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Semiconductors, it's not over yet. Why you need a 'sell plan' now

Semiconductors, it's not over yet. Why you need a 'sell plan' now | Yeo Doe-eun, Jang Woo-jin, Geum Si-gong CEO [Yeouido Insight]
Watch on YouTube ↗  |  June 25, 2026 at 09:19  |  40:37  |  3PRO TV (삼프로TV)
Speakers
Jang Woo-jin — Writer

Summary

Host Yeo Doe-eun and guest Jang Woo-jin (CEO, Geum Si-gong) discuss the stark K-shaped divergence in Korean markets, with KOSPI surging on semiconductor strength while KOSDAQ slumps. Jang analyzes Micron's blowout earnings, warns that semiconductor upside is now limited and margins may peak, advising against chasing and emphasizing the need for a sell plan. He gives a technical outlook for KOSDAQ, suggesting using bounces to exit, highlights stable alternatives like Korean Electric Power and Korean Air, and flags a potential double-top risk in KOSPI amid continued foreign selling.

  • KOSPI up over 5% but KOSDAQ down over 2%, driven by concentrated liquidity in semiconductors and polarization.
  • Micron's record margins and long-term contracts signal robust demand but also a potential peak in memory profitability.
  • Korean semiconductor leaders (Samsung Electronics, SK Hynix) face capped upside; new buyers should exercise caution.
  • KOSDAQ is in a technical downtrend; investors are advised to sell into rallies that fail at the 20-day moving average.
  • Korean Electric Power and Korean Air are seen as stable, low-volatility gainers offering a calmer alternative.
  • KOSPI approaching prior highs; a failure to break out could form a double top and trigger program-driven selling.
  • Foreign institutional selling is expected to continue due to rebalancing, adding headwinds for the broader market.
  • Investors are urged to prioritize downside protection, avoid euphoria, and have a predetermined exit plan for semiconductor holdings.
Ideas
Avoid KOSDAQ, sell into strength.
KOSDAQ is in a technical downtrend after breaking below the 20-day moving average; buying pressure has evaporated as liquidity concentrates on semiconductors. Any bounce that fails to reclaim the 20-day line should be used as an exit opportunity to rotate into stronger parts of the market.
Avoid Micron, margin peak risk.
Micron Technology's Q showing 84.9% gross margin may not be sustainable; management's commentary on long-term contract minimum pricing suggests margins could compress, and even a small margin drop would shock the market. The stock already jumped 18% on earnings, and JP Morgan's $1,540 target offers only ~30% upside, not enough to justify aggressive new positions.
Don't chase Samsung/SK Hynix now.
The explosive phase of the semiconductor memory cycle is past; Micron's 85% gross margin is unsustainable, and long-term contract pricing suggests margin compression. Visible earnings growth now reduces surprise potential, capping upside to around 30% while volatility remains high. Chasing Korean memory leaders at current levels risks being trapped, so new entry should be avoided until pullbacks or new growth catalysts appear.
Watch KOSPI double top failure risk.
The KOSPI rebound is approaching previous highs; if it fails to break through, a double-top formation could trigger trend-following selling from CTA-style funds, significantly increasing downside risk. Monitoring this technical level is crucial for risk management.
Korean Electric, Korean Air steady gainers.
Korean Electric Power and Korean Air offer steady, low-volatility upside in contrast to the sharp swings in semiconductors. Both have been rising steadily and are expected to continue without major fluctuations, providing a calmer return profile for investors seeking stability.
Up Next

This 3PRO TV (삼프로TV) video, published June 25, 2026, features Jang Woo-jin discussing KOSDAQ, MU, 005930.KS, 000660.KS, EWY, 015760.KS, 003490.KS. 5 trade ideas extracted by AI with direction and confidence scoring.

Speakers: Jang Woo-jin  · Tickers: KOSDAQ, MU, 005930.KS, 000660.KS, EWY, 015760.KS, 003490.KS