Both IDC and Gartner have reported their PC market share estimates for Q2 2010. As usual, I average these figures to present a clearer picture of what's going on in the market.

PC makers sold 82.2 million machines in Q2 2010, 18.15 million in the US. These are gains of about 22 percent worldwide, and about 14 percent in the US (compared to the same quarter one year ago).

The big winner this quarter, believe it or not, is Apple. After years of tiny gains, Apple has cracked the 4 percent worldwide market share ceiling. In fact, they've done so in a big way: Apple's Mac now controls 4.22 percent of the worldwide PC market, and 9 percent of the US market. That worldwide figure is more accurate (as the number comes from Apple), and a huge jump over previous results: Last quarter, the figure was just 3.6 percent. This is such a big gain, in fact, that I had to recheck it a few times. But it's right, and Apple has never made that kind of gain in a single quarter, at least since I've been watching. (In fact, it lost share between Q3 2009 and Q1 2010.) And this is the first time in over 15 years that the Mac has had more than 4 percent market share.


The top five PC makers break out as follows:

Worldwide PC sales, Q2 2010 = 82.2 million units

1. HP 14.7 million units, trending up

2. Dell 10.7 million units, trending flat

3. Acer 10.5 million units, trending flat

4. Lenovo 8.3 million units, trending up (dramatically)

5. Toshiba/ASUS (tied) 4.25 million units, trending up (ASUS up dramatically)


US market share falls like so:

US PC sales, Q2 2010 = 18.15 million units

1. HP 4.65 million units, trending up

2. Dell 4.3 million units, trending up

3. Acer 2 million units, trending flat

4. Apple 1.65 million units, trending up

5. Toshiba 1.6 million units, trending up