Apple Becomes Biggest Stock Ever

Barely a year after supplanting Exxon Mobil as the largest stock in the current marketplace, Apple entered the record books Monday, becoming the most valuable stock to have ever traded.

Apple closed Monday at another historic high of $665.15, ending the day with a record market cap of $623.5 billion.

With Monday’s gain, Apple eclipsed Microsoft’s peak market cap of $618.9 billion, a level that Microsoft hit over 12 1/2 years ago, on Dec. 30, 1999. That happened at the height of the dot-com boom and just three months before the Nasdaq Composite peaked at its all-time high of 5,132.52.

Nothing seems to be slowing down Apple’s stock these days. Shares have been on the rise over the past three months in high anticipation of new iPhone and iPad models that have been predicted to hit stores during the second half of this year. Even a disappointing earnings report late last month did little to spook investors as they remained focused on the widely expected, but not yet formally announced, iPhone launch next month.

Despite paying a dividend last week for the first time since 1995, Apple’s stock quietly closed at historic highs and saw its market cap close above $600 billion for the first time on Friday.

In fact, Apple has seen its market cap double from $300 billion to $600 billion in a mere 19 months. Now, Apple’s colossal market cap is roughly equivalent to the combined market caps of tech titans IBM, Google, Intel , and Hewlett-Packard .

As Apple’s stock continues to push higher, the gap between its market cap and that of the second largest company, Exxon Mobil, continues to widen.

Apple’s stock is now more than 50 percent bigger than Exxon Mobil, with over $200 billion now separating the two companies’ market caps. That’s a large gap, considering only nine stocks in the S&P 500 have a market cap of $200 billion or more.

The difference between Apple and Exxon Mobil’s market caps is bigger than the individual market caps of 98 percent of the S&P 500 companies.