--- title: "Asian Tech Shares Tumble as AI Cost Fears Hit Chipmakers" description: "Asian stock markets fell sharply this week, led by a steep drop in South Korea, as anxiety over the cost of the artificial-intelligence boom hammered chipmakers and other technology shares from Seoul to Tokyo." category: "Business" category_url: https://newsparlor.com/category/business author: "Maya Coleman" published: 2026-06-26T06:12:47.000Z updated: 2026-06-26T06:12:47.000Z canonical: https://newsparlor.com/article/asian-tech-shares-tumble-as-ai-cost-fears-hit-chipmakers tags: ["markets", "AI", "semiconductors", "South Korea", "technology"] --- # Asian Tech Shares Tumble as AI Cost Fears Hit Chipmakers Asian stock markets fell sharply this week, led by a steep drop in South Korea, as anxiety over the cost of the artificial-intelligence boom hammered chipmakers and other technology shares from Seoul to Tokyo. A wave of selling swept Asian technology stocks this week, driven by mounting unease over the costs of the artificial-intelligence boom that had powered the same shares to record highs. ## South Korea leads the fall The epicenter was Seoul. South Korea's benchmark KOSPI index suffered one of its worst sessions on record, plunging close to 10% in a single day and triggering automatic trading halts, [CNN Business reported](https://www.cnn.com/2026/06/23/business/stock-market-kospi-dow-nasdaq-ai). The damage was concentrated in the country's two memory-chip giants: Samsung Electronics and SK Hynix, which together make up a large share of the index, both fell by double digits. Because the two dominate the KOSPI, their slide was enough to drag the whole market down. ## The trigger The proximate spark, analysts said, was Apple's decision to raise prices on its Macs, iPads and other devices to offset surging memory-chip costs — a sign that the AI-driven scramble for memory is now feeding through into consumer prices, [Bloomberg reported](https://www.bloomberg.com/news/articles/2026-06-26/apple-price-hikes-spark-asia-tech-selloff-on-memory-cost-concern). Investors had treated Korean and Japanese chipmakers as clear winners from AI demand; the price increase complicated that story, raising questions about device demand and how sustainable the memory "supercycle" really is. ## Contagion across the region The selling spread. Japan's Nikkei 225 fell several percent, with the technology investor SoftBank among the heaviest fallers, and chip-related names in Tokyo, Taiwan and Hong Kong also dropped, [CNBC reported](https://www.cnbc.com/2026/06/25/stock-market-today-live-updates.html). The pressure carried over to the United States, where the Nasdaq and the main semiconductor index had already fallen sharply. Exact closing figures varied by market and day as the sell-off extended. ## A crowded trade Several other factors amplified the move, analysts said: AI and chip stocks had become a "crowded trade" after a long rally, so any negative signal could prompt outsized swings; leveraged bets by retail investors on Korean chipmakers were unwound; and a cautious tone from the US Federal Reserve weighed on rate-sensitive growth shares. Wall Street strategists were divided on what it means. Some cautioned that the episode reflected stretched positioning and sentiment rather than any deterioration in the underlying business — noting that forecasts for AI infrastructure spending have not been cut — while others warned that the scale of the move was a reminder of how far valuations had run. Whether this proves a sharp but temporary reset or the start of a deeper reckoning with AI valuations will likely hinge on upcoming results from the big chipmakers and any further signals on the cost of the AI build-out. The figures here are drawn from exchange data and wire reports and may be revised. ## Sources - [Apple price hikes spark Asia tech selloff on memory-cost concern](https://www.bloomberg.com/news/articles/2026-06-26/apple-price-hikes-spark-asia-tech-selloff-on-memory-cost-concern) - [Wall Street trampled by an AI sell-off as South Korea's market plunges](https://www.cnn.com/2026/06/23/business/stock-market-kospi-dow-nasdaq-ai) - [Stock market today: South Korea's Kospi falls; Asia tech under pressure](https://www.cnbc.com/2026/06/25/stock-market-today-live-updates.html)