Korea Stock Market Insights

Tag: After-Hours Trading

  • Samsung Biologics After-Hours Trading Analysis: Unveiling Hidden Meanings and Investment Strategies

    1. What Happened?: After-Hours Trading Analysis

    On September 11, 2025, a large block trade of 13,330 shares, totaling ₩13.8 billion, occurred during after-hours trading. Both buyers and sellers were foreign investors, with the selling amount slightly exceeding the buying amount. While the transaction size is small relative to the market capitalization, the movements of foreign investors warrant attention.

    2. Why It Matters: Business Report Amendment Analysis

    Samsung Biologics recently amended its business report, clarifying the calculation method for contract amounts in single sales and supply contracts, and providing further details on the minimum purchase guarantee. By emphasizing the client’s obligation to pay for the minimum purchase quantity, the company highlighted the stability of the contract. This is a positive signal, enhancing revenue stability and predictability.

    3. What’s Next?: Market Outlook and Investment Strategies

    The short-term impact of the after-hours trading itself is expected to be limited. However, the continued interest of foreign investors and the reinforced contract stability highlighted in the amended business report are expected to be positive factors in the medium to long term. However, investors should pay attention to changes in the macroeconomic environment, such as exchange rate fluctuations and potential increases in raw material prices.

    4. Investor Action Plan

    • • Continuously monitor foreign investor trading trends
    • • Carefully observe changes in the macroeconomic environment
    • • Track news related to Samsung Biologics’ fundamentals, including new contract wins and pipeline performance
    How will the after-hours trading impact Samsung Biologics’ stock price?

    The short-term impact is expected to be limited, but the movements of foreign investors are worth noting.

    What are the key takeaways from the amended business report?

    It clarified the contract amount calculation method and emphasized the customer’s payment obligation for the minimum purchase quantity, highlighting the stability of the contract.

    What should investors consider when investing in Samsung Biologics?

    Investors should continuously monitor foreign investment trends, macroeconomic changes, and news related to the company’s fundamentals.

  • JS Link After-Hours Trading Deep Dive: Opportunity or Red Flag?





    What Happened? JS Link After-Hours Trading Analysis

    After the market closed on September 11, 2025, JS Link experienced a significant after-hours trading event with a volume of 437,987 shares, totaling approximately 7.8 billion KRW. Notably, institutional investors sold off around 5.6 billion KRW worth of shares, while foreign investors bought approximately 580 million KRW. This represents about 1.5% of the company’s market capitalization (520.4 billion KRW), which might not significantly impact short-term stock prices. However, after-hours trading often reflects crucial information, warranting further analysis of its underlying causes.

    Why Did It Happen? Fundamental and Financial Analysis

    JS Link is pursuing business diversification, shifting from its existing bio and healthcare business to permanent magnets and rare earth magnet recycling. While this diversification strategy appears positive for long-term growth, the company’s financial status, as of the 2024 business report, raises concerns. With retained earnings showing a deficit of 86.2 billion KRW and an operating loss of 9.1 billion KRW, the financial burden of investments in new businesses is a significant risk. This financial difficulty could be linked to the substantial sell-off by institutional investors. Furthermore, the current order backlog of 7.2 billion KRW, while contributing to short-term sales, remains insufficient considering the expected contribution from the new business segments.

    What’s the Investment Strategy? Market Context and Recommendations

    Recent macroeconomic indicators, such as exchange rates, interest rates, and oil prices, have remained relatively stable. However, the volatility of exchange rates remains a concern, particularly given the new business’s reliance on raw material imports. In the short term, investors should observe the market’s reaction to the sell-off and seek further information regarding the motivations behind it. A long-term strategy requires close monitoring of the new business’s performance, the improvement of profitability in existing segments, and the company’s efforts to strengthen its financial health.

    Key Action Plan for Investors

    • Short-term: Verify the reasons behind the after-hours trading and monitor stock price trends.
    • Long-term: Monitor the progress of new business ventures, profitability of existing business, and efforts to improve the financial structure.


    Frequently Asked Questions

    What are JS Link’s main businesses?

    JS Link is diversifying its business portfolio beyond its existing bio and healthcare operations to include permanent magnets and rare earth magnet recycling.

    Who were the main parties involved in the after-hours trading?

    Institutional investors sold a large volume of shares (approx. 5.6 billion KRW), while foreign investors purchased a smaller amount (approx. 580 million KRW).

