SK Hynix shares rise as rival Samsung sees sharp profit drop in Q2

SK Hynix shares jumped 3.7% on Tuesday, buoyed by robust demand for its high-bandwidth memory (HBM) modules that position it for projected record quarterly earnings amid the AI chip market boom. This contrasts sharply with rival Samsung Electronics, whose shares fell 0.8% after forecasting a 56% plunge in Q2 operating profit to 4.6 trillion won ($3.3 billion)—its weakest in six periods—attributing the decline to U.S. export restrictions impacting AI chip sales to China and delays in HBM deliveries to NVIDIA. The divergent performance highlights the critical impact of AI market positioning and geopolitical factors on memory sector profitability.

Analysis

A significant divergence is evident in the South Korean memory chip sector, driven by performance in the high-bandwidth memory (HBM) market for AI applications. SK Hynix (KS:000660) shares surged by as much as 3.7% and the company is projected to report its highest-ever quarterly earnings, directly benefiting from strong demand for its HBM modules. In stark contrast, Samsung Electronics (KS:005930) shares fell 0.8% after it forecast a 56% year-over-year decline in Q2 operating profit to 4.6 trillion won, its weakest result in six quarters. Samsung's underperformance is attributed to two primary factors: U.S. export restrictions impacting AI chip sales to China and, critically, delays in delivering its own HBM chips to key customer NVIDIA. This divergence underscores that market leadership and execution within the AI supply chain, particularly in meeting demand from pivotal players like NVIDIA, are now the primary determinants of valuation and profitability in the semiconductor memory industry, outweighing broader market movements like the KOSPI's minor 0.2% decline.

Key Decisions for Investors

• Consider a pairs trade strategy, going long SK Hynix (KS:000660) and short Samsung Electronics (KS:005930), to capitalize on the clear divergence in HBM market execution and near-term earnings outlook.
• For investors holding or considering Samsung, closely monitor any company announcements regarding the resolution of HBM delivery delays to NVIDIA, as this is a key operational overhang and a potential near-term catalyst.
• Recognize NVIDIA's critical role as a kingmaker in the memory sector; the ability of suppliers like SK Hynix and Samsung to meet its demanding HBM roadmap is a primary factor to assess when evaluating their long-term competitive positioning and investment merits.