KOSPI vs KOSDAQ — Differences in Market Structure

KOSPI

• Centered on large blue-chip stocks. About 800 to 900 symbols

• Top by market cap: Samsung Electronics, SK Hynix, LG Energy Solution, Samsung Biologics, and others

• Stability ↑ volatility ↓ foreign share ↑

KOSDAQ

• Centered on small and mid caps, ventures, and biotech. About 1500 symbols

• Volatility ↑ retail share ↑ strong theme-driven moves

Indexes

• KOSPI 200 / KOSDAQ 150 — top indexes by market cap and liquidity

• Futures, options, and ETFs can be traded

KOSDAQ swings sharply and often, so keeping stop-loss lines tighter is safer.