SK Hynix and Samsung secured combined $950 billion in AI chip supply agreements with Nvidia and Broadcom, representing a major validation of demand from hyperscalers building out GPU infrastructure. Yet both Korean chipmakers saw share prices decline on Monday as profit-taking overwhelmed the positive news.
The deals underscore the intense competition for memory and interconnect components feeding the AI boom. Nvidia's GPU ecosystem requires high-bandwidth memory and advanced packaging solutions. Broadcom supplies optical interconnect systems critical for data center clustering. SK Hynix and Samsung control roughly 95% of the DRAM market and significant HBM capacity, making them essential to Nvidia's supply chain as data centers scale AI workloads.
The stock retreat reflects a common market pattern. Large announced deals often trigger immediate selling by investors who built positions ahead of the announcement, banking profits once news hits. Monday's decline suggests the market had already priced in expectations of AI chip demand flowing to Korean suppliers. Both companies trade on Seoul's KOSPI index, where volatility around major corporate announcements runs high.
SK Hynix has pivoted aggressively toward high-bandwidth memory for GPUs, with HBM3 and HBM3E products commanding premium pricing. Samsung expanded its HBM capabilities to compete for AI infrastructure spending. These supply agreements de-risk revenue streams for both firms as data center capex continues accelerating through 2025.
The broader context matters. Taiwan's TSMC, South Korea's chipmakers, and Japanese manufacturers have all benefited from AI infrastructure buildout. SK Hynix and Samsung's secured orders provide visibility into hyperscaler capex plans through at least 2026. Yet execution risk remains. Demand could shift, manufacturing constraints could emerge, or competitive pressure might compress margins.
Profit-taking erases neither the fundamental demand drivers nor the strategic value of locking in major customers. SK Hynix and Samsung now have contractual assurance of AI chip revenue at a moment when data center spending remains the industry's primary growth vector.