Amazon’s market capitalization first exceeded $1 trillion in 2018 after its stock price passed $2,000 per share.
Amazon crossed the valuation threshold on September 4, 2018, when its shares traded above $2,000. The share-price figure alone did not determine the milestone: market capitalization also depends on the number of shares outstanding.
Amazon’s rise was powered by several connected businesses. Its retail marketplace expanded selection and fulfillment, while Amazon Web Services supplied cloud infrastructure to companies and organizations around the world. Advertising and subscription services later added further sources of revenue.
The price-per-share detail can cause confusion because companies can split their shares, changing the nominal share price without changing the underlying market capitalization. The $1 trillion milestone concerned Amazon’s total equity value, not simply the price of one share.