What Happened

Recently, the global AI industry has been continuously expanding beyond the existing AI semiconductor sector to encompass overall data center infrastructure. Japan's SoftBank announced its new entry into the battery business to provide stable power to AI data centers, and the stock price of related company Lumentum surged, driven by the rapidly increasing connectivity demand from AI data centers. Meanwhile, the emergence of high-performance AI models like Anthropic's 'Mythos' is highlighting the need for enhanced infrastructure cybersecurity in Japan, and Google announced it had proactively blocked large-scale hacking attempts using AI, emphasizing the potential threats and the importance of countermeasures that AI technology advancement can bring. Amidst these trends, market enthusiasm for AI-related stocks continues, with SK Hynix's stock price surging 11% and leading the KOSPI to an all-time high.

Why It Matters

This series of events demonstrates that the comprehensive expansion of the AI industry, consistently emphasized in the 'global-ai-sector-dynamics-2026' event chain, is becoming more concrete. Previously, attention was concentrated on AI semiconductors, especially HBM (High Bandwidth Memory), but now it is spreading across the entire industry, from batteries as power sources for data centers, connectivity technology for data transmission, to the security and utilization of AI models themselves. This signifies that AI technology is no longer confined to specific sectors but is establishing itself as a 'general-purpose technology' that transforms the foundation of all industries. Furthermore, hacking attempts surrounding AI technology and efforts to defend against them suggest the opening of a new security market in the AI era, which is expected to provide new opportunities for related technology and service companies.

Impact on the Korean Market

The comprehensive expansion of the global AI industry is expected to have a positive impact on the Korean market. In particular, Korea, led by Samsung Electronics and SK Hynix, is a leader in the memory semiconductor market and will directly benefit from the increased demand for not only HBM but also general-purpose DRAM and NAND flash required for AI computing. With the expansion of data center infrastructure, growth is also anticipated for related component and equipment companies, including power semiconductors, cables, and cooling systems. Moreover, the growth of the AI security market could offer new business opportunities for domestic information security companies. The advancement of AI technology is acting as a driving force for the domestic stock market, leading the KOSPI to an all-time high, and this trend is expected to continue for some time.

Key Stock Analysis

  • SK Hynix (000660, stock): Based on the surging demand for AI semiconductors, especially its unparalleled competitiveness in the HBM market, SK Hynix is expected to maintain its stock price upward momentum. The increased demand for general-purpose DRAM due to data center expansion is also positive. (sentiment: positive)
  • Samsung Electronics (005930, stock): Samsung Electronics is expanding its presence in the AI semiconductor market by strengthening its HBM and foundry technologies, making it a major beneficiary of the overall improvement in the memory semiconductor industry. (sentiment: positive)
  • Hanmi Semiconductor (042700, stock): As a leader in the TC bonder market, essential equipment for HBM production, Hanmi Semiconductor is expected to directly benefit from the increased demand for AI semiconductors. (sentiment: positive)
  • HPSP (403870, stock): Based on its exclusive technology in high-pressure hydrogen annealing equipment, HPSP is expected to grow by contributing to the yield improvement of AI semiconductors. (sentiment: positive)
  • EO Technics (039030, stock): EO Technics, a specialist in semiconductor post-processing equipment such as laser annealing and marking equipment, is expected to benefit from the increased production of AI semiconductors. (sentiment: positive)
  • Copper (COPPER, commodity): Demand for copper, an essential material for AI data center construction and related infrastructure (power grids, communication networks) expansion, may increase, leading to upward price pressure. (sentiment: positive)
  • US 10-Year Treasury (US10Y, bond): Expectations for innovation and productivity improvement in the AI industry can enhance long-term economic growth prospects, acting as upward pressure on interest rates. (sentiment: neutral)
  • Ethereum (ETH, crypto): The potential for convergence of AI and blockchain technology is continuously being discussed, and expectations for the development of AI-powered decentralized applications (dApps) could have a positive impact. (sentiment: neutral)

Future Scenarios

There seems to be no disagreement that the growth of the AI industry will continue for some time. An optimistic scenario is one where AI technology is successfully applied across various industries, innovating productivity and creating new markets, with related infrastructure investments becoming even more active. In this case, not only related hardware industries such as semiconductors, batteries, and network equipment, but also the AI software and services market will grow concurrently. A pessimistic scenario is one where the pace of AI technology development slows more than expected, regulations tighten, or AI-powered cyber threats materialize, putting a brake on industry growth. Investors should closely monitor the earnings announcements of AI-related companies, new technology development trends, and changes in AI-related regulatory policies by governments worldwide. In particular, new opportunities are highly likely to emerge in the fields of data center power efficiency technologies and AI security solutions.