Top 10 gainers — October 1, 2026
KOSPI & KOSDAQ, ranked by daily change at the close
| # | Stock | Close | Change | Value traded |
|---|---|---|---|---|
| 1 | 브릴스KOSDAQ Brills surges 73.85% to ₩62,100 on semiconductor sector rally. | ₩30,450 | +56.1% | ₩695.8bn |
| 2 | WoniltniKOSDAQ 원일티엔아이 | ₩10,850 | +29.9% | ₩1.9bn |
| 3 | Derkwoo ElectronicsKOSDAQ 덕우전자 | ₩4,410 | +29.9% | ₩2.3bn |
| 4 | WinpacKOSDAQ 윈팩 Winpac jumps as AI-driven demand boosts interest in OSAT and system semiconductor stocks. | ₩3,825 | +26.0% | ₩36.9bn |
| 5 | RznomicsKOSDAQ 알지노믹스 Rznomics rallies on renewed valuation of its immuno-oncology and bispecific antibody platforms. | ₩29,650 | +23.3% | ₩23.9bn |
| 6 | G2GBIOKOSDAQ 지투지바이오 G2G Bio surges as its long-acting obesity drug technology draws interest from global big pharma. | ₩43,500 | +23.1% | ₩27.6bn |
| 7 | Semi Total SolutionKOSDAQ 세미티에스 Semiconductor equipment makers rally on surging demand for HBM and CXL technologies. | ₩3,110 | +22.9% | ₩14.1bn |
| 8 | LK SamyangKOSDAQ LK삼양 LK Samyang jumps over 20% on AI component supply chain momentum and aerospace prospects. | ₩4,260 | +22.8% | ₩11.9bn |
| 9 | Daehan SteelKOSPI 대한제강 Daehan Steel climbs over 20% on expectations of a steel industry rebound under a potential Trump presidency. | ₩9,490 | +21.8% | ₩28.1bn |
| 10 | AbclonKOSDAQ 앱클론 AbClon rises as investor interest in bispecific antibodies and immuno-oncology fuels biotech sector gains. | ₩26,900 | +20.4% | ₩14.0bn |
Click a stock for its current price and chart. This page is the archived record for October 1, 2026.