Global chip stocks surge as blowout Micron results reignite AI rally


Currency dealers talk in front of an electronic board displaying the exchange rate between the U.S. dollar and South Korean won, the Korea Composite Stock Price Index (KOSPI) and South Korean won and the Korea Securities Dealers Automated Quotations (KOSDAQ) at the dealing room of a bank in Seoul, South Korea, June 8, 2026. REUTERS/Kim Hong-Ji

SEOUL/MILAN, ⁠June 25 (Reuters) - Global chip stocks surged on Thursday after Micron Technology’s blockbuster results reignited the AI-driven rally, lifting tech ⁠shares from Seoul to Frankfurt as investors grew more confident about persistent demand and tightening supply.

Micron, a key ‌supplier for Nvidia's AI chipsets alongside South Korean chipmakers, forecast quarterly profit and revenue well above expectations on Wednesday and said its customers had committed $22 billion to lock in supplies of memory chips.

The read-across was immediate in Europe, where Dutch chip-equipment maker ASML, the region's most valuable company, rose more than 4% following ​two days of heavy losses triggered by investors taking profits after a record ⁠surge.

Infineon, STMicroelectronics and ASM International also rose by ⁠around 4% to 6%, helping provide the main support for benchmark indices. Europe's tech index was the biggest sectoral gainer, up ⁠more ‌than 2%, bringing year-to-date gains to 24%.

South Korean semiconductor shares also rallied sharply, pushing the benchmark KOSPI index up 5.4% on the day to recoup most of this week’s losses.

Samsung Electronics and SK Hynix, which together account for more than ⁠half the index's market capitalisation, rose 5.3% and 13.1%, respectively.

"Micron's earnings will likely ​give a sugar boost to tired tech ‌runners," said Swissquote senior analyst Ipek Ozkardeskaya. "It was hard to find a reason to take profits after such a ⁠strong beat."

Micron's Frankfurt-listed shares ​rose more than 18%, tracking after-market gains on Wall Street.

The upbeat Micron outlook reinforced expectations that AI-driven demand for memory chips will remain robust despite concerns over heavy spending on AI infrastructure.

LITTLE SIGN OF DEMAND DESTRUCTION

JPMorgan said it saw little sign of demand destruction, adding that tight supply should ⁠persist and recommending investors “add on any dips”, while maintaining an overweight stance ​on South Korea.

"Memory shortages were triggered by the explosive need for AI factory infrastructure ... and we believe the role of memory as a strategic asset in Artificial General Intelligence remains unchanged," analysts at the U.S. bank said.

South Korea's SK Hynix also said on Wednesday it ⁠plans to raise up to $29.4 billion through a U.S. stock market listing, boosting investor expectations of a reduced valuation gap between the chipmaker and its smaller U.S. rival Micron.

In a rollercoaster ride, Samsung Electronics and SK Hynix have seen their market capitalisation climb above $1 trillion this year.

Samsung is now worth around $1.47 trillion, giving it a market value greater than Tesla or Meta.

JPMorgan also described South Korea ​as its preferred market in the region, while raising a 12-month KOSPI target to 12,500 ⁠points. The KOSPI closed Thursday at 8,930.30.

Jeff Kim, head of research at KB Securities-Jefferies, said Samsung is likely to join SK Hynix ​in listing in the U.S. market through American Depositary Receipts (ADRs), giving a boost to ‌the share prices of Korean chipmakers, which lag behind Micron in ​valuation.

"Chip stocks are at an inflection point. ADRs will be a strong catalyst for their valuation," he said.

($1 = 1,539.66 won)

(Additional reporting by Heekyong Yang and Hyunjoo Jin in Seoul; Editing by Ed Davies, Amanda Cooper and Kevin Buckland)

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