SK Hynix (000660) shares soar nearly 30% on AI optimism

Published on 7/31/2026 · Source: cnbc.com

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SK Hynix (000660) shares soar nearly 30% on AI optimism

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On Friday, SK Hynix closed nearly 30% higher, marking its best day on record, while Samsung Electronics rose nearly 27%, also achieving its highest single-day gain. This surge follows a rally in U.S. technology stocks, driven by strong earnings from Amazon and Microsoft, boosting AI spending optimism. The iShares Semiconductor ETF (SOXX) gained more than 8% as investors returned to AI-linked chipmakers after recent worries over AI valuations and competition from Chinese firms. Such rebounds can influence investor sentiment and market dynamics, particularly for semiconductor stocks like SK Hynix (000660) and Samsung.

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