Which company became the first to reach a $1 trillion market capitalization in the United States after its 2018 stock rally?

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Apple became the first company to reach a $1 trillion market capitalization in the United States after its 2018 stock rally.

The milestone was reached on August 2, 2018, when Apple shares traded high enough for the company’s outstanding shares to be valued at approximately $1 trillion. Strong iPhone sales, a loyal customer base, and growing services revenue supported investor confidence.

Apple’s result was especially notable because the company had once been close to collapse in the late 1990s before returning to profitability under Steve Jobs. Products such as the iPod, iPhone, and iPad transformed its scale and changed its revenue mix.

This question refers specifically to the U.S. market. PetroChina had briefly reached a similar headline valuation earlier, while Amazon became the second U.S. company to pass the $1 trillion mark one month later.

Source: Wikipedia · fact-checked Sept. 2026

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