Korea Market Insights

Market date: August 13, 2026 · Based on the KRX regular-session close Key question: Foreign investors bought about KRW 2.12 trillion of KOSPI cash equities and the index jumped 3.56%. Did that mean the rally finally became broad-based? Key answer: Not yet. Foreign-buying concentration in Samsung Electronics common shares and SK hynix fell sharply from the previous session, but KOSPI still had more declining stocks than advancing stocks. The money became less concentrated by amount; market participation remained narrow. KOSPI 6,813.34 +3.56% KOSPI 200 1,071.24 +4.06% KOSDAQ 861.37 +0.29% Foreign KOSPI Net Buying About KRW 2.12tn Cash equities SK hynix Foreign Flow +KRW 1.0551tn Stock +5.92% KOSPI Breadth 333 up / 531 down 34 unchanged Takeaway: KOSPI rose strongly while declining stocks outnumbered advancing stocks. August 13 was strong...

Analysis date: August 13, 2026  |  HJ Shipbuilding & Construction Co., Ltd. (KRX: 097230) HJ Shipbuilding & Construction Co., Ltd. (HJSC) reported a sharp improvement in H1 2026 earnings, with consolidated operating profit rising from KRW 10.8 billion a year earlier to KRW 89.4 billion. But the more important story is where that profit came from. Shipbuilding generated KRW 678.6 billion of revenue—just over half of consolidated sales—but KRW 81.7 billion of operating profit. Based on those company-reported segment figures, the H1 shipbuilding operating margin was approximately 12.0% , while shipbuilding operating profit was equivalent to roughly 91.4% of consolidated operating profit . Construction, despite contributing nearly 46% of revenue, produced a calculated operating margin of only about 1.3% . The central question is therefore not simply why HJSC's operating profit increased more than eightfold. It is whether the company's shipbuilding busi...

Verification cutoff: August 13, 2026, 08:07 KST · Focus: August 13 KRX pre-market setup The setup for Korean stocks on August 13, 2026 is more supportive, but the key question is not whether the KOSPI can post another large percentage gain. It is whether the buying underneath the index becomes less dependent on Samsung Electronics Co., Ltd. (KRX: 005930) and SK hynix Inc. (KRX: 000660) . July U.S. CPI avoided a new upside inflation surprise and U.S. semiconductor stocks substantially outperformed the broader market. Yet Korea enters the session with an important breadth problem: on August 12, about 82.1% of reported foreign KOSPI net buying was concentrated in Samsung Electronics and SK hynix, while more KOSPI stocks fell than rose. Key Takeaway The overnight backdrop improved, but broader Korean participation is still unproven. The strongest confirmation would be foreign cash buying spreading beyond the two semiconductor leaders, improving advance-decline breadth, wider...

Date: August 12, 2026 Market covered: August 12 KRX regular session Data cutoff: August 12, 2026, 8:30 p.m. KST Chronology: The July U.S. CPI release was scheduled for 9:30 p.m. KST, after this article's cutoff. Its actual result is therefore not included in this closing-market analysis. Core Question Why did the KOSPI surge 3.68% even though more KOSPI stocks fell than rose, while foreign investors bought Korean cash equities heavily but sold KOSPI 200 futures? Executive Summary The KOSPI rally was powerful, but it was not broad. The index rose 3.68% even as 477 KOSPI stocks declined and only 380 advanced. Samsung Electronics and SK hynix were central to the move, rising 6.68% and 5.54%, respectively. Foreign investors bought a net KRW 2.8429 trillion of KOSPI cash equities, with Samsung Electronics and SK hynix accounting for about 82.1% of that headline total. At the same time, foreigners were net sellers of ...