Gartner, IDC fail to agree on preliminary Mac unit shipment numbers

Apple Store“Domestic Mac shipments for the second quarter of 2009 rose to 1.422 million, a 2.5 percent year-over-year increase,” John Paczkowski reports for AllThingsD. “Or, they fell to 1.2 million, a decline of 12.4 percent.”

“All depends on who you believe, Gartner or IDC. According to Gartner, Apple (AAPL) has an 8.7 percent share of the U.S. market. According to IDC, that share is 7.6 percent. In a quarter that saw overall PC shipments in the U.S. decline 1.2 percent or 3 percent, that’s either pretty damn good or troubling, again depending on who you believe,” Paczkowski reports. “Good thing both firms describe these estimates as ‘preliminary,’ right?”

Paczkowski reports, “So what are we to make of this? A disparity of more than 200,000 units between the the Q2 domestic Mac shipment estimates of two top market research outfits? Is it a 2.5 percent year-over-year increase. Or a 12.4 percent year-over-year decrease?”

“I’ve no idea,” Paczkowski reports. “And clearly Gartner and IDC don’t either.”

Full article, with Gartner’s and IDC’s “preliminary” charts, here.

MacDailyNews Take: Apple plans to release Mac units sales numbers along with the financial results of its third fiscal quarter on Tuesday, July 21, 2009 after market close (expect the release right around 4:30pm EDT). We’ll wait to hear it from the horse’s mouth.

[Thanks to MacDailyNews Reader “JES42” for the heads up.]

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