    What is the current state of JS Link’s financials?

    As of 2024, JS Link reported a deficit in retained earnings of 86.2 billion KRW and an operating loss of 9.1 billion KRW. Improving the financial situation is crucial.

    What should investors be cautious of?

    While the business diversification holds growth potential, investors should exercise caution considering the current financial difficulties and the reasons behind the large sell-off in after-hours trading.



  • SK Square’s After-Hours Block Trade: Unpacking the Implications and Investment Strategies (September 2025)





    1. What Happened with SK Square?

    After the market closed on September 10, 2025, a large block of 44,625 SK Square shares was traded for ₩7.8 billion. The substantial foreign buying and selling activity on the same day is also noteworthy.

    2. Why Did This Happen?

    Positive Factors: SK Square reported impressive growth in Q2 2025, with consolidated operating profit reaching ₩305.3 billion, a 177.8% year-on-year increase. This strong performance was fueled by the profit from its stake in SK Hynix (₩1.46 trillion) and the robust performance of its investment business segment. Additionally, a low debt-to-equity ratio of 9.84% demonstrates a stable financial structure.

    Negative Factors: The operating losses of some subsidiaries, such as 11st and SK Planet, remain a concern. Furthermore, macroeconomic uncertainties, including high interest rates and exchange rate volatility, could weigh on investor sentiment.

    3. What’s Next for SK Square?

    The after-hours block trade may increase short-term price volatility. However, SK Square’s fundamentals remain strong, and its long-term growth potential is still high. Future stock performance is likely to depend on SK Hynix’s earnings, the improvement in subsidiary profitability, and the overall macroeconomic environment.

    4. What Should Investors Do?

    Instead of reacting to short-term market fluctuations, investors should focus on SK Square’s fundamentals and long-term growth potential. Before making any investment decisions, it’s crucial to thoroughly research relevant information and consider your own risk tolerance. Reviewing analyst reports and market consensus can also be helpful in making informed investment decisions.



    FAQ

    What are SK Square’s main businesses?

    SK Square operates in Investment, Commerce (11st), Platform (SK Planet, One Store, Dreamus Company), Mobility (Tmap Mobility, FSK L&S), and Other (Incross) businesses.

    What does an after-hours block trade mean?

    An after-hours block trade refers to a large volume of shares traded outside of regular trading hours and can indicate the intentions of specific investors.

    Should I invest in SK Square?

    Investment decisions are ultimately personal, but SK Square’s strong fundamentals and growth potential are worth considering. However, macroeconomic uncertainties and the underperformance of some subsidiaries pose risks. Thorough research and consulting with a financial advisor are recommended before investing.



  • Hanwha Aerospace After-Hours Block Deal Analysis: Short-Term Impact and Long-Term Investment Value





    1. What Happened?

    An after-hours block deal of Hanwha Aerospace shares worth 12.2 billion KRW (12,613 shares) took place on September 10, 2025. While the transaction size is relatively small compared to the company’s market capitalization, the notable buying activity from foreign investors is worth examining.

    2. Why Did This Happen?

    While this after-hours block deal could be a simple position adjustment, it’s highly likely influenced by Hanwha Aerospace’s recent positive fundamentals. According to the 2025 semi-annual report, the company’s impressive growth in the marine business, stable revenue base in the defense sector, and future growth potential in the aerospace business are attracting investor interest.

    3. What’s Next?

    • Positive Factors: The net buying by foreign investors is a positive market signal, and the company’s strong fundamentals could act as momentum for stock price appreciation.
    • Considerations: Macroeconomic uncertainties and company-specific risks should be carefully considered when making investment decisions. Further analysis is needed to understand the exact background of the after-hours transaction.

    4. What Should Investors Do?

    Instead of reacting to short-term price fluctuations, it’s essential to focus on the company’s mid-to-long-term growth potential. Investors should develop their investment strategies by continuously monitoring foreign investment trends, macroeconomic variables, and business-specific risk factors.



    FAQ

    How does the after-hours block deal affect the stock price?

    The transaction size is relatively small compared to the market capitalization, suggesting a limited short-term impact. However, the net buying by foreign investors can be interpreted as a positive sign.

    What are the key investment points for Hanwha Aerospace?

    The company’s diversified business portfolio in growth sectors like marine, defense, and aerospace, combined with its strong fundamentals, makes it an attractive investment.

