[July 27]Korea Stock Market Wrap
This Korea stock market wrap reviews five important signals from the July 27, 2026 rebound. Korean equities recovered after the previous session’s sharp selloff, but the rally was far more interesting than a simple technical bounce. Semiconductors led the advance, while buying quickly expanded into AI platforms, data-center infrastructure, robotics, biotech, cosmetics, and selected consumer stocks.
The day’s message was clear: investors returned to growth stocks, but they preferred companies supported by earnings, strategic partnerships, capital investment, or identifiable business catalysts. In other words, optimism came back—but it brought a checklist.
1. KOSPI and KOSDAQ Rebounded Together
The KOSPI closed at 6,755.75, while the KOSDAQ advanced more strongly to 764.86. The larger KOSDAQ gain showed that risk appetite was not limited to heavyweight stocks. Investors also returned to smaller growth companies linked to AI, robots, biotech, and semiconductor equipment.
Still, one positive session does not erase the volatility seen last week. Readers can compare the change in market tone with our July 24 Korea stock market wrap, when both major indices fell more than 5%.
2. Semiconductors Led the Recovery
Semiconductors were the first engine of the rebound. SK hynix gained 3.24% as investors looked ahead to its second-quarter earnings and continued strength in AI-memory demand. Samsung Electronics rose 1.80%, supported by expectations surrounding advanced HBM and its 2-nanometer GAA foundry ecosystem.
- Gaonchips +27.25% — expectations for Samsung’s 2nm design ecosystem
- CPCSystem +29.87% — exposure to CXMT-related semiconductor equipment demand
- Mirae Industries +22.28% — renewed attention on its CXMT testing-equipment history
- Haesung DS +6.87% — expectations for expanded DDR5 substrate supply
3. NAVER Turned AI Infrastructure Into a Market Theme
NAVER surged 8.43% as its relationship with NVIDIA strengthened the market’s confidence in Korea’s AI infrastructure strategy. The rally spread to companies connected to GPU supply, AI storage, cloud infrastructure, and enterprise software.
OBZEN and iCRAFT both reached the daily limit, while NHN gained 10.16%. Nota advanced 9.70% after demonstrating technology that reduced the GPU requirement for an AI model from eight H100 units to two.
For broader background, NAVER’s official release explains how NAVER Cloud and NVIDIA are working toward a full-stack global AI factory spanning infrastructure, models, and services. Read the official NAVER–NVIDIA AI factory announcement .
4. Robotics Added a Second Growth Engine
The AI rally did not stop at software. KNR Systems jumped 29.96% after announcing a high-strength humanoid robot hand, while Ajinextek, Elensys, Hyundai Movex, and TXR Robotics posted double-digit gains.
This matters because Korea’s robotics theme is broadening from speculative humanoid headlines into components, motion control, automated logistics, robot hands, manufacturing systems, and physical-AI infrastructure. The market is beginning to ask not only who will build the robot, but also who will supply its joints, sensors, hands, factories, and training data.
5. Biotech, Beauty, and Shareholder Returns Joined the Rally
Peptron rose 13.77% on plans to expand its second Osong plant, while i-SENS gained 9.17% after reporting record quarterly sales and improved profitability from its continuous glucose-monitoring products.
K-beauty exporters also attracted buying as companies prepared to pursue opportunities in Latin America. Pumtech Korea gained 10.45%, Silicon2 rose 8.94%, and several cosmetics manufacturers advanced more than 7%.
Woori Financial climbed 7.29% after announcing additional share buybacks and cancellations. In contrast, ST Pharm fell 14.40% despite strong earnings, showing that even good numbers can trigger profit-taking after an extended rally.
