SK hynix Inc. shares surged over 20% on July 31, 2026. The stock hit the daily price ceiling on the Korea Exchange with a near 30% gain. This rally followed a period of volatility despite record second-quarter profits.
Strong earnings from Microsoft and Amazon renewed investor optimism in the technology sector. These results signaled robust capital expenditure on artificial intelligence infrastructure.
SK hynix serves as a leading supplier of high-bandwidth memory (HBM) for AI applications. UBS Group further supported market sentiment by upgrading the company to a strong-buy rating.