Apple became the first company to reach a $3 trillion market capitalization in January 2022.
The milestone was reached briefly during intraday trading on January 3, 2022, when Apple's share price rose enough to place its total equity value above $3 trillion. The company did not necessarily remain above that level for the entire session, because market capitalization changes with every movement in the share price.
Apple's rise to that valuation reflected the scale of the iPhone business, growing services revenue, and investor confidence in its hardware ecosystem. Products such as the Mac, iPad, Apple Watch, and AirPods also contributed to the company's broad consumer presence.
A market cap is not the same as annual sales or cash reserves. It represents what public investors collectively value the company's outstanding shares at, and it can rise or fall without an equivalent immediate change in revenue.