08/25 Korea Market Morning Briefing — KOSPI Plunges -3.12% on 3.67T KRW Foreign Sell-Off, KOSDAQ Rebounds +1.42% on Foreign Net Buying
Market Trends & Investor Flows — KOSPI Drop vs KOSDAQ Rebound
KOSPI closed at 6,696.96, down -3.12% from 6,912.95 (KRX closing price basis). This drop completely reversed the 3-session rebound from August 19 (6,471) to August 21 (6,912). Conversely, KOSDAQ climbed +1.42% from 801.94 to 813.33, highlighting a stark divergence between both markets. (Data As of: 2026-08-24, Source: KRX)
In terms of investor flows, foreign investors sold -3.67 trillion KRW and institutions (including pension funds) sold -1.29 trillion KRW on KOSPI, while retail investors bought +3.32 trillion KRW and other corporations bought +1.64 trillion KRW. This marks the second consecutive session of foreign net selling following August 21 (-176.0 billion KRW), halting the buying momentum seen through August 20 (+1.71 trillion KRW).
The KOSDAQ market moved in the opposite direction. Foreign investors turned to net buyers with +241.6 billion KRW (following -283.7 billion KRW net selling on August 21), while retail investors net sold -260.4 billion KRW. Institutions recorded modest net purchases (+24.9 billion KRW), suggesting capital rotation from KOSPI into KOSDAQ.
| Market / Indicator | 8/24 Close | 8/21 Close | Change | Foreign (Trillion KRW) | Inst. (Trillion KRW) | Retail (Trillion KRW) |
|---|---|---|---|---|---|---|
| KOSPI | 6,696.96 | 6,912.95 | -3.12% | -3.67 | -1.29 | +3.32 |
| KOSDAQ | 813.33 | 801.94 | +1.42% | +0.24 | +0.03 | -0.26 |
Overnight Global Developments & Derivatives / Flow Points
Weakness in US tech stocks and market reactions to conglomerate shareholder return plans served as key variables.
Key Corporate Filings (DART) & Credit Rating Actions
Summary of DART electronic disclosure filings and credit rating actions from Korea Ratings.
| Target / Company | Type | Details | Source & Remarks |
|---|---|---|---|
| Nexa Dynamics (351320) | Material Fact Report | Combined capital raising via Rights Offering & Convertible Bond (CB) issuance | DART (Receipt Nos. 20260824000324, 20260824000329) |
| Seojin System (178320) | Material Fact Report | Issuance of Convertible Bonds and Hybrid Capital Securities reported | DART Disclosure |
| Kakao (035720) | Material Fact Report | Amendment report filed regarding corporate merger decision | DART Disclosure |
| Lotte Corp (004990) | Credit Rating Review | Corporate Bonds A+ (Stable), Commercial Paper A2+ (Stable) ratings maintained | Korea Ratings (8/24 assessment, DB aggregate) |
Macro Indicators, Today's Calendar & Reference Sources
| Indicator / Key Event | Value / Schedule | Status & Details |
|---|---|---|
| Bank of Korea Base Rate | 2.75% | Frozen (Bank of Korea ECOS) |
| USD/KRW Basic Exchange Rate | 1,383.6 KRW | Down from 1,415.2 KRW on 8/18 (KRW Strength) (ECOS) |
| US CB Consumer Confidence & New Home Sales | 8/25 23:00 (KST) | Scheduled for release tonight |
| US Q2 GDP Preliminary & PCE Price Index | 8/26 Night (KST) | Scheduled for release tomorrow night |
| Bank of Korea Monetary Policy Board | 8/27 10:00 (KST) | Rate decision meeting scheduled |
- KRX Korea Exchange — Stock index and investor net trading volume statistics
- DART Electronic Disclosure System — Material fact reports for Nexa Dynamics, Seojin System, Kakao
- Bank of Korea ECOS — Base interest rate and USD/KRW exchange rates
- US Semiconductor Stocks Plunge... Micron -5.8%, Hynix ADR -4.9% — Munhwa Ilbo (Naver Finance)
- Foreign Investors Dump Samsung Group Stocks... Reasons for Disappointment in 100T+ Shareholder Return — Maeil Business (Naver Finance)
- Samsung Unveils 110T vs Hynix Retires 40T... Diverging Return Strategies — Newsis (Naver Finance)
- Consumer Sentiment in August Drops for First Time in Four Months Due to Stock Market Decline — Yonhap News
- Domestic Corporate Business Outlook Turns Positive for First Time in Six Months... FX Stability & Chuseok Demand — Yonhap News