Its stock surged during morning trading on the Nasdaq, reaching the milestone when its share price hit $2,050.50 per share.
Amazon crossed the $2,000 threshold for the first time on August 30 after doubling its price in just 10 months.
Amazon has impressed investors by successfully diversifying its business into virtually every corner of the retail industry, altering how consumers buy products and putting major pressure on many brick-and-mortar stores. For example, you can expect to see Amazon commercials during NFL Thursday Night Football this season, as well as ads on video game streaming service Twitch, which the company acquired in 2014. The giant online retailer and Web services company has been consistently profitable since 2015.
Amazon must also guard against the kind of arrogance that can undo companies that come to dominate markets, according to the analyst.
Amazon has revolutionized how people shop online and is the world's dominant internet retailer.
Just a few weeks after Apple became the world's $1 trillion company, Amazon became the second to reach the historic marker: On Tuesday, as Amazon stock inched higher, the company's market capitalization briefly rose over $1 trillion. It has held above that level since October 27, 2017.
The Seattle-based company's stock has grown over 70 percent year-to-date, and has gained over 3,000 percent in the past decade. In comparison, Apple has risen about 35.0percent in 2018.
Even more telling is Amazon's size when compared to the entire national stock markets of other countries.