Samsung, SK Hynix hit record highs as AI chip optimism persists

Published 16/10/2025, 06:58
© Reuters.

Investing.com-- Shares of Samsung Electronics (KS:005930) and SK Hynix (KS:000660) jumped to record highs on Thursday, buoyed by continued optimism over surging demand for artificial intelligence (AI) chips.

Samsung shares jumped 2.5% to 97,700 won, surpassing their previous record peak and extending this year’s sharp rally of nearly 80%. The world’s largest memory chipmaker has benefited from a rebound in DRAM and NAND prices, as well as stronger expectations for AI-related server components.

SK Hynix (KS:000660) stock surged nearly 7% to a new all-time high of 455,000 won, supported by enthusiasm over its lead in high-bandwidth memory (HBM) technology, a key component in AI accelerators used by firms such as Nvidia (NASDAQ:NVDA).

The company recently said it had completed internal certification for its HBM4 chips and is preparing for mass production next year.

The rally reflects investor confidence that South Korea’s two chip giants are emerging as key beneficiaries of the AI infrastructure boom, which continues to tighten supply for advanced memory products.

The broader KOSPI index jumped over 2% on Thursday, lifted by the semiconductor heavyweights.

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