    What should investors be aware of?

    Investors should continuously monitor macroeconomic uncertainties and company-specific business risks.



  • Samsung Fire & Marine Insurance After-Hours Trading Analysis: Investment Strategies and Future Outlook





    What Happened?

    On September 8, 2025, a large block trade of 36,000 shares, totaling ₩16.6 billion, occurred in Samsung Fire & Marine Insurance during after-hours trading. Foreign investors were the primary buyers and sellers.

    Why Did This Happen?

    The exact cause is unclear, but it could be due to foreign investors adjusting their positions or reacting to changing market conditions. The after-hours nature of the trade suggests an attempt to minimize the impact on price fluctuations during regular trading hours.

    What Does This Mean?

    In the short term, increased stock price volatility is possible. In the long term, monitoring foreign investor trends and macroeconomic indicators is more crucial than this single event. The company’s fundamentals are not expected to be directly affected.

    Investor Action Plan

    We maintain a ‘BUY’ rating for Samsung Fire & Marine Insurance, based on its robust fundamentals. However, it’s important to consider the following factors when developing your investment strategy:

    • • Foreign investor trends
    • • USD/KRW and EUR/KRW exchange rate fluctuations
    • • US and Korean interest rate changes
    • • Changes in the competitive landscape of the insurance market
    • • Performance of new business investments (Lloyd’s, Tencent, etc.)


    FAQ

    How will the after-hours trading affect the stock price of Samsung Fire & Marine Insurance?

    It may increase stock price volatility in the short term, but the long-term impact is expected to be limited. Monitoring subsequent foreign investor trends and macroeconomic indicators is more important.

    Is it a good time to invest in Samsung Fire & Marine Insurance?

    We maintain a ‘BUY’ rating based on strong fundamentals, but investors should carefully consider factors like exchange rates, interest rates and market competition before making a decision.

    What is the future outlook for Samsung Fire & Marine Insurance?

    Stable growth is expected due to robust fundamentals and global business expansion. However, continuous monitoring of changes in the macroeconomic environment is necessary.



  • Hanwha Ocean’s After-Hours Block Trade: Decoding the ₩1.5 Trillion Deal

    2. What Happened? – The ₩1.5 Trillion After-Hours Block Trade

    On September 5, 2025, a massive 13,333,805 shares of Hanwha Ocean were traded for approximately ₩1.5 trillion in an after-hours block trade. Foreign investors were at the heart of this activity, both buying and selling substantial volumes, indicating a potential program trade or block deal.

    3. Why Did This Happen? – Understanding the Context

    3.1 Fundamental Summary

    • Positive Factors: Increased revenue and profitability, business diversification, eco-friendly technology competitiveness, and a solid order backlog.
    • Potential Risk Factors: High debt ratio, exchange rate fluctuation risk, and rising interest rates.

    3.2 Market Environment Analysis

    • KRW/USD Exchange Rate Increase: Positive for Hanwha Ocean’s foreign currency revenue.
    • Expected Interest Rate Freeze/Cut: Positive for alleviating debt burden.
    • Volatility in International Oil Prices and Baltic Freight Index: Limited Impact.

    4. What’s Next? – Analyzing the Short-Term and Long-Term Impacts

    4.1 Short-Term Impact

    • Increased stock price volatility and supply-demand imbalance.
    • Impact on market sentiment (positive or negative).

    4.2 Long-Term Impact

    • Changes in foreign ownership and market expectations.
    • Potential for improvement or deterioration of financial structure.
    • Interaction with macroeconomic factors.

    5. What Should Investors Do? – Action Plan

    • Analyze the parties involved and their objectives: Seek additional information.
    • Monitor recent orders, business progress, and new investment plans.
    • Analyze market consensus and conduct technical analysis.
    • Make informed investment decisions after thorough analysis.
    What is an after-hours block trade?

    It’s a large trade of shares that occurs outside of regular trading hours, often in the form of a block deal or program trade.

    How will this trade impact Hanwha Ocean’s stock price?

    In the short term, it can increase price volatility. The long-term impact depends on the purpose of the trade and market conditions.

    How should investors react?

    It’s crucial to gather more information, monitor market conditions, and make investment decisions carefully.

  • Kakao Pay After-Hours Block Deal Analysis: ₩153.3B Transaction, What Should Investors Do?





