Apple was the first company to close above a $1 trillion market capitalization in 2018.
Apple’s shares finished above the trillion-dollar valuation threshold on August 2, 2018. This distinction concerns the closing value of the stock market session, rather than a price that may have been touched temporarily during trading.
The milestone followed Apple’s expansion from a personal-computer company into a global consumer-technology ecosystem. The iPhone generated enormous sales, while the App Store, cloud services, payments, and subscriptions helped diversify the company’s earnings.
Amazon became the second company to cross $1 trillion in September 2018. Market capitalization is a moving measure: a company can gain or lose billions in implied value in a single trading session without issuing or buying that amount of cash.