Hello
Although there is only one day left until next Monday, August, which was like a storm, has passed before we knew it.
Based on about 2,100 securities reports collected throughout August and news articles published in the Korea Economic Daily and Maeil Business Newspaper for a month, I summarized August's stock market and expectations for September using AI.
A Glance at August
📌 In a nutshell_
The key question in August shifted from "Is AI demand strong?" to "Who will resolve the bottleneck and convert it into cash flow?". While investment in semiconductors, electricity, and data centers became more concrete, the continuous interest rate hikes by the Bank of Korea and high long-term interest rates increased the discount rate for stocks that rose only with expectations. In September, companies whose price determination power, orders, customer verification, and shareholder returns are confirmed numerically are likely to see greater differentiation compared to the entire industry.
Category | Closing Price on July 31st | Closing Price on August 28th | August Change |
|---|
KOSPI | 6,595.45 | 6,788.88 | +2.93% |
KOSDAQ | 719.76 | 838.41 | +16.48% |
Samsung Electronics | 262,500 won | 257,000 won | -2.10% |
SK Hynix | 1,718,000 won | 1,653,000 won | -3.78% |
Although the indices rose, the two major semiconductor stocks declined for the month. This can be interpreted as a result of the circulation of funds from large-cap stocks with already high performance expectations to nuclear power, bio, KOSDAQ growth stocks, and small and medium-sized supply chains rather than weakening AI investment logic.
August Trend: A Month When the Market's Question Changed
Period | Main Trends | What the Market Confirmed |
|---|
Early Stage | Investment scope expanded to AI servers, networks, optical communication, power, and cooling | Bottlenecks existed not just in GPUs but in the entire data center supply chain. |
Mid Stage | Rotational buying in HBM, SOCAMM, power equipment, ESS, K-beauty and food exports, defense and shipbuilding | Production capacity and customer certification became the criteria distinguishing actual sales. |
Late Stage | NVIDIA earnings, long-term memory shortage, nuclear power plant orders, shareholder returns, Bank of Korea rate hikes | Customer profitability, cash flow, and quality of capital allocation became more important than growth rates. |
1. AI & Semiconductors: From Demand Verification to Supply Bottleneck and Profitability Verification
The most repeated theme in August reports was AI. Initially, GPU server expansion and HBM demand were the focus, but in the later part, the beneficiary range expanded to increased memory capacity, SOCAMM substrates, post-process and etching equipment, optical communication, and power semiconductors. It was viewed that even by 2030, memory shortage could exceed short-term inventory cycles due to increased memory content in AI servers and supply constraints (LS Securities). It was analyzed that NVIDIA CAPEX guidance and memory price affordability checks showed that securing memory supply became more important for expanding GPU sales.
NVIDIA's Q2 revenue was $96.2 billion, with data center revenue of $89.0 billion, confirming strong demand. However, the language in end-of-month reports has shifted from "is there demand" to whether customer ROI and NVIDIA's high gross margins can be sustained. Domestically, expectations have begun turning into actual investment, such as Semtech's 274.2 billion won expansion related to SOCAMM. In September, customer certification, yield, shipment volume, and funding methods are expected to become the criteria for stock differentiation rather than expansion announcements themselves.
2. Power, Data Centers, and Nuclear Power: The Most Long-term Bottleneck in AI Investment
Power demand for AI data centers has expanded from transformers and wiring to BESS, power semiconductors, capacitors, cooling, and construction and communication infrastructure. It suggested the possibility that as soon as it became clear that data center power stabilization requires more than just BESS, demand for load response and power quality improvement would expand to multiple power components (LS Securities). Power grid expansion is not so much a short-term theme as a trend where orders backlog and production capacity lead to results being recognized over several years.
For nuclear power, U.S. power shortages and financial support for long-delivery equipment, and the possibility of Westinghouse supply chain participation, were highlighted. Core entry barriers for nuclear power were identified as construction track record, local supply chains, and regulatory response, as nuclear power is built on experience (Shinhan Securities). However, there is a long time lag between policy announcements, formal contracts, equipment orders, and process revenue. In September, it is necessary to prioritize checking actual order disclosures and cost management capabilities over policy language.
3. Shareholder Returns and Governance: Capital Allocation Has Become as Important as Growth Rates
Expectations for large-scale returns from Samsung Electronics and SK Hynix, the possibility of share buybacks and cancellations by shipbuilding and holding companies, and dividend expansion in financial stocks were major themes in end-of-month reports. On the other hand, there were also concerns that personnel division, mergers, and affiliate support may not align financial stability with the economic interests of existing shareholders. In September, one should distinguish between cancellation status, return sources, fully diluted share count, and merger ratios, rather than just "return plans".
4. Bio & Healthcare: Quality of Contracts Over Contract Size
Hanmi Pharmaceutical's technology export for an obesity treatment based on UCN2 was highly valued for the upfront payment of approximately 262.9 billion won and the early-stage nature of the contract, compared to the total contract value of 3.2 trillion won. August bio reports began looking at partner development capabilities, upfront payments, milestone structures, and indication expansion together, rather than emphasizing only clinical expectations. In September, rather than chasing sharp rises after technology exports, one should verify whether clinical entry, efficacy and safety by dosage, and subsequent pipeline schedules sustain re-evaluation.
5. Consumer, Cosmetics & Food: Non-China Exports and Brand Differentiation
K-beauty's core was U.S. and Europe online sales, distribution platform inventory management, and orders from ODM and container companies. Food and beverages highlighted expansion into Europe and South America, not just the U.S. and China, centered on Samyang Foods. However, domestic distribution showed a disconnect between statistical recovery and actual consumer spending. In September, it is more appropriate to focus on companies that show sales ranking, repurchase, inventory turnover, and foreign subsidiary margins, rather than the industry as a whole.
6. Shipbuilding, Defense, Robotics & Secondary Batteries: Time Differences Between Orders and Results Must Be Distinguished
Shipbuilding and defense have strengths in long-term order backlogs and supply chain entry, but time gaps remain between exchange rates, costs, delivery, and order revenue recognition. Robotics expectations for domestic reducer and actuator localization have grown, but actual demand is needed to support high valuations. For secondary batteries, recovery signals that are narrow but confirmable, such as ESS/BESS, new customer certification, and price recovery for specific materials, were more important than a full turnaround in industry conditions.
September Outlook: Direction Remains But Volatility and Selection Intensity Will Increase
Scenario | Condition | Favorable Area | Risks to Check |
|---|
Basic | Continued AI investment, limited interest rate hikes, moderate upward revision of earnings outlook | Memory bottleneck, AIDC power·cooling, order-based industrial materials, companies with good cash flow | Profit taking of soaring stocks and industry rotation |
Upside | Increase in memory prices·shipments, stabilization of US inflation, recovery of foreign investor supply and demand | HBM·SOCAMM, semiconductor equipment, power equipment, KOSDAQ earnings growth stocks | Valuation overheating and supply expansion speed |
Downside | Reacceleration of US inflation·employment, rise in long-term interest rates·exchange rates, concerns about AI customer profitability | Companies with a lot of dividends·insurance·cash assets, defensive stocks | High-leverage growth stocks and theme stocks sensitive to certain delays |
