2026-09-23 Korea Volume Surge — Kosho
What this is
- A weekly volume-surge screen: traded names whose recent trading volume ran well above their own prior average (data as of 2026-09-23).
- Screened 267 names; 130 qualified — the top ones are tabled below.
- Returning names: 네오셈(253590) (3w ago, since +21.1%), 가온칩스(399720) (2w ago, since +13.7%) — flagged vs prior appearances.
- Surging volume signals attention, not direction — it accompanies both rallies and selloffs. This is an observational screen, not investment advice.
What drew volume
The volume surge list indicates significant, concentrated attention across several technology and semiconductor-related names. Several stocks exhibiting high trading activity are clustered within the semiconductor equipment, materials, and IT service sectors. This suggests that market focus this week was heavily weighted toward themes related to the domestic technology supply chain, drawing considerable capital into specific names regardless of their immediate price action.
Reading the tape
A notable pattern among the high-volume names is the presence of multiple components of the semiconductor ecosystem. For instance, names like 카페24, 네오셈, and 가온칩스 all point to activity within the broader IT/semiconductor service and design space. Conversely, the presence of 오름테라퓨틱, which saw a substantial price decline alongside high volume, highlights that intense trading volume does not correlate with directional conviction; it simply reflects high levels of market engagement.
Volume surge, by definition, signals heightened market attention to a specific name or theme. This observation reflects where capital was actively flowing this week, but it does not constitute a predictive indicator of future price movement or momentum.
Top names by volume surge
Ranked by volume vs prior average. 130 names qualified of 267 screened — data as of 2026-09-23.
| # | Name | Volume | Move | Mkt cap | PER | PBR | ROE | Sector |
|---|---|---|---|---|---|---|---|---|
| 1 | 카페24(042000) | 19.2× | +14.6% | 4,359억 | 11.2 | 1.6 | — | — |
| 2 | 오름테라퓨틱(475830) | 14.6× | -52.0% | 5,438억 | — | 4.1 | — | — |
| 3 | 와이씨(232140) | 14.5× | +19.9% | 1.2조 | 59.6 | 3.2 | — | — |
| 4 | 우리기술투자(041190) | 9.2× | +7.2% | 4,836억 | 4.3 | 0.6 | — | — |
| 5 | 대한전선(001440) | 9.0× | +9.0% | 6.1조 | 68.3 | 3.6 | — | — |
| 6 | 네오셈(253590) | 8.5× | +19.0% | 6,001억 | 108.6 | 4.9 | — | — |
| 7 | 루닛(328130) | 7.8× | +18.6% | 7,304억 | — | 4.5 | — | — |
| 8 | 가온칩스(399720) | 6.7× | +13.7% | 5,621억 | — | 10.1 | — | — |
| 9 | 하나마이크론(067310) | 6.5× | +32.2% | 3.1조 | 72.5 | 7.7 | — | — |
| 10 | 에프에스티(036810) | 5.9× | +22.8% | 6,755억 | — | 2.6 | — | — |
| 11 | 동진쎄미켐(005290) | 5.9× | +14.7% | 2.4조 | 24.3 | 2.2 | — | — |
| 12 | 리노공업(058470) | 5.9× | +11.7% | 5.7조 | 37.1 | 7.7 | — | — |
Related
- All-time track record: /track-record/all-time/
As of 2026-09-23 (KST).
Disclaimer: OneQAZ figures are paper-trading research, not investment advice. Past simulated performance does not predict future real-money results.
Three ways to see OneQAZ — this post is the synthesis layer:
- Live — dashboard stream (the system’s screen, 24/7)
- Synthesis — blog.oneqaz.com (daily reads · journals · track record)
- Query — OneQAZ MCP (connect an AI to live data)