Chairman Choi Tae-won’s View on Long-Term Holding of SK Hynix: The Key to AI Memory Demand and Investment Decisions

At a Glance

Attention is focused on the fact that SK Chairman Choi Tae-won has issued a message urging investors to hold onto their SK Hynix shares for the long term rather than engage in short-term trading. The core of his remarks lies not in mere optimism about the stock price, but in an industry outlook that suggests demand for memory semiconductors is highly likely to grow in the long term due to the spread of AI.

However, it would be risky to take this message at face value as an investment conclusion. While SK Hynix is a key player in the AI semiconductor supply chain, the memory industry is inherently cyclical. Profits may surge during price uptrends, but earnings and stock prices can fluctuate significantly when oversupply and slowing demand set in.

Key Implications of the Remarks

Chairman Choi’s message can be interpreted in three main ways.

1. AI structurally increases memory usage. Generative AI, large language models, recommendation systems, and cloud inference services require the ability to quickly read and write large volumes of data. In this process, the importance of high-bandwidth memory, such as high-performance DRAM and HBM, grows.

2. He is advising investors to focus on the direction of the industry rather than short-term stock price predictions. Stock prices fluctuate significantly in the short term due to changes in interest rates, exchange rates, supply and demand, investor sentiment, and earnings outlook. From a long-term investment perspective, however, it is more important to assess whether a company can sustain its competitiveness in a growing market.

3. This statement emphasizes confidence in SK Hynix’s memory competitiveness. SK Hynix is a memory semiconductor company whose business centers on DRAM, NAND, and HBM. As the markets for AI servers and accelerators expand, the ability to supply high-performance memory becomes a critical factor in corporate valuation.

Why Is AI Driving Memory Demand?

AI systems do not operate on computation alone. They require massive memory bandwidth to store and retrieve data, process model weights, and perform training and inference. As the performance of GPUs and AI accelerators increases, the surrounding memory must also provide faster speeds and wider bandwidth to reduce bottlenecks.

Key Factors Driving AI Memory Demand

Why HBM Is Important

HBM stands for High Bandwidth Memory. It is a type of memory that significantly increases bandwidth by stacking multiple DRAM chips vertically and connecting them via a wide interface. As AI accelerators require the rapid supply of vast amounts of data, the importance of HBM has grown.

While standard DRAM is considered general-purpose memory, HBM can be viewed as high-value-added memory that is closely integrated with high-performance computing devices to rapidly exchange large volumes of data. Therefore, for HBM, factors such as technological capability, yield, packaging expertise, customer certification, and long-term supply contracts are more important than mere volume competition.

Rationale for the Case for Long-Term Holding of SK Hynix

The argument for long-term holding of SK Hynix is based on the following industry logic.

1. Investment in AI data centers is memory-intensive

AI data centers use more high-performance GPUs and AI accelerators than general-purpose servers. This equipment requires HBM and high-performance server DRAM. As AI services move beyond the experimental stage and are integrated into actual products and business systems, memory demand is likely to have a broader foundation than that of a short-term trend.

2. Memory Companies Have High Profit Leverage

The memory semiconductor industry is structured such that profits improve rapidly when prices rise. Because it is an industry with high fixed costs, operating profit margins can improve significantly as utilization rates and average selling prices increase. Conversely, losses can grow substantially during price downturns, resulting in high volatility in both directions.

3. HBM Has Higher Barriers to Entry Than General-Purpose Memory

It is difficult to compete in the HBM market simply by increasing production volume. It requires a combination of highly sophisticated stacking technology, thermal management, yield optimization, customer testing, and a packaging ecosystem. Therefore, leading companies are likely to command a premium for a certain period.

4. Memory Has Become More Strategic in the AI Supply Chain

In the past, memory semiconductors were often viewed merely as cyclical components. However, in the AI era, they are being reevaluated as core infrastructure components that determine computational performance. If this shift continues, the valuation criteria for memory companies may also change.

However, a long-term holding strategy is not always the right answer

While the long-term holding strategy emphasizes a company’s structural growth potential, investors must carefully assess the following risks.

Checklist for Investment Decisions

When deciding whether to hold semiconductor stocks like SK Hynix for the long term, it is better to review the following items rather than relying solely on statements from prominent figures.

• Earnings Trend: Are revenue, operating profit, and operating profit margin improving?
• HBM Competitiveness: Are certifications from major customers and supply expansion continuing?
• Sustainability of Demand: Determine whether AI data center investment is a one-time boom or will lead to long-term infrastructure investment.
• Supply Discipline: Is there a possibility that the industry will create another supply glut due to excessive capacity expansion?
• Financial Stability: Can the company manage its debt, cash flow, and capital expenditure burdens?
• Stock Price Level: To what extent are future growth expectations already reflected in the stock price?
• Portfolio Allocation: Is the portfolio overly concentrated in a single stock?

The Difference Between Short-Term Trading and Long-Term Holding

Chairman Choi’s remarks reflect a perspective leaning toward long-term holding rather than short-term trading. However, long-term holding is not the same as unconditional neglect. Long-term investors must regularly assess whether the company’s competitiveness is being maintained.

Key Data to Watch in the AI Memory Cycle

The following data is useful when evaluating AI memory investments.

1. HBM Revenue Share and Growth Rate As HBM’s share of total DRAM revenue increases, the likelihood of profit improvement driven by high-value-added products rises.

2. Trends in Average DRAM Selling Prices Memory companies’ profits are price-sensitive. It is crucial to determine whether prices are rising or falling.

3. Days of Inventory High inventory levels can increase downward pressure on prices, while low inventory levels can heighten the likelihood of supply shortages and price increases.

4. AI Infrastructure Investments by Major Customers Investment plans by cloud, GPU, and server companies serve as key indicators for gauging demand for HBM and server DRAM.

5. Capital Expenditures and Supply Growth Rate Even if demand is strong, prices may fall if supply grows faster. It is essential to monitor the pace of capacity expansion in the memory industry.

A Balanced Interpretation for Investors

Chairman Choi Tae-won’s message can be understood as emphasizing SK Hynix’s long-term growth potential. In particular, the fact that AI is driving memory demand and that HBM is establishing itself as a high-value-added product aligns with actual industry trends.

However, in the stock market, a promising industry does not always equate to strong returns. Even stocks in high-growth industries can yield poor long-term returns if purchased during an overvalued market phase. Conversely, even when facing short-term headwinds, a company with sustained long-term competitiveness can present a buying opportunity.

Therefore, the key is not “Should I not sell?” but rather clarifying “Why am I holding the stock, and what would cause me to revise my judgment?”

Conclusion

The argument for holding SK Hynix as a long-term investment is based on major trends such as the spread of AI, demand for HBM, and the rising strategic value of memory semiconductors. This logic is certainly worth considering. However, the cyclical nature of the memory industry, the high burden of capital expenditures, intensifying competition, and stock valuation risks must also be taken into account.

Investors should repeatedly review industry data and corporate earnings rather than relying on specific statements. Long-term holding is a process of assessment, not prediction, and SK Hynix’s long-term value depends on how long it can maintain its technological edge and profitability in the AI memory market.