Apple Mac OS Market Share breaks through 8 percent mark - now stands at 8.23 percent

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By: switchtoamac at: 11:48 PM on October 1, 2008 | Comments (2)
According to data collected and metrics tracked by market research firm Net Applications, Apple's Mac OS market share has risen to 8.23 during September 2008.  The rise represents a year-over-year gain of 24.13 percent based on September 2007 when Mac OS market share was measured to be 6.63 percent.
Key Percent Increases
  • Up 24.13 percent since September 2007
  • Up 8.72 percent since January 2008
  • Up 25.08 percent since October 2007 (month during which Mac OS X 10.5 Leopard was released)
The following is a view of Apple's Mac OS market share month by month for calender year 2008.  The table tracks Mac OS market share for 2008 and 2007 and highlights the year-over-year (Y-O-Y) increase.  In this scenario, year over year measures the percent change in Mac market share (based on Net Applications data) versus the same month in the 2007.

Year-Over-Year growth slowing

September 2008 marks the third straight monthly decline on a year-over-year basis.  Although the Mac operating system continues an upward growth path, a slowdown in the growth can be inferred from the yearly comparisons for the prior three months.  With a slowing U.S. economy heading into the tail end of the calendar year, there is a high probability that this trend will continue as consumers clamp down on spending.

About Market Share
You can learn about Net Applications here.

2 Reader Comments

Is a Y-O-Y percent increase in a percent market share a meaningful statistic?

Wouldn't showing points of share increase be more meaningful?

Yes, a Y-O-Y (year over year) comparison is a valid indicator that provides insight into the trend. This is what many analysts and investors use for the comparison. Here's an example:

Sample 1 grows from 5 to 10. This represents a 100% increase.
Sample 2 grows from 100 to 150. Although the absolute number increase is larger than in sample 1 (50 versus 5) the actual change on a percent basis is only 50%.

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