Apple reached the world's first $1 trillion market capitalization in 2018.
Apple crossed the threshold on August 2, 2018, when its share price rose after strong quarterly results and an optimistic outlook. The achievement made Apple the first publicly traded company to be valued at $1 trillion based on its outstanding shares and market price.
The iPhone, introduced in 2007, was central to Apple's transformation from a personal-computer maker into a broad consumer-technology company. The App Store, services such as Apple Music and iCloud, and products including the iPad, Apple Watch, and AirPods broadened the ecosystem.
Apple's $1 trillion milestone is distinct from its later $2 trillion milestone in 2020. It is also separate from the total value of the U.S. economy or the company's revenue. Market capitalization changes with stock trading and can move above or below a round-number threshold during a single session.