Illustrative sample report, published to verify the Reports layout. The themes and names below are representative of recurring Seoul-market leadership, not live market data for the date shown.

Korean equities traded with a clear thematic tilt on Thursday, with turnover concentrating in three groups. Below are the day's hottest themes and the three leaders carrying each one.

1. AI Semiconductors & HBM

The memory complex stayed front and center as high-bandwidth memory demand and AI server build-outs continued to anchor sentiment.

  • SK hynix (000660) — Kept the leadership role on sustained HBM order optimism tied to next-generation AI accelerators.
  • Samsung Electronics (005930) — Drew buying on expectations that its HBM qualification progress is narrowing the gap with rivals.
  • Hanmi Semiconductor (042700) — Tracked the group as a key supplier of the thermal-compression bonders used in HBM packaging.

2. Nuclear & Power Grid

Energy names extended their run on expectations for new reactor orders and grid-investment cycles at home and abroad.

  • Doosan Enerbility (034020) — Stayed in focus as the core beneficiary of large-scale reactor and SMR project pipelines.
  • KEPCO E&C (052690) — Moved with the theme on its engineering role across nuclear plant design work.
  • LS ELECTRIC (010120) — Caught a bid on grid-equipment and transformer demand tied to power-infrastructure spending.

3. Defense & Aerospace

Defense shares held firm on a steady stream of export-order expectations and elevated global security spending.

  • Hanwha Aerospace (012450) — Led the group on optimism around artillery and engine export momentum.
  • Hyundai Rotem (064350) — Gained on its armored-vehicle and rolling-stock backlog.
  • LIG Nex1 (079550) — Firmed on guided-missile and precision-systems order expectations.

Bottom line

Leadership stayed narrow and thematic: AI memory set the tone, while nuclear and defense provided the rotation. Watch whether turnover stays concentrated in these three groups or broadens into the wider index.