Weekly Theme Wrap (May 18 – May 22)
5 trading days · top 10 themes — most persistent is Hydrogen (Fuel Cells, Vehicles) at 3 days (weekly avg. +8.8%). Best single day this week: May 21, +29.9%.
Average change over the period
Hydrogen (Fuel Cells, Vehicles) led the week from 2020-05-18 to 2020-05-22 and was strong on 3 days. Its best change was 9.55% on May 21, with an average change of 8.77% across SJG Sejong, Samwha Electronics and EcoSimplex.
Cybersecurity and Rare Earths & Rare Metals were strong on 2 days each, with average changes of 17.49% and 17.07%. The latter’s best change, 24.94%, came on May 22.
One-day spikes clustered on May 21, topped by Korea-Listed Chinese Companies at 29.89% through Global SM Tech. Wind followed with a change of 28.07% through Unison.
This Week’s Theme Ranking
| Theme | Days strong | Weekly avg. | Best day | Last status | Leader |
|---|---|---|---|---|---|
| Hydrogen (Fuel Cells, Vehicles) | 3d | +8.8% | 2020-05-21 (+9.6%) | running | SJG Sejong, Samwha Electronics, EcoSimplex |
| Cybersecurity | 2d | +17.5% | 2020-05-18 (+21.4%) | recurred | Korea Electronic Certification Authority, Korea Information Certificate Authority |
| Rare Earths & Rare Metals | 2d | +17.1% | 2020-05-22 (+24.9%) | recurred | Union, Union Materials |
| Semiconductors | 2d | +8.4% | 2020-05-20 (+10.7%) | running | ISC, Fine Semitech |
| Korea-Listed Chinese Companies | 1d | +29.9% | 2020-05-21 (+29.9%) | recurred | Global SM Tech |
| Wind | 1d | +28.1% | 2020-05-21 (+28.1%) | recurred | Unison |
| AI & Robotics | 1d | +19.2% | 2020-05-21 (+19.2%) | recurred | RoboRobo |
| 5G / Telecom Equipment | 1d | +17.6% | 2020-05-21 (+17.6%) | recurred | Ubiquoss |
| Bicycles / E-Bikes | 1d | +17.5% | 2020-05-21 (+17.5%) | recurred | Samchuly Bicycle |
| Solar | 1d | +10.6% | 2020-05-21 (+10.6%) | recurred | Lake Materials |
Related News by Theme
- Hydrogen (Fuel Cells, Vehicles) (2020-05-21) 文
그린 뉴딜한마디에들썩…세종공업·유니슨 장중 상한가 — 매일경제 (Korean) - Cybersecurity (2020-05-18) [이시각 상한가] 한국정보인증(▲1230) - 18일 오전 11시14분 — 이투데이 (Korean)
- Rare Earths & Rare Metals (2020-05-22) [이시각 상한가] 유니온머티리얼(▲780) - 22일 오후 14시24분 — 이투데이 (Korean)
- Semiconductors (2020-05-20) [이시각 상한가] 에프에스티(▲2780) - 20일 오후 15시 — 이투데이 (Korean)
- Korea-Listed Chinese Companies (2020-05-21) [이시각 상한가] 글로벌에스엠(▲182) - 21일 오후 12시32분 — 이투데이 (Korean)
What to Watch Next Week
Two themes carried a running tag into the week’s close: Hydrogen (Fuel Cells, Vehicles) and Semiconductors. Semiconductors posted an average change of 8.43%, led by ISC and Fine Semitech.
The rest were tagged recurred, including AI & Robotics at 19.16% and 5G / Telecom Equipment at 17.64%. Whether these one-day themes return will show in the coming sessions.
Theme heatmap
| 05-18 | 05-19 | 05-20 | 05-21 | 05-22 | |
|---|---|---|---|---|---|
| Hydrogen (Fuel Cells, Vehicles) | +9.5 | +7.2 | +9.6 | ||
| Cybersecurity | +21.4 | +13.6 | |||
| Rare Earths & Rare Metals | +9.2 | +24.9 | |||
| Semiconductors | +10.7 | +6.2 | |||
| Korea-Listed Chinese Companies | +29.9 | ||||
| Wind | +28.1 | ||||
| AI & Robotics | +19.2 | ||||
| 5G / Telecom Equipment | +17.6 | ||||
| Bicycles / E-Bikes | +17.5 | ||||
| Solar | +10.6 |