This was the crowning event in a week in which Apple reported its quarterly results on Tuesday in which revenue was up 17 percent year-on-year to $53.3 billion.
Trip Miller, managing partner at Gullane Capital LLC in Memphis, said Apple "should trade much higher". It's since fallen slightly, but not enough to knock Apple back down into the billions.
After Steve Jobs returned to Apple as the CEO in 1997, he axed most of the product lines to focus on PCs.
Of course that's just what happened.
He quickly set about scrapping various projects and introduced Think Different - a campaign created to promote Apple and its products, and revive employee morale. The story of Apple is really the story of modern capitalism doing what it does best: turning imagination into reality.
We've identified a little-known company that Apple has handpicked to produce a crucial part of Apple's mobile devices. As a company gets bigger, its growth rate tends to slow down.
Other companies have come close to the mark, but no public U.S. company has hit a $1 trillion valuation.
Cook emphasized the company's innovation and principles make Apple one of the world's most valuable businesses. It was the time when the co-founder of the company, who was literally shown the door by the board mere few years before, made a decision to come back to turned the table by showing an exponential degree of commitment and confidence.
The first company to hit $10 million in market capitalization had a 20 year charter to start, and was championed by Alexander Hamilton.
Cook didn't invent that approach, but his stewardship of the company has been admirable, as borne out by the increase of over 285% in Apple's share price since he took over. Anxious that companies aren't spending enough on R&D? By past year, its sales had grown more than 11-fold to $229 billion - the fourth highest in the S&P 500 .SPX - and net income had mushroomed at twice that rate to $48.4 billion, making it the most profitable publicly listed USA company.
At the time of writing, Apple has already retreated from the $1 trillion valuations, and the fate of the last company to reach $1 trillion may be an object lesson to investors.
Like that's automatically a bad thing.
The company was co-founded by the late Steve Jobs, a product innovator who helped prevent the company's collapse in the late 1990s. At our closing share price of $207.39, the stock market now values Apple at more than $1 trillion.