Apple became the world's first company to reach a $3 trillion stock-market valuation in 2022.
Apple briefly crossed the milestone during trading on January 3, 2022, when its share price pushed the value of all outstanding shares above $3 trillion. Market capitalization is calculated by multiplying a company's share price by its shares outstanding, so the figure can change continuously during a trading session.
Apple's rise was supported by the global popularity of the iPhone, along with the Mac, iPad, Apple Watch, services, and a large ecosystem of software and accessories. The company had previously become the first to reach $1 trillion in 2018 and $2 trillion in 2020.
The milestone describes market capitalization, not cash held by Apple or annual revenue. It also refers to an intraday valuation, so it should not be confused with a permanent year-end ranking.