Focusing on the US Market
If you look at Apple’s business model, it quickly becomes apparent that its retail operations are a key part of its route to market. Wherever Apple stores open, Apple’s share of the local PC market rises. About 50% of Mac purchases in the stores are by people converting from Windows. In effect Apple’s stores are show rooms as well as retail outlets. The only country where Apple has a significant number of stores is in the US – and there is no evidence that it has saturated the US with stores. The USA is also the trend-setting market in computer technology. It gives the lead to other markets. The US market is about 29% of the global market, but that percentage is falling as the number of PC owners rises in fast developing countries like India and China.
The latest figures (4Q07) from Gartner suggest that Apple has 6.1% of the US market, whereas IDC thinks it’s 5.7% – so lets assume it’s 5.9% – and that factors up (by 25%) to 7.4%. Thus:
Apple’s Share of the US Home PC Market = 7.4%………….(III)
Market Share By Revenue
So far we have focused on unit sales. But, the average revenue that Apple gets per unit is roughly double what other vendors get. This is because Apple sells at a premium and because it does not focus on low-end models. This means that we can almost double the above percentage to show market size by revenue, to give us 14.7%.
I’m reasonably sure that this figure is accurate, because I’m not alone in suggesting a figure in that region. According to Charles Wolf, of the Wolf Bytes newsletter, Apple’s share of home PC revenue in the US is 15.8% which he maintains is almost double its share of the number of units sold. If we average his figure with mine we have:
Apple’s Share of the US Home PC Market By Revenue = 15.05%…..(IV)
It’s your choice as to how important you think this revenue figure is. I regard it as less important than the number of units. However the number of units does not tell you how much the product is being used, only how many products have been sold.
Market Share By Usage
A web site can monitor its visitors and know who is using which OS. It can also gather statistics from multiple web sites to get a more accurate picture. This is what Net Applications does, using 40,000. It’s current figures suggest that 7.57% of Internet users are using Macs. I find that an interesting figure given that Net Applications is actually monitoring sites right across the world – not just US sites.
If the Mac has just 3.2% of the global PC market currently, but 7.57% usage share then one or more of the following statements must be true:
- Mac users replace their computers a lot less frequently (i.e. greater obsolescence in Windows PCs leads to more PC sales).
- A significant percentage of PCs don’t access the Internet.
- Many PCs that do access the Internet access it less frequently than Macs do.
The third of these statements is probably the main cause of the high usage figure. Net Applications also reports that the Safari market share (by usage) is 5.8% and Safari usage usually indicates a Mac (or an iPhone).
Apple’s Share of the Global PC Market By Usage = 7.57%……(V)

























Very interesting take on this. I have wondered as well about regional USA market shares such as the New England and Los Angelos areas where film and graphic design may be more prevalent as well as high end colleges teaching these subjects?
“Right now it’s obvious that Apple is trampling all over Microsoft and it’s the PC manufacturers that are taking the hit.”
I like it! Tramp on Apple!!!
I have no solid data on regional figures, but its clear that Apple puts many of its stores in University towns and it has always taken care to serve the film industry just so that Apples keep appearing in movies.
Thanks for the feedback.
Robin
Excellent analysis. I think you’re correct that Apple’s market share will accelerate. People are just beginning to grok Mac.
“Apple actually has a 100% market share (of the Mac market) and the Home Mac market is outgrowing the Home Windows PC market by a factor of about 3 or so, indicating that consumers have concluded that it is a far superior product. ”
I just wanted to address this point. Is it really a fair comparison to try and compare a market in a growth stage with a market that’s in a mature stage?
To say consumers have deemed the mac to be the “far superior product” based on the growth rate is sensationalism at its finest.
Those PC users who do not switch because they believe the PC to provide superior utility do not affect the growth rate because they are already included in that market share. You can’t deny the growth, but you can’t claim the Mac “far superior” based on that and actually believe that is what consumers believe. Some yes, a majority, not a chance.
Other factors not considered is the growing number of PC users who do not purchase a PC from a store and build their own machines. I will likely never buy another “brand name” PC again, the last time i did was in 2002.
Later figures suggest that Mac market is outgrowing the PC market by a much higher factor (10 to 15). More than 50 percent of Mac buyers are switching away from the PC – even though the Mac is more expensive (except at the top end of the range.)
So the disparity is growing and you seem to think that these consumers don’t believe that the Mac is a far superior product. What is your alternative theory?
a) They think the Mac’s inferior but they’re happy to pay more and buy it anyway.
b) They think it’s fairly equal, but they’re happy to pay more and buy Macs anyway.
c) They feel sorry for Steve Jobs and are behaving charitably.
d) All these buyers are mentally incompetent and need help.
“Mac users replace their computers a lot less frequently (i.e. greater obsolescence in Windows PCs leads to more PC sales)”
Alternatively, PCs are cheaper so people are more willing to discard old ones. If Macs cost more, naturally people will replace them less often.
Perhaps the truth lies somewhere in between.
A further factor is the virus problem. PC performance degrades over time but does so quite quickly if virus infected. Owners that don’t understand the problem often simply buy a new PC.
“Owners that don’t understand the [virus] problem often simply buy a new PC.”
If they take their PC to a shop to have it virus cleaned, the cost of labour soon makes a new PC appealing.