[Weekly Brief] 2026-07-21 JADISS research | 심텍, 삼성전자, SK하이닉스, 한미반도체

JADISS weekly brief · 2026-W30 · 2026-07-21

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The rapid expansion of Artificial Intelligence (AI) technology is fueling an explosive demand for high-performance semiconductors, establishing itself as a core driver for the industry. Yet, the market has recently entered a period of short-term adjustment, highlighting the need for a careful re-evaluation of investment strategies. This phase calls for a balanced view, considering both the long-term growth potential and the immediate market fluctuations. Explore the dynamics of the AI semiconductor market with JADISS.

심텍 chart
심텍 · JADISS research chart

The semiconductor industry has recently secured new growth momentum with the rapid advancement of Artificial Intelligence (AI) technology and the explosive increase in demand for high-performance computing. The importance of advanced memory like High Bandwidth Memory (HBM) and supporting high-performance substrate and packaging technologies has been particularly highlighted. While related companies have enjoyed long-term growth expectations amidst these trends, they appear to have entered a stock price adjustment phase recently due to short-term profit-taking and broader market volatility. This is interpreted as a result of complex factors including short-term supply and demand and psychological elements, rather than a change in the industry's fundamental growth drivers.

The spread of AI not only involves the production of AI chips but also creates ripple effects across the entire surrounding value chain. High-performance AI chips demand more data processing and power efficiency, which in turn boosts demand for high-performance storage, high-bandwidth RAM, and stable power supply units and cooling solutions. In particular, Printed Circuit Board (PCB) manufacturers like Symtek can expect direct benefits from the increased demand for high-value-added products such as high-layer count boards for AI accelerators and servers, and memory module boards. As AI technology becomes more sophisticated, the complexity of semiconductor packaging technology also increases, raising the difficulty of board design and manufacturing, which will act as a competitive advantage for technologically capable companies.

The current adjustment phase should be viewed as a process of short-term overheating resolution rather than a questioning of the long-term growth scenario for the AI semiconductor industry. The full-fledged advent of the AI era will continue to drive semiconductor demand in various forms, including data center expansion and the proliferation of on-device AI. Therefore, market re-evaluation may occur if positive news such as corporate earnings announcements, new order receipts, and new applications driven by AI technology development are confirmed. Conversely, if negative factors such as a deepening global economic slowdown or a slowdown in AI investment become prominent, the current adjustment could potentially be prolonged.

Symtek's stock price has shown a significant decline over the recent 5 and 20 days, with the RSI indicator entering an oversold zone at 27.75. The MACD is below the signal line, indicating downward momentum, and the Bollinger Bands %B is 0.166, close to the lower band, suggesting a deep short-term price correction. Technically, this implies a possibility of a short-term rebound, but additional positive momentum is needed for a trend reversal.

If the long-term growth outlook for the AI industry remains valid, and corporate earnings meet market expectations or new order news is confirmed, the current adjustment could present an attractive entry opportunity. Especially, the sustained competitive advantage in the high-value-added substrate segment is crucial.

A reassessment of the perspective should be considered if there are signs of slowing AI demand, if corporate earnings significantly fall short of expectations leading to clear profitability deterioration, or if competitors' technological catch-up accelerates, threatening market share.

AI's Impact on Semiconductors: Growth Drivers and Current Market Dynamics

The semiconductor industry is experiencing a surge in demand for high-performance computing, largely propelled by the rapid evolution of AI technology. This has highlighted the critical role of advanced memory solutions like High Bandwidth Memory (HBM) and sophisticated substrate and packaging technologies. While these trends have fostered long-term growth expectations for related companies, the market has recently entered an adjustment phase. This is primarily due to short-term profit-taking and broader market volatility, suggesting that while fundamental growth drivers remain strong, immediate supply-demand dynamics and market sentiment are at play.

The Ripple Effect of AI Across the Value Chain

AI's influence extends beyond just chip production, creating a widespread ripple effect across its entire value chain. The need for more data processing and enhanced power efficiency in high-performance AI chips drives demand for advanced storage, high-bandwidth RAM, and robust power supply and cooling solutions. Printed Circuit Board (PCB) manufacturers, for instance, are poised to benefit from increased demand for high-value-added products such as multi-layer boards for AI accelerators and servers. As AI technology advances, the complexity of semiconductor packaging also grows, elevating the design and manufacturing challenges for substrates, thereby creating a competitive edge for technologically proficient firms.

Navigating the Adjustment: Long-Term Prospects and Investment Considerations

The current market adjustment should be viewed as a temporary cooling-off period rather than a fundamental challenge to the AI semiconductor industry's long-term growth trajectory. The full realization of the AI era is expected to continuously fuel semiconductor demand through various avenues, including data center expansion and the proliferation of on-device AI. Positive developments such as strong corporate earnings, new order announcements, and innovative AI applications could trigger a market re-evaluation. If the long-term growth outlook for the AI industry remains robust, and company performance aligns with expectations or new orders are confirmed, the current adjustment could present an attractive entry point, especially for segments with a sustained competitive advantage in high-value-added substrates.

Evidence (JADISS synthesis)

  • The advancement of Artificial Intelligence (AI) technology is driving demand for high-performance semiconductors, increasing interest across the industry.
  • Policy discussions, such as the 'AI Basic Society' concept, highlight the importance of securing computing resources.
  • Positive outlooks for cloud computing infrastructure companies suggest an expansion in AI-related hardware demand.

Hold view

If the long-term growth outlook for the AI industry remains valid, and corporate earnings meet market expectations or new order news is confirmed, the current adjustment could present an attractive entry opportunity. Especially, the sustained competitive advantage in the high-value-added substrate segment is crucial.

Trim / exit view

A reassessment of the perspective should be considered if there are signs of slowing AI demand, if corporate earnings significantly fall short of expectations leading to clear profitability deterioration, or if competitors' technological catch-up accelerates, threatening market share.

Related names · tech snapshot

Related: 심텍, 삼성전자, SK하이닉스, 한미반도체 (chart focus: 심텍)

Close 99,400 · RSI 27.75 · 5D -7.96% · 20D -17.51%

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Disclaimer: Educational JADISS scenario. Not investment advice. No third-party news or broker reports are quoted.


This article is for informational purposes only and does not constitute investment advice. | JADISS

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