5. Acer Group
Acer Group was the fifth-leading worldwide PC vendor in the second quarter, according to Gartner, with a market share of 6.7 percent, but took a large hit in shipments from last year.
The company shipped more than 4.5 million units in the June quarter, down 20.2 percent from the over 5.7 million units shipped in the year-ago quarter.
Acer has seen growth in its Chromebook business, but was likely impacted by exchange rates in foreign markets. In the U.S., Acer was not one of the top five PC vendors in terms of market share for the region, according to Gartner.