HP and Dell boosted their share slightly year-over-year. Apple and ASUS saw their shipments drop, though, and Acer's results depend on who you ask (Gartner doesn't count Chrome OS PCs, IDC does). And the PC field as a whole was stagnant, to put it mildly. Gartner saw worldwide shipments grow a whopping 0.1 percent year over year, while IDC said it dropped 0.9 percent. Dreams of a PC renaissance are still on hold, to put it another way.

There is a small but important milestone, however: Microsoft is on the charts for the first time. The company's Surface shipments were just strong enough to slip into the top five US PC makers with 4.1 percent share. It's not about to upset its rivals (the next closest, Apple, had 13.7 percent share), but it's an achievement for a company that analysts previously relegated to the "other" category. It might stay in the top five, too, thanks to the introductions of the Surface Go, Surface Laptop 2 and Surface Pro 6.