and services. The company’s global brand and high-margin services were also important parts of investor expectations.
Intraday records and closing records should not be treated as interchangeable. A company may briefly cross a valuation threshold and later fall below it before the close. This distinction explains why financial histories sometimes list separate dates for reaching and closing above a market-cap milestone.