Apple's worldwide Mac shipments were down in the third quarter of 2018, according to new preliminary PC shipping estimates shared this afternoon by Gartner.
During the quarter, Apple shipped an estimated 4.9 million Macs, compared to 5.4 million in the third quarter of 2017 for an 8.5 percent drop. Apple's market share also declined, dropping from 8 percent in 3Q17 to 7.3 percent in 3Q18.
Apple continues to be the number four PC vendor in the world, ranking below Lenovo, HP, and Dell, but above Acer and Asus. Lenovo was the number one vendor during the quarter, shipping an estimated 15.8 million PCs for 23.6 percent market share.
HP came in second with 14.6 million PCs shipped for 21.8 percent market share, while Dell was third with 10.7 million PCs shipped and 16 percent market share. Acer and Asus both shipped around 4 million PCs for 6.1 and 6 percent market share, respectively.
Apple's decline in Mac sales is no surprise as the company has yet to update much of its Mac lineup for 2018. The only Mac that has seen a refresh so far is the MacBook Pro, with MacBook, MacBook Air, and Mac mini updates still on the horizon for a fall launch.
Falling Mac sales come amid stagnant growth for the overall worldwide PC market. A total of 67.2 million PCs were shipped during the quarter, an 0.1 percent increase from the third quarter of 2017.
Apple also saw a decrease in Mac shipments in the United States during 3Q18. Apple shipped a total of 2 million Macs during the quarter, down from 2.2 million in 3Q17, for a 7.6 percent drop in growth and 13.7 percent market share.
HP was the number one PC vendor in the United States, shipping 4.5 million PCs for 30.7 percent market share. Dell came in at number two with 3.8 million PCs shipped and 25.9 percent market share, while Lenovo was third with 2.3 million PCs shipped and 15.4 percent market share.
IDC also released its own shipment estimates this afternoon, noting a similar decline in sales for Apple. According to IDC, Apple shipped 4.8 million Macs during the quarter, down from the aforementioned 5.4 million, a decline of 11.6 percent.
In IDC's rankings, Apple falls below Lenovo, HP, Dell, and Acer, coming in as the number five worldwide PC vendor. IDC's data also suggests an overall worldwide PC market decline of 0.9 percent rather than the 0.1 percent growth noted by Gartner.
Apple could see its Mac shipments jump back up during the fourth quarter of 2018 and the first quarter of 2019 as there are multiple Mac updates that we're expecting towards the end of the year, perhaps as early as October.
It's important to note that data from Gartner and IDC is preliminary and the numbers can shift, sometimes dramatically and sometimes less so. Last year, for example, Gartner said that Apple shipped 4.6 million Macs worldwide during the third quarter of 2017 when the actual number was significantly higher at 5.4 million.