The online retailer's shares then hit the $2050.2677 level to give its stock a value of $1 trillion.
Amazon retreated slightly after hitting the milestone, and near 1545, it was up 1.3 percent to $2,038.71.
It's official: Amazon is the second American company to achieve a valuation of more than $1 trillion (R15,2 trillion).
Apple took nearly 38 years as a public company to achieve the trillion dollar milestone, while Amazon got there in 21 years.
NAFTA talks turn tense on day of deadline
If Canada is not included in that final text, it would be legally very hard - if not impossible - to include the country later. Trump wanted to start the required 90-day layover before Congress can ratify the agreement.
Canada trade talks going down to wire
Mr Trump has also threatened to withdraw the USA from the World Trade Organization ( WTO ), saying it treats his country unfairly. Canada won't give in to USA demands to kill the Chapter 19 panels, a Canadian official familiar with talks said Friday.
Trump won't say if Sessions' job is safe past November
Last week, in an interview with Fox, Trump lashed out at Sessions, saying he failed to take control of the Department of Justice. He charged that Mr Mueller's probe was "highly conflicted" and that "real corruption goes untouched".
But of that massive revenue, retail is slowly beginning to take a backseat to other, higher-margin services. Amazon Web Services provides cloud computing services to companies and government, and its advertising division makes billions by selling ads to companies that want their products to show up when shoppers search on the site.
Amazon - founded as an online book-retailer in Chief Executive Jeff Bezos' garage in 1994 - started trading on May 15 1997 at $1.50 on a split-adjusted basis.
'The difference between the two is that Amazon has room to grow within its two main businesses. That puts the company's market capitalization-the number of its outstanding shares multiplied by share price-at $1 trillion.
"This year marks the 20th anniversary of our first shareholder letter, and our core values and approach remain unchanged", Bezos said in his 2017 letter to shareholders in March.
"We continue to aspire to be Earth's most customer-centric company, and we recognize this to be no small or easy challenge".