2026-08-21 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 2026-08-21).
- Screened 297 names; 21 qualified — the top ones are tabled below.
- Returning names: 소마젠(950200) (7w ago, since +37.7%), 신라젠(215600) (8w ago, since +1.3%), 에이팩트(200470) (4w ago, since +30.9%) — 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 that attention this week was highly concentrated within specific, smaller-cap biopharmaceutical names. Several stocks exhibited volume increases significantly exceeding their recent averages, suggesting targeted interest rather than broad market participation. While some large-cap names like 현대엘리베이터 also appeared in the list, the most pronounced activity was observed among companies with smaller market capitalizations, pointing toward sector-specific or thematic focus areas driving trading interest.
Reading the tape
A notable cluster of activity involves several biotech names, such as 소마젠, 신라젠, and 제넥신, which saw substantial volume spikes alongside notable price appreciation. This suggests that sector-specific catalysts or news flow may be drawing investor focus to this segment. Conversely, the inclusion of names like 앱코 and 골프존홀딩스, which show moderate volume increases alongside modest price movements, suggests that attention is not uniformly directional across all sectors.
It is important to reiterate that a volume surge reflects elevated trading attention—a measure of market interest—and does not constitute a forecast for future price direction. Such high volume can accompany both significant upward and downward price movements.
Top names by volume surge
Ranked by volume vs prior average. 21 names qualified of 297 screened — data as of 2026-08-21.
| # | Name | Volume | Move | Mkt cap | PER | PBR | ROE | Sector |
|---|---|---|---|---|---|---|---|---|
| 1 | 소마젠(950200) | 69.4× | +40.6% | — | — | — | — | — |
| 2 | 신라젠(215600) | 22.2× | +3.1% | 3,020억 | — | 2.7 | — | — |
| 3 | 제넥신(095700) | 18.1× | +14.5% | 1,193억 | — | 0.5 | — | — |
| 4 | 네오이뮨텍(950220) | 17.1× | +104.0% | — | — | — | — | — |
| 5 | 아난티(025980) | 7.9× | +29.1% | 3,843억 | — | 0.5 | — | — |
| 6 | 에스티팜(237690) | 6.6× | +1.2% | 2.2조 | 39.3 | 3.7 | — | — |
| 7 | 핑거(163730) | 3.9× | +7.5% | 1,220억 | 317.2 | 2.0 | — | — |
| 8 | 골프존홀딩스(121440) | 3.3× | +13.0% | 3,076억 | 11.8 | 0.4 | — | — |
| 9 | 에이팩트(200470) | 3.1× | +20.2% | 2,571억 | 49.4 | 3.7 | — | — |
| 10 | 아이진(185490) | 2.5× | +15.4% | 871억 | — | 1.5 | — | — |
| 11 | 앱코(129890) | 2.3× | +6.7% | 442억 | 6.9 | 0.7 | — | — |
| 12 | 현대엘리베이터(017800) | 2.2× | -1.7% | 2.8조 | 10.0 | 1.9 | — | — |
Related
- All-time track record: /track-record/all-time/
As of 2026-08-21 (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)