    1. What Happened? – Kakao Pay After-Hours Block Deal

    On September 3, 2025, a substantial block deal of Kakao Pay shares, amounting to 2,954,369 shares and approximately ₩153.3 billion, occurred during after-hours trading. The primary participants in this transaction were foreign investors, with large volumes both buying and selling.

    2. Why Did This Happen? – Analyzing the Block Deal

    The after-hours block deal likely reflects portfolio adjustments by institutional or large-scale investors. The substantial involvement of foreign investors warrants a closer examination of their trading patterns. Currently, there are no identified factors directly impacting Kakao Pay’s fundamentals. The revised semi-annual report of Kakao Pay Securities has minimal impact on the company’s fundamentals, and the high net capital ratio of 949.02% demonstrates robust financial health.

    3. What’s Next? – Market Impact and Future Outlook

    While this block deal may introduce short-term volatility in Kakao Pay’s stock price, the long-term outlook remains positive. South Korea’s base interest rate remains steady at 2.50%, with the US and Europe also maintaining a hold stance, limiting interest rate-related uncertainty. Kakao Pay’s stock price has generally been on an upward trend, and the surge in trading volume in June 2025 indicates a positive market response. However, the large-scale trading patterns of foreign investors should be closely monitored as they could be a crucial indicator for future price direction.

    4. What Should Investors Do? – Investment Strategy

    • Short-term investors: Pay close attention to the opening price and intraday movements on the next trading day and be cautious of volatility. A wait-and-see approach is recommended.
    • Long-term investors: Considering Kakao Pay’s solid fundamentals, a positive long-term outlook can be maintained. Continuous monitoring of foreign investor trends and company-related news is crucial.


    Frequently Asked Questions (FAQ)

    What is an after-hours block deal?

    It refers to a large-scale stock transaction that occurs outside of regular trading hours. It often involves institutional investors and is frequently conducted as a block deal.

    How will this block deal affect Kakao Pay’s stock price?

    It may increase stock price volatility in the short term, but the long-term impact is expected to be limited, as there is no significant change in Kakao Pay’s fundamentals.

    How should investors respond?

    Short-term investors should be wary of volatility, and long-term investors are advised to continuously monitor Kakao Pay’s fundamentals and foreign investor trends.



  • SK Hynix After-Hours Trading: A Hidden Investment Opportunity? Fundamental Analysis and Future Outlook





    1. SK Hynix After-Hours Trading: What Happened?

    On September 1, 2025, a large block trade of 56,517 shares, approximately ₩14.5 billion, occurred in SK Hynix’s after-hours trading. Foreign investors were particularly active, with significant buy (₩145.7 billion) and sell (₩247.9 billion) orders, resulting in a net sell position.

    2. Fundamental Analysis: Why Did This Happen?

    SK Hynix’s performance in the first half of 2025 was very positive, driven by the rapid growth of the AI market and surging demand for HBM. Positive factors include technological leadership with HBM3E mass production and HBM4 development, recovery in the DRAM and NAND sectors, maintaining a solid market share, active R&D investment, and a stable financial structure. However, macroeconomic uncertainty and intensifying competition remain potential risk factors.

    3. Future Outlook and Investment Strategy: What Should Investors Do?

    The net selling by foreign investors in after-hours trading represents a short-term supply burden. However, considering the growth of the AI market and SK Hynix’s strong fundamentals, this could be a buying opportunity. The growth of high-value-added products centered around HBM and the recovery of the DRAM and NAND markets will support SK Hynix’s mid- to long-term growth.

    Investment Opinion: Buy

    • Strong beneficiary of the AI market
    • Solid fundamentals
    • Positive macroeconomic environment (expectations of interest rate cuts, etc.)
    • Positive interpretation of short-term events (buying opportunity)

    Risk factors: Global economic slowdown, geopolitical risks, intensifying competition, increased exchange rate volatility



    FAQ

    How will the SK Hynix after-hours trading affect the stock price?

    It may increase stock price volatility in the short term, but considering the company’s solid fundamentals, the long-term impact is expected to be limited.

    What is HBM and why is it important?

    HBM (High Bandwidth Memory) is a high-bandwidth memory chip essential for high-performance computing such as AI. SK Hynix, as a leader in the HBM market, is directly benefiting from the growth of the AI market.

    Should I invest in SK Hynix?

