Weekly Theme Wrap (Oct 6 – Oct 8)
3 trading days · top 10 themes — most persistent is Battery at 2 days (weekly avg. +13.6%). Best single day this week: Oct 7, +26.2%.
Average change over the period
Ten themes stood out from Oct 6 to Oct 8, and nine of them were strong on 2 days. Battery led with an average change of 13.57% and a best day of 15.67% on Oct 8.
Chip names were busy too. Semiconductor Equipment averaged 9.19%, while Semiconductor Materials & Components averaged 8.2% and HBM (High Bandwidth Memory) averaged 5.09%.
The single biggest move came on Oct 7 in Seoul Express Bus Terminal Redevelopment, up 26.16% on its one strong day. Dongyang Express was its only leader.
This Week’s Theme Ranking
| Theme | Days strong | Weekly avg. | Best day | Last status | Leader |
|---|---|---|---|---|---|
| Battery | 2d | +13.6% | 2026-10-08 (+15.7%) | recurred | CK Solution, Yujin Technology |
| EV | 2d | +11.9% | 2026-10-08 (+12.7%) | recurred | Nuin Tek, Higen RNM |
| Semiconductor Equipment | 2d | +9.2% | 2026-10-08 (+9.7%) | recurred | The Codi, Jusung Engineering |
| Semiconductor Materials & Components | 2d | +8.2% | 2026-10-08 (+8.3%) | recurred | HLB innoVation, Welkeeps Hitech |
| System Semiconductors | 2d | +7.0% | 2026-10-06 (+8.9%) | recurred | Doosan Tesna, Imagis |
| Energy Storage (ESS) | 2d | +6.4% | 2026-10-06 (+6.7%) | recurred | SM Bexel, Enchem |
| Semiconductor Substrates (FC-BGA, MLB) | 2d | +6.4% | 2026-10-06 (+7.6%) | recurred | Neotechnicalsystem, Dawon Nexview |
| HBM (High Bandwidth Memory) | 2d | +5.1% | 2026-10-06 (+5.9%) | recurred | Kukjeon, Kctech |
| Battery (Cell Makers) | 2d | +3.5% | 2026-10-06 (+5.5%) | recurred | LG Energy Solution, Samsung SDI |
| Seoul Express Bus Terminal Redevelopment | 1d | +26.2% | 2026-10-07 (+26.2%) | recurred | Dongyang Express |
Related News by Theme
- Battery (2026-10-08) 유진테크놀로지·형지I&C 30% 급등…HLB 계열도 강세 — 광주매일신문 (Korean)
- EV (2026-10-08) 뉴인텍, 유럽 전기차 훈풍에 커패시터 수주↑…“추가 증설도 검토” — 파이낸셜뉴스 (Korean)
- Semiconductor Equipment (2026-10-08) [ET특징주] 더코디, 330억 규모 CB 발행 철회… 주가 12% 급락 — 전자신문 (Korean)
What to Watch Next Week
Every theme this week was tagged as a recurrence, so the pattern to track is whether that strength repeats. Energy Storage (ESS) averaged 6.44% and Battery (Cell Makers) averaged 3.5%.
EV averaged 11.88%, led by Nuin Tek and Higen RNM. An Oct 7 headline linked Nuin Tek’s capacitor orders to European EV demand.
Theme heatmap
| 10-06 | 10-07 | 10-08 | |
|---|---|---|---|
| Battery | +11.5 | +15.7 | |
| EV | +11.1 | +12.7 | |
| Semiconductor Equipment | +8.7 | +9.7 | |
| Semiconductor Materials & Components | +8.1 | +8.3 | |
| System Semiconductors | +8.9 | +5.2 | |
| Energy Storage (ESS) | +6.7 | +6.2 | |
| Semiconductor Substrates (FC-BGA, MLB) | +7.6 | +5.2 | |
| HBM (High Bandwidth Memory) | +5.9 | +4.3 | |
| Battery (Cell Makers) | +5.5 | +1.5 | |
| Seoul Express Bus Terminal Redevelopment | +26.2 |