May 12: 7 Strong Themes — Vaccines, Diagnostics & Epidemic Control, COVID (Diagnostics, Treatments, Vaccines)
7 strong themes — 7 recurred. Top: Vaccines, Diagnostics & Epidemic Control +12.8%.
Average change by strong theme
Theme leaders · recent trend
| Theme | Leader | Change | Trend |
|---|---|---|---|
| Vaccines, Diagnostics & Epidemic Control | Aprogen Biologics | +30.00% | |
| COVID (Diagnostics, Treatments, Vaccines) | Access Bio | +29.89% | |
| Plastic Alternatives & Biodegradables | Dae-il | +12.04% | |
| Shipping | Heung-a Shipping | +4.12% | |
| Oil Refining | S-Oil | +3.07% | |
| Metals (Non-Ferrous) | Daechang | +2.96% | |
| LPG (Liquefied Petroleum Gas) | HeunguOil | +0.64% |
On May 12, Vaccines, Diagnostics & Epidemic Control led the session with an average change of 12.81%. All 10 of its stocks closed higher.
Aprogen Biologics led with a 30.0% gain, and Access Bio rose 29.89%. COVID (Diagnostics, Treatments, Vaccines) followed at an average change of 12.6%.
Plastic Alternatives & Biodegradables averaged 5.26%, led by Dae-il at 12.04%. Shipping, Oil Refining, Metals (Non-Ferrous) and LPG (Liquefied Petroleum Gas) posted smaller gains.
Today’s Strong Themes at a Glance
| # | Theme | Status | Avg. change | Up/Total | Leader |
|---|---|---|---|---|---|
| 1 | Vaccines, Diagnostics & Epidemic Control | recurred after 4 days | +12.8% | 10/10 | Aprogen Biologics |
| 2 | COVID (Diagnostics, Treatments, Vaccines) | recurred after 18 days | +12.6% | 10/10 | Access Bio |
| 3 | Plastic Alternatives & Biodegradables | recurred after 14 days | +5.3% | 3/3 | Dae-il |
| 4 | Shipping | recurred after 22 days | +4.8% | 2/2 | Heung-a Shipping |
| 5 | Oil Refining | recurred after 13 days | +3.1% | 1/1 | S-Oil |
| 6 | Metals (Non-Ferrous) | recurred after 14 days | +1.7% | 4/4 | Daechang |
| 7 | LPG (Liquefied Petroleum Gas) | recurred after 13 days | +1.2% | 4/4 | HeunguOil |
Theme by Theme
1. Vaccines, Diagnostics & Epidemic Control (recurred after 4 days)
- Episode: started 2026-05-12, day 1
| Stock | Change | Close | Leader |
|---|---|---|---|
Aprogen Biologics 003060 | +30.0% | 3,770 | ★ |
Access Bio 950130 | +29.9% | 4,020 | |
CTC Bio 060590 | +17.8% | 4,200 | |
Sugentech 253840 | +13.2% | 6,850 | |
GC 005250 | +8.8% | 14,320 | |
LabGenomics 084650 | +7.8% | 1,415 | |
Hanmi Pharm 128940 | +7.3% | 454,500 | |
MOA Life Plus 142760 | +5.7% | 746 | |
Osang Healthcare 036220 | +4.0% | 9,250 | |
Inventage Lab 389470 | +3.6% | 57,600 |
2. COVID (Diagnostics, Treatments, Vaccines) (recurred after 18 days)
- Episode: started 2026-05-12, day 1
| Stock | Change | Close | Leader |
|---|---|---|---|
Access Bio 950130 | +29.9% | 4,020 | ★ |
GC Medical Science 142280 | +18.3% | 4,755 | |
CTC Bio 060590 | +17.8% | 4,200 | |
Sugentech 253840 | +13.2% | 6,850 | |
ZGOO Holdings 221800 | +12.5% | 17,260 | |
LigaChem Biosciences 141080 | +10.5% | 203,500 | |
LabGenomics 084650 | +7.8% | 1,415 | |
Hyundai Bioscience 048410 | +6.6% | 13,140 | |
NGeneBio 354200 | +5.4% | 1,235 | |
Osang Healthcare 036220 | +4.0% | 9,250 |
3. Plastic Alternatives & Biodegradables (recurred after 14 days)
- Episode: started 2026-05-12, day 1
| Stock | Change | Close | Leader |
|---|---|---|---|
Dae-il 092200 | +12.0% | 8,750 | ★ |
Serim B&G 340440 | +2.6% | 1,818 | |
Ecoplastic 038110 | +1.1% | 3,235 |
4. Shipping (recurred after 22 days)
- Episode: started 2026-05-12, day 1
Related news
- [장중수급포착] 흥아해운, 외국인 6일 연속 순매수행진… 주가 +4.12% — 뉴스핌 (Korean)
5. Oil Refining (recurred after 13 days)
- Episode: started 2026-05-12, day 1
| Stock | Change | Close | Leader |
|---|---|---|---|
S-Oil 010950 | +3.1% | 114,300 | ★ |
Related news
- [리포트 브리핑]S-Oil, ‘정유 산업 호황이 지속될 전망’ 목표가 150,000원 - NH투자증권 — 뉴스핌 (Korean)
- [모닝 리포트] “S-Oil, 연 2조 영업이익 시대…정유 산업 호황·배당 확대 주목” — 뉴스핌 (Korean)
6. Metals (Non-Ferrous) (recurred after 14 days)
- Episode: started 2026-05-12, day 3
| Stock | Change | Close | Leader |
|---|---|---|---|
Daechang 012800 | +3.0% | 1,740 | ★ |
Leeku Industrial 025820 | +2.6% | 5,940 | |
Kukil Metal 060480 | +0.9% | 1,813 | |
Cenit 037760 | +0.4% | 2,345 |
7. LPG (Liquefied Petroleum Gas) (recurred after 13 days)
- Episode: started 2026-05-12, day 1
| Stock | Change | Close | Leader |
|---|---|---|---|
S-Oil 010950 | +3.1% | 114,300 | |
E1 017940 | +1.0% | 100,900 | |
HeunguOil 024060 | +0.6% | 15,620 | ★ |
Joong Ang Enervis 000440 | +0.1% | 19,440 |
Closing Thoughts
Every theme on the list was a recurrence, returning after gaps of 4 to 22 days. Each is on a streak of 1, so the next session will show whether any of them extends.
In Shipping, a headline noted 6 straight days of foreign net buying in Heung-a Shipping. Two news reports on S-Oil pointed to a continued refining boom.