2026-07-03 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 2026-07-03).
- Screened 339 names; 23 qualified — the top ones are tabled below.
- 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 a notable degree of selective attention across the KOSPI universe this week. The activity was not uniformly distributed, with several names showing extreme relative volume increases, suggesting concentrated interest in specific stocks rather than broad sector rotation. The observed price action accompanying these surges was highly divergent, ranging from significant gains to substantial declines, pointing to distinct, stock-specific catalysts driving the trading interest.
Reading the tape
Several names captured significant investor focus, particularly those showing high relative volume increases. For instance, 위메이드 and 한국콜마 both exhibited substantial percentage gains alongside high volume multiples, drawing attention to their respective market narratives. Conversely, other highly-traded names like 한화솔루션 and 삼성E&A experienced notable price depreciation despite increased trading volume, illustrating the lack of directional consensus accompanying the heightened interest. The presence of both large-cap names with high market capitalization (e.g., 삼성E&A, 주성엔지니어링) and smaller names in the surge list suggests that attention was spread across different market segments this period.
Volume surges are purely an observational measure of attention concentration and do not constitute a prediction of future price movement. The divergence between high volume and negative price action, as seen with 원익IPS, underscores that elevated trading interest can accompany any price trajectory.

Top names by volume surge
Ranked by volume vs prior average. 23 names qualified of 339 screened — data as of 2026-07-03.
| # | Name | Volume | Move | Mkt cap | PER | PBR | ROE | Sector |
|---|---|---|---|---|---|---|---|---|
| 1 | 소마젠(950200) | 28.1× | +8.1% | — | — | — | — | — |
| 2 | 위메이드(112040) | 8.0× | +28.5% | 6,511억 | — | 1.6 | — | — |
| 3 | 한국콜마(161890) | 3.0× | +29.8% | 2.8조 | 22.2 | 3.0 | — | — |
| 4 | 주성엔지니어링(036930) | 2.9× | +6.9% | 9.0조 | 246.6 | 14.9 | — | — |
| 5 | 이수페타시스(007660) | 2.5× | -0.9% | 8.1조 | 48.3 | 10.7 | — | — |
| 6 | 한화솔루션(009830) | 2.2× | -11.4% | 5.6조 | — | 0.7 | — | — |
| 7 | HD현대마린엔진(071970) | 2.1× | +0.5% | 2.2조 | 13.5 | 4.5 | — | — |
| 8 | 삼성E&A(028050) | 2.1× | -9.2% | 9.4조 | 15.3 | 2.0 | — | — |
| 9 | 원익IPS(240810) | 1.9× | -22.9% | 6.5조 | 77.1 | 6.7 | — | — |
| 10 | 산일전기(062040) | 1.9× | -0.9% | 6.8조 | 45.1 | 11.5 | — | — |
| 11 | 솔브레인(357780) | 1.8× | -20.3% | 2.5조 | 31.4 | 2.3 | — | — |
| 12 | 동서(026960) | 1.8× | +5.4% | 2.6조 | 17.7 | 1.5 | — | — |
As of 2026-07-03 (KST).
Disclaimer: OneQAZ figures are paper-trading research, not investment advice. Past simulated performance does not predict future real-money results.
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