korean-market-analysis - SKILL.md Agent Skill

name: korean-market-analysis description: Korean stock market specialist covering KOSPI, KOSDAQ, chaebols, Korean semiconductor supply chain, and cross-market correlations with US markets. Analyzes Korean-specific patterns like chaebol discount, won/dollar impact, foreign investor flows, and KOSDAQ growth dynamics. Triggers on keywords like Korean market, KOSPI, KOSDAQ, 한국 시장, 코스피, 코스닥, Korean stocks, chaebol, 재벌, Samsung supply chain.

Korean Market Analysis

Specialist analysis for the Korean stock market covering KOSPI blue chips, KOSDAQ growth stocks, chaebol dynamics, and cross-market correlations with US equities.

When to Use

When user asks about Korean market conditions
When analyzing Korean stocks that may be affected by US market moves
When evaluating Samsung supply chain or Korean semiconductor sector
When assessing KOSPI/KOSDAQ divergence

Prerequisites

bin/stock-cli must be executable (uses uv-managed environment)
No API keys required (PyKRX for Korean data)

Korean Market Structure

Key Indices

KOSPI: Large-cap, blue-chip index (~800 stocks, dominated by chaebols)
KOSDAQ: Growth/tech index (~1,600 stocks, higher volatility)

Chaebol Dominance

Top 5 chaebols by KOSPI weight (approximate):

Samsung Group: ~25% (005930 Samsung Electronics, 006400 Samsung SDI, 028260 Samsung C&T)
SK Group: ~10% (000660 SK Hynix, 034730 SK Inc.)
Hyundai Motor Group: ~8% (005380 Hyundai Motor, 012330 Hyundai Mobis)
LG Group: ~5% (051910 LG Chem, 066570 LG Electronics)
NAVER/Kakao: ~5% (035420 NAVER, 035720 Kakao)

Cross-Market Correlations

US Tech → Korean Semis:

When NVDA/AMD/INTC move, Samsung (005930) and SK Hynix (000660) follow with ~1-day lag
Correlation is strongest during earnings season
HBM (High Bandwidth Memory) narrative directly links SK Hynix to AI capex

US Rates → Korean Won:

Fed hawkish → USD/KRW rises → pressure on KOSPI (foreign selling)
Export-heavy companies (Samsung, Hyundai) benefit from weak won operationally but face valuation headwinds

China Recovery → Korean Industrials:

Chinese demand recovery → KOSPI materials/industrials rally
Key proxies: POSCO (005490), LG Chem (051910), Hyundai Motor (005380)

Workflow

All data access goes through bin/stock-cli via Bash.

1. Gather Korean Market Data

Core blue chips:

bin/stock-cli price 005930 --market KR --days 30   # 삼성전자
bin/stock-cli price 000660 --market KR --days 30   # SK하이닉스
bin/stock-cli price 035420 --market KR --days 30   # NAVER
bin/stock-cli price 051910 --market KR --days 30   # LG화학
bin/stock-cli price 006400 --market KR --days 30   # 삼성SDI
bin/stock-cli price 005380 --market KR --days 30   # 현대자동차
bin/stock-cli price 012330 --market KR --days 30   # 현대모비스
bin/stock-cli price 055550 --market KR --days 30   # 신한지주
bin/stock-cli price 005490 --market KR --days 30   # POSCO홀딩스
bin/stock-cli price 035720 --market KR --days 30   # 카카오

KOSDAQ growth leaders:

bin/stock-cli price 247540 --market KR --days 30   # 에코프로비엠
bin/stock-cli price 086520 --market KR --days 30   # 에코프로
bin/stock-cli price 403870 --market KR --days 30   # HPSP
bin/stock-cli price 196170 --market KR --days 30   # 알테오젠

2. Fetch US Reference Points

bin/stock-cli price NVDA --market US --days 30    # semi demand proxy
bin/stock-cli price SMH --market US --days 30     # semi ETF
bin/stock-cli price SPY --market US --days 30     # broad US market

Compare to Korean semis:

Are Korean semis following US semi moves?
Lag time: same day or 1-day delay?
Divergence: if NVDA up but SK Hynix flat → investigate why

3. Korean-Specific Assessment

Won/Dollar Impact:

Weak won (USD/KRW > 1,350): benefits exporters, hurts importers
Strong won (USD/KRW < 1,250): attracts foreign capital, supports KOSPI valuation

Foreign Investor Flows:

Track net buying/selling patterns (from price + volume data)
Foreign selling + won weakening = risk-off signal
Foreign buying + KOSDAQ outperformance = risk-on signal

Chaebol Discount:

Korean conglomerates trade at 30-50% P/E discount vs global peers
Samsung trades at ~10x P/E vs TSMC at ~20x
This discount narrows during "Korea discount reform" narratives

KOSDAQ vs KOSPI Ratio:

Rising ratio: risk appetite increasing, growth favored
Falling ratio: flight to quality, defensive positioning

4. Output Format

# Korean Market Analysis — [DATE]

## Market Status
- KOSPI blue chips performance summary
- Key movers up/down
- USD/KRW direction (if inferrable)

## Cross-Market Signals
- US semi move yesterday: [description]
- Expected Korean reaction: [thesis]
- Correlation confidence: [high/medium/low]

## Sector Heat Map
| Sector | 1D | 1W | 1M | Signal |
|--------|-----|-----|-----|--------|
| Semiconductors | | | | |
| EV/Battery | | | | |
| Internet/Platform | | | | |
| Financials | | | | |
| Auto/Transport | | | | |

## Top Opportunities
[2-3 Korean stock ideas with reasoning]

## Risk Factors
- [Won direction risk]
- [Foreign flow risk]
- [China demand risk]
- [Geopolitical risk]

5. (Optional) Log Predictions

If the user wants to act on the analysis, log predictions via:

bin/stock-cli predict create \
  --ticker 000660 \
  --market KR \
  --direction BULL \
  --confidence 0.65 \
  --timeframe 2W \
  --entry-price 876000 \
  --target-price 920000 \
  --stop-price 840000 \
  --reasoning "US semi recovery + oversold bounce from 1.04M high" \
  --signals cross_market,technical,mean_reversion \
  --source INTERACTIVE