Apple’s stock made up more than $400 billion over the last nine months and ended today a $1 trillion company.

It’s a remarkable recovery, considering Apple closed the day on Jan 3. at $142.19 a share. Today, Apple’s shares rosed 3.2 percent to close at $223.59 for a $1.01 trillion market capitalization.

Apple stock is trading up by 4% today, following yesterday’s Apple earnings call. This, at least as far as we’re aware, drives Apple over the $1 trillion value once more.

That sound you hear are champagne corks popping in Cupertino!

Yesterday, numerous news outlets (including ourselves, based on data from Yahoo Finance) reported that Apple had reclaimed its $1 trillion crown.

However, a filing made late Wednesday reveals that Apple has not actually hit that milestone just yet. A company’s market cap is calculated by multiplying a company’s outstanding shares by the market price of one share. As a result of Apple’s continuing share buyback program, there are fewer outstanding shares available.

Apple has won back its hard-fought $1 trillion market cap, after share prices rose following yesterday’s earnings triumph.

AAPL is currently trading at $213.20, giving it a market cap of just over $1 trillion. Shares rose 6% in early morning trading. This is a particularly triumphant moment for Apple after its stock price temporarily tanked at the end of last year.

There was a lot to be enthusiastic about from yesterday’s Apple earnings, but some investors are rattled by weaker-than-expected iPhone sales.

As a result, Apple’s valuation dipped below the $1 trillion mark for the first time since the company hit that milestone earlier this year. The slide could well continue in the early part of today.

Amazon became the second member of the $1 Trillion Club this morning – then left it after stock prices dipped.

Amazon crossed the threshold at $2050.27, five weeks after Apple was first to reach $1 trillion. By early afternoon, Amazon shares were trading at $2,035.64.

Apple may have pipped Amazon to the post by being the first company to hit $1 trillion (despite some predictions to the contrary), but Amazon has nothing but good things in its future.

According to a new report from MKM Partners, by 2024 — roughly five years from now — Amazon could be valued at a whopping $2.5 trillion. Amazon Web Services alone could, meanwhile, be valued at a whopping $1 trillion, approximately the same valuation Apple holds today.

Apple becoming the world’s first trillion dollar company has put it in the crosshairs of consumer advocates, including Ralph Nader. He heavily criticized the company for a $100 billion stock buyback, instead of using the money to pay employees more, improve recycling efforts, increase R&D, or making other productive investments.

Nader is angered that businesses like Apple have spent so much of the Republican tax cuts put in place last year on stock buybacks, rather than the “productive investment and jobs” they promised. 

Guy Kawasaki made history with Apple. So you would expect he would have a lot to say today when stock prices surged high enough to make his old employer the first trillion dollar company.

For one thing, the marketing guru behind the success of the Macintosh computer wishes he hadn’t turned down an offer from founder Steve Jobs to return to Apple.

Apple’s market capitalization passed $1 trillion today. It’s hard to wrap your head around such a large number, so let’s do some comparisons.

But be warned, you might have a hard time believing how much bigger Apple is than some other companies. Or entire industries.