PC Shipments Fell 20.1% Last Quarter, IDC Says, as Memory-Driven Price Rises Bite

The squeeze on chips for AI data centres is now showing up in a market most people buy from: the PC. Preliminary figures from the research firm IDC, published on 8 October 2026, show PC shipments down by a fifth on a year earlier, and IDC expects prices to stay high. TSN offers no investment advice.

What IDC found

IDC preliminary data. “Worldwide PC shipments fell 20.1% year over year in Q3 2026 to 62.7 million units, according to preliminary results” from IDC [1]. IDC calls it “the second consecutive decline and a deeper one than the 3.8% drop in Q2”. “Shipments also slipped 9.1% sequentially”, meaning from the second quarter to the third [1]. That breaks the usual pattern, in which the July–September quarter is bigger than April–June [1].

A year earlier, in Q3 2025, IDC counted 78.5 million PCs shipped [1]. “Shipments” are units sent to retailers, distributors or end users, not necessarily units sold to customers [1].

Why, according to IDC

IDC’s explanation has two parts [1]:

• Stockpiling earlier in the year. “Continued supply constraints and the inventory pull-in earlier in the year, as vendors and channels rushed to stock up ahead of memory-driven price hikes, left the quarter with little demand to draw on.”
• AI-driven prices. IDC lists the primary drivers of the decline as “Strategic inventory pull-in across the entire industry as a result of on-going supply constraints and higher price points driven by AI data center build out”.

In plain terms: PC makers and shops bought heavily in the first half to beat expected price rises, so they had less need to buy in the third quarter. IDC also names “Supply issues, elevated prices, worsening macro conditions” as the key constraints [1]. The link to AI is IDC’s own wording; TSN adds no causal claim of its own. For background, memory chips go into both AI servers and PCs. TSN has covered Samsung’s record quarter, which Yonhap credited to AI demand for memory [2], why AI chips need so much specialised memory [3], and SK hynix’s planned new memory-chip cluster [4].

Prices will stay high, says IDC

IDC forecast. Jitesh Ubrani, research director for consumer devices at IDC, said: “Channels are now worried about carrying too much inventory into a market where high prices are suppressing demand. That could translate into promotions and some short-term relief for consumers, but we don’t expect pricing anywhere near what it was a year ago. Prices will remain elevated.” [1] IDC adds that worsening economic conditions could make the outlook for the rest of 2026 and into 2027 worse [1].

The vendors

IDC preliminary data, Q3 2026 shipments in millions, with year-on-year change [1]:

IDC says Lenovo, HP and Dell “all fell faster than the market and together ceded 4.2 points of share”, which it puts down to the effects of buying ahead earlier in the year [1]. IDC notes that its numbers are rounded [1].

What this does not prove

• That these are final figures. IDC labels them preliminary results; they can be revised [1].
• That AI alone caused the fall. IDC’s own explanation puts the stockpiling hangover first, alongside supply constraints, AI-driven prices and the economy [1].
• That fewer people are using PCs. Shipments measure units sent into the sales channel, not sales to buyers or devices in use [1].
• Exactly where prices go next. IDC expects them to stay “elevated”, with possible short-term promotions. That is a forecast [1].

The Bottom Line

IDC’s preliminary data show 62.7 million PCs shipped worldwide in Q3 2026, down 20.1% on a year earlier and 9.1% on the previous quarter. IDC blames buying ahead of “memory-driven price hikes”, continued supply constraints and higher prices it links to the AI data-centre build-out. Its message for buyers is that discounts may come but prices will not return to last year’s levels.

Related on TSN: Samsung’s Record Quarter and AWS’s Linux Foundation Seat: Two Signs of How AI Is Reshaping Big Tech; What Is Custom HBM? Why Nvidia Wants to Move the Memory Controller Off the Chip; AI Chip Supply: GlobalFoundries Will Make a Key Packaging Part for TSMC in New York

Sources

1. IDC, “PC Market Woes Continue: Shipments Fall 20.1% in Q3 2026 as Pull-In Hangover and Supply Constraints Bite”, press release, Boston, 8 October 2026 (IDC preliminary data from the IDC Quarterly Personal Computing Device Tracker; analysts Jitesh Ubrani, Ryan Reith and Bryan Ma; read in full by TSN 9 October 2026). https://idc.com/resource-center/press-releases/idc-pc-tracker-3q26/
2. TSN, “Samsung’s Record Quarter and AWS’s Linux Foundation Seat: Two Signs of How AI Is Reshaping Big Tech”, 8 October 2026. https://tsnmedia.org/samsung-q3-guidance-record-aws-linux-foundation-platinum/
3. TSN, “What Is Custom HBM? Why Nvidia Wants to Move the Memory Controller Off the Chip”, 9 October 2026. https://tsnmedia.org/what-is-custom-hbm-nvhbm-explained/
4. TSN, “AI Chip Supply: GlobalFoundries Will Make a Key Packaging Part for TSMC in New York” (with SK hynix memory-cluster update), 9 October 2026. https://tsnmedia.org/ai-chip-supply-globalfoundries-tsmc-interposers-tsmc-september-revenue/