FORTUNE -- Two years ago Apple (AAPL) made headlines when its market capitalization (share price times number of shares outstanding) overtook Exxon Mobil's (XOM) for the first time.
In January, with Apple's share price in a tailspin, the big news everywhere from the Wall Street Journal to the Huffington Post was that Exxon was once again the market cap king -- the world's most valuable company.
When Apple retook the lead the next day, almost no one noticed. Perhaps that news didn't fit the Apple-is-doomed narrative.
Now, having lost and regained the lead several times since, Apple is once again pulling away from the oil giant. By midday Monday, with Apple at $434.4 billion and Exxon at $404.8, the gap between the two companies' valuations had swelled to roughly one and a quarter Dells (DELL).
According to Google Finance, Regis Corp. has a market cap twice as big as Apple's
FORTUNE -- I've long since given up on Google (GOOG) as fair arbiter of business news value (see Has Google Finance's news feed got it in for Apple?). I'd assumed, however, that it could be trusted to deliver accurate market data.
But reader Hank Vaccaro points out that according to Google Finance, Apple's (AAPL) $450 billion market cap was MORE
Philip Elmer-DeWitt - Feb 12, 2013 7:03 AM ET
In 32 years, the value of the company Steve Jobs founded increased 6.2 thousandfold
FORTUNE -- Since June, ISI's Brian Marshall has been sending his clients a daily Tech Tidbit that begins "Did you know?"
On Friday, to commemorate the one-year anniversary of Steve Jobs' death, he offered this summary of Apple's (AAPL) history as a public company:
Steve Jobs co-founded Apple in 1976 and the company went public in 1980 raising about MORE
Philip Elmer-DeWitt - Oct 5, 2012 11:25 AM ET
Its market cap today is $577 billion. Where do the next $400-plus billion come from?
In a note to clients issued early Tuesday, Piper Jaffray's Gene Munster raised his Q2 iPhone estimate (to 33 million), set a new 12-month price target ($910 per share) and -- most provocatively -- laid out a roadmap for Apple's (AAPL) market capitalization to go from $576.79 billion as of Monday's close to $1 trillion by MORE
Philip Elmer-DeWitt - Apr 3, 2012 7:06 AM ET
Another week, another milestone: AAPL closes at $552, up $6.83 (1.25%) for the day
A few facts about Apple's (AAPL) record close Monday:
The day Steve Jobs died, the stock closed at $378.25
Since Oct. 5, Apple's shares have gained $173.75
Apple's market cap has grown by $162 billion and now stands at $514.67 billion
All 30 of Apple's highest closes have been reached this year
Monday's close was $98.99 higher than close No. 30, set on MORE
Investors search for reasons the company's market cap grew by $15 billion in one day
The $16.49 Apple (AAPL) rose Thursday was only its sixth largest one-day dollar gain, according to AAPLInvestors, and in percentage terms, 3.46% doesn't even make the top 10.
But when the world's most valuable company rallies a few points, its market capitalization gets a whole lot bigger. According to the Bespoke Investment Group, Apple's one-day gain Thursday -- MORE
Philip Elmer-DeWitt - Feb 10, 2012 6:05 AM ET
Also, the combined market caps of Google and Microsoft. Steve Jobs would be pleased.
Apple (AAPL) closed Thursday at a record high $493.17, up a whopping $16.49 (3.46%) for the day. That pushed its market capitalization (share price times shares outstanding) to nearly $460 billion -- more than any other company in the world and, as Apple Insider's Neil Hughes noted, greater than the value of Microsoft (MSFT) and Google (GOOG) MORE
Philip Elmer-DeWitt - Feb 9, 2012 5:05 PM ET
The world's most valuable company is now worth $425 billion, $24 billion ahead of Exxon
Apple (AAPL) capped a post-earnings surge by closing Tuesday at $456.48, a new all-time record high.
In intraday trading it reached as high as $458.24, also a record.
Measured by market capitalization (price per share times number of shares outstanding), Apple is now worth more than $425 billion, making it the world's most valuable company by far.
No. 2 MORE
Philip Elmer-DeWitt - Jan 31, 2012 4:19 PM ET
Exxon Mobil finished 2011 where it started: As the world's most valuable company
It was nip and tuck for more than three months, from that day in early August, when Apple (AAPL) first overtook Exxon Mobil (XOM), to mid November, when Exxon finally pulled away.
At one point in late September, Apple's market cap (share price times number of outstanding shares) was nearly $36 billion more than Exxon's.
But though Apple's shares ended the MORE
Philip Elmer-DeWitt - Jan 2, 2012 11:58 AM ET
The closing bell rang Wednesday with Apple's market cap, for the first time, at No. 1
Apple (AAPL), for now at least, is the world's most valued company by market capitalization (determined by multiplying a company's stock price times number of shares outstanding). Here's how it happened:
It caught up to Google (GOOG) in mid-2009
It overtook Walmart (WMT) in March 2010
It passed Microsoft (MSFT) in May 2010
It caught up to Exxon Mobile MORE