Shares of SK Hynix and Samsung Electronics rallied over 20% on Friday following strong cloud growth reports from Amazon and Microsoft. This recovery highlights investor optimism regarding AI infrastructure spending after a week of valuation concerns. The gains reflect a broader rebound in global semiconductor stocks, including major players in Japan.
South Korean semiconductor leaders SK Hynix and Samsung Electronics experienced a sharp rebound in Friday's trading session, with share prices rising by more than 25% and 20% respectively. This recovery comes as global investors recalibrate their outlook on the artificial intelligence sector, following positive financial results from major U.S. technology firms.
Strong Cloud Earnings Fuel Semiconductor Recovery
The rally was primarily triggered by better-than-expected performance from U.S.-based cloud giants. Microsoft reported growth in its Azure division that exceeded analyst forecasts, while Amazon delivered second-quarter revenue figures that beat market expectations. Because these companies are major buyers of high-end memory chips and AI-focused infrastructure, their strong financial health suggests that demand for semiconductor hardware remains robust. The iShares Semiconductor ETF, which tracks a basket of chip-related stocks, jumped over 8% in U.S. trading, mirroring the positive sentiment felt across Asian markets.
Sector-Wide Gains in Asia
The optimism extended beyond the two major South Korean firms. Other regional companies, including LG Innotek and Seoul Semiconductor, saw significant gains of 11.2% and 7.8% respectively. The impact was also visible in Japan, where semiconductor equipment suppliers like Advantest, Tokyo Electron, and Disco recorded double-digit growth. SoftBank Group also moved higher by more than 9%, supported by its significant stake in chip designer Arm.
Balancing Valuation and Competition Risks
This week’s price jump follows a period of notable pressure on semiconductor stocks. Prior to these gains, the sector had faced volatility driven by two primary concerns. First, investors had become cautious about high valuations in the AI space, questioning whether the rapid price growth of chip manufacturers was fully supported by near-term profits. Second, there has been ongoing pressure from the entry of Chinese memory chipmakers, who are working to increase their capacity and compete with established leaders like Samsung and SK Hynix.
While the current rally highlights confidence in the AI infrastructure cycle, investors continue to monitor whether this demand can sustain long-term profit margins. Future performance will likely depend on whether the strong cloud computing results seen at companies like Microsoft and Amazon translate into consistent, long-term order books for chip manufacturers. Investors may track upcoming capital expenditure announcements from major tech companies, as these serve as a direct indicator of future demand for the hardware that supports artificial intelligence systems.