Apple became the first company to reach a US$1 trillion market capitalization using an American stock exchange listing in August 2018.
Apple crossed the milestone on August 2, 2018, when its shares rose after the company reported strong quarterly results. The valuation was calculated from the share price and the number of outstanding shares, with Apple’s stock traded on the Nasdaq exchange under the symbol AAPL.
Apple’s achievement followed years of growth in the iPhone business and expansion into services, accessories, and other devices. It was widely treated as a landmark for US-listed companies and helped establish trillion-dollar market capitalization as a familiar public benchmark.
The wording matters because PetroChina had briefly reached a trillion-dollar valuation in 2007, and other companies later crossed the same threshold. Apple was the first US company to achieve the milestone and sustain broad attention around it.