Apple was the first U.S. company to close a trading day with a market capitalization of $1 trillion.
Apple reached the milestone on August 2, 2018, when its shares finished the session at a price that valued the company at approximately $1 trillion. The achievement followed a strong quarterly earnings report and continued investor confidence in the iPhone, services, and other products.
Apple’s milestone is often confused with PetroChina’s earlier intraday crossing of the same threshold in 2007. It is also distinct from later companies that reached $1 trillion during trading but did not become the first U.S. company to finish a session at that level.
The achievement reflected more than iPhone sales alone. Apple had increasingly built recurring revenue through services such as the App Store, Apple Music, and iCloud. Its large installed customer base, global supply chain, and brand strength helped make it one of the most valuable public companies in history.