    This report is not intended as investment advice. Investment decisions should be made at your own discretion and responsibility. However, this report presents SK Hynix’s positive fundamentals and growth prospects.



  • Ubiquitous Holdings After-Hours Trading Deep Dive: Opportunity or Risk?





    1. What Happened? : Analysis of Ubiquitous Holdings After-Hours Trading

    Before the market opened on September 1, 2025, approximately ₩1 billion worth of after-hours trading occurred in Ubiquitous Holdings. Institutional investors bought approximately ₩980 million, while foreign investors sold approximately ₩10 million.

    2. Why Did This Happen? : Background and Fundamental Analysis

    The large purchase by institutional investors may reflect expectations for the solid performance of Ubiquitous Holdings’ network business division (e.g., equipment supply contract with LGU+). On the other hand, the selling by foreign investors may indicate concerns about the recent decline in stock price. However, Ubiquitous Holdings’ financial soundness has areas that need consideration, such as the increasing debt-to-equity ratio. The sluggish performance of the medical device business division also represents a continuing risk factor.

    3. What’s Next? : Potential Impact and Outlook

    The buying by institutional investors could have a positive impact on the stock price in the short term, but it is uncertain whether it will completely reverse the recent downward trend. While the growth potential of the 5G-related network business is positive, the sluggish performance of the medical device business, financial soundness, and uncertainties in the macroeconomic environment are important factors to consider when investing.

    4. What Should Investors Do? : Investment Strategy Recommendations

    • Short-term investors: You can consider buying, taking into account the possibility of a short-term rebound in stock price, but be wary of increased volatility.
    • Long-term investors: It is crucial to continuously monitor changes in fundamentals, such as the growth potential of the network business, the normalization of the medical device business, and improvements in financial structure, before making investment decisions. It is also essential to continuously analyze the impact of macroeconomic variables such as exchange rates, interest rates, and commodity prices.


    FAQ

    What are the main businesses of Ubiquitous Holdings?

    Ubiquitous Holdings operates network business, financial business, other businesses (industrial boards, medical devices), and holding company business.

    How will this after-hours trading affect the stock price?

    The large purchase by institutional investors may positively impact the stock price in the short term, but the mid- to long-term impact will depend on the company’s fundamentals and market conditions.

    What should investors be aware of when investing in Ubiquitous Holdings?

    Investors should consider the sluggish performance of the medical device business, financial soundness, and changes in the macroeconomic environment. Also, investments should always be made cautiously and based on one’s own judgment.



  • TigerElec After-Hours Trading Surge: Opportunity or Hidden Risk?

    1. What Happened? After-Hours Trading Analysis

    On August 29, 2025, 120,000 shares of TigerElec were traded after-hours, totaling approximately ₩2 billion. Institutional investors showed strong buying interest, while foreign investors sold a smaller amount. This represents about 1.8% of the company’s market capitalization, suggesting potential short-term price volatility.

    2. Why Did This Happen? Fundamental Analysis

    TigerElec returned to profitability in the first half of 2025, demonstrating positive momentum. The growth of its PROBE CARD segment was particularly notable, with revenue increasing by 23.1% year-over-year. However, increasing debt, exchange rate fluctuations, and customer concentration remain key risk factors.

    3. What’s Next? Investment Implications

    While institutional buying is a positive sign, the foreign investors’ selling and overall market uncertainty warrant a cautious approach. Investors should closely monitor upcoming earnings announcements, exchange rate and interest rate movements, and R&D investment expansions.

    4. Investor Action Plan

    • Positive Factors: PROBE CARD growth, return to profitability
    • Risk Factors: Increasing debt, exchange rate volatility
    • Key Watch Points: Earnings sustainability, risk management

    TigerElec presents both growth potential and inherent risks. Thorough analysis and careful consideration are crucial before making any investment decisions.

    What is TigerElec’s main business?

    TigerElec manufactures semiconductor test equipment, including PROBE CARDs and LOAD BOARDs. The PROBE CARD segment is experiencing significant growth.

    How has TigerElec performed recently?

    The company returned to profitability in the first half of 2025, with a 23.1% year-over-year increase in revenue driven by the PROBE CARD segment.

    What are the key risks to consider when investing in TigerElec?

    Increasing debt, exchange rate volatility, customer concentration, and low R&D investment are potential risk factors that warrant careful consideration.