Lee Hyung-soo
CEO, HSL Partners
Lee Hyung-soo (이형수) is chief executive of HSL Partners (HSL파트너스) and an IT and semiconductor investment commentator who runs the YouTube channel IT의 신 이형수 (God of IT). He draws on about ten years as an IT reporter and in Seoul's Yeouido investment industry, has been a regular panellist on Korean business channels including Maeil Business TV, Money Today Broadcasting, Korea Economic TV and Yonhap News Economy TV, and is a frequent guest on 3PRO TV and 815 Money Talk. He has written several books on semiconductor and AI investing since 2023, including AI Ten-Bagger Investing (AI 텐베거 투자, 2025) and AI Bubble: Practical Semiconductor Investing (AI 버블, 반도체 실전 투자법, 2026). His analysis centres on the memory-chip cycle at Samsung Electronics and SK hynix, demand for high-bandwidth memory, and the wider AI hardware supply chain, including Korean chip-equipment and materials makers.
Leaderboard rank
Open in leaderboard →| Horizon | 7D | 30D | 90D | 180D | 360D | AVG |
|---|---|---|---|---|---|---|
| Rank | #426 | #22 | #26 | — | — | — |
| Calls | 18 | 15 | 12 | 9/10 | 0/10 | 9/10 |
| Avg return | +2.4% | +23.1% | +43.8% | — | — | — |
| vs S&P 500 | +0.7 pp | +18.1 pp | +34.1 pp | — | — | — |
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Lee Hyung-soo has 16 trade ideas tracked on Buzzberg across 16 tickers since April 2026. Win rate 69% across 16 evaluated calls, average return +14.6%. Ranked #22 on Buzzberg's 30-day Authors leaderboard. Most covered: 000660.KS, 005930.KS, SMH.
Historical call returns are modeled from recorded ideas and stored prices, not actual brokerage portfolio returns. Check the evaluated call set and horizon; past results do not establish future prediction accuracy. Explore our data and methodology
