오늘의 증시 전략: Market Strategy Guide — 2026-05-29
While the KOSPI climbed past the 8,400 mark during morning trading, a severe divergence has emerged with 82% of listed stocks in the red. Although risk sentiment improved following record highs on Wall Street and the US-Iran ceasefire extension, foreign investors remain net sellers for the 15th consecutive day, totaling approximately 50 trillion won. Investors should monitor for signs of sector rotation away from the extreme concentration in Samsung Electronics and SK Hynix, while staying cautious of risks facing small-to-mid-cap stocks.
오늘의 증시 전략: Market Strategy Guide — 2026-05-29
Daily Market Snapshot
- KOSPI: 8,405.81 (as of 9:14 AM, +2.7% / +220.52 points vs. previous close of 8,185.29)
- KOSDAQ: Awaiting official filings — Expected to mirror the tech-driven rally.
- Capital Flow: Foreigners are net sellers for 15 consecutive days (cumulative ~49.85 trillion won), while retail investors are net buyers (cumulative ~41.88 trillion won).
- Exchange Rate/Treasury Bonds: Data pending.
- Trading Value: Estimated increase in volume following KOSPI’s bullish signal.

Global Context — Overnight in the US
- Improved Risk Sentiment via US-Iran Ceasefire: The S&P 500 and Nasdaq closed at all-time highs. The 60-day extension agreement between the US and Iran eased geopolitical tensions, lifting the Dow Jones to a record high as well.
- Oil Price Retreat, Energy Sector Pressure: WTI crude prices fell following the news, which provides a favorable environment for Asian importers like South Korea amid concerns over a global economic slowdown.
- Bond Yield Stability: The 10-year US Treasury yield continues to show lower volatility due to eased geopolitical uncertainty, providing a supportive backdrop for tech stocks.

Leading Sectors & Themes
Semiconductors (Samsung Electronics, SK Hynix)
- Trend: The absolute driver of the KOSPI rally. The semiconductor sector alone is pushing the index up, leading to an extreme polarization where 82% of non-semiconductor stocks are declining.
- Key Stocks:
- Samsung Electronics — Sustained morning strength; momentum built as SK Securities raised its target price to 500,000 won.
- SK Hynix — Target price raised to 3,000,000 won (SK Securities) due to expectations for rising HBM prices; average selling price per gigabyte is projected to increase from $12.90 in 2026 to $20.90 in 2027.
- Associated Semiconductor Stocks — Strengthening the scenario of tight supply, with memory shortages expected to persist through 2027.
- Checkpoints: High risk due to extreme concentration. Foreigners’ massive selective selling (15 consecutive days, 49.85 trillion won) is being offset by heavy buying in large-cap tech. Expect continued high volatility.

Tech (Mid-cap AI Chip Related)
- Trend: Tech preference has deepened due to the launch of single-stock leverage ETFs, causing increased volatility in mid-cap tech stocks beyond the large-cap giants.
- Key Stocks: Increased tech volatility due to inflows into leveraged ETFs.
- Checkpoints: The activation of leveraged products can amplify short-term volatility; investors should re-evaluate the risk of forced liquidation during sharp downturns.
Small-to-Mid-Cap & Non-Tech (Broad Weakness)
- Trend: Despite the KOSPI’s rise, 82% of listed stocks are in decline. Weakness is intensifying among small-cap and cyclical stocks.
- Key Stocks: Specific mentions limited due to data timing; however, non-semiconductor and non-tech sectors remain weak.
- Checkpoints: If this broad polarization continues, the KOSPI’s gains risk failing to reflect the overall market sentiment. Diversification is necessary.
Guide to Monitoring Stocks
This guide is based on brokerage reports and public disclosure data for reference pricing only; all investment decisions are the investor’s sole responsibility.
Samsung Electronics (005930)
- Current Price/Change: Awaiting official closing price — Morning upward momentum remains from yesterday’s strength.
- Capital Flow: Retail net buying (cumulative 41.88 trillion won), while foreign selective selling persists (15 consecutive days) → Growing divergence between domestic retail/institutional and foreign investors.
- Fundamental Triggers:
- HBM supply tightening outlook (shortages through 2027)
- SK Securities target price raised to 500,000 won
- New tech preference following the introduction of single-stock leverage ETFs
- Brokerage Target Price / Support & Resistance: SK Securities 500,000 won / Nomura 590,000 won (previous analysis). Reference 52-week box range: ~210,000 won to ~350,000 won. Current technical resistance estimated at the 360,000 won level.
- Risk Factors:
- Risk of sharp drops due to persistent foreign net selling.
- Potential retreat in risk assets if US-Iran ceasefire worsens.
- Response Scenarios:
- Favorable: Monitor for entry into the 500,000 won range if new HBM contracts or earnings improvements materialize. If resistance at 360,000 won is breached, there is room for further upside.
- Unfavorable: If foreign selling pressure intensifies or Middle East tensions resurface, a quick re-evaluation of the position is essential if the lower support of 300,000 won is breached.
SK Hynix (000660)
- Current Price/Change: Awaiting official closing price — Continued strength from yesterday, rising on HBM supply optimism.
- Capital Flow: Retail-led buying; foreign selective selling (mostly large-caps, though Hynix is relatively strong).
- Fundamental Triggers:
- Rising HBM prices: Projected $12.90 (2026) to $20.90 (2027) (Nomura)
- SK Securities target price raised to 3,000,000 won
- Sustained memory chip supply shortage
- Brokerage Target Price / Support & Resistance: SK Securities 3,000,000 won, Nomura 4,000,000 won long-term (previous). Reference 52-week box range: ~850,000 won to ~1,650,000 won. Current technical resistance estimated at 1,700,000 won.
- Risk Factors:
- HBM supply glut risk (potential increase in supply from competitors).
- Potential for increased volatility due to sustained large-scale foreign net selling.
- Response Scenarios:
- Favorable: Monitor for a breach of the 1,800,000 won level if new HBM client contracts or upward quarterly earnings revisions are announced. Strengthen long-term holdings as the target of 3,000,000 won is approached.
- Unfavorable: Watch for a breach of the 1,500,000 won support level if news of poor memory chip demand emerges or foreign selling pressure peaks.
Small-to-Mid-Cap Cyclicals (Sector Representative)
- Current Price/Change: Broad weakness persists — Many individual small/mid-cap stocks are falling despite the KOSPI’s rise.
- Capital Flow: Selective selling by institutions + persistent foreign net selling is intensifying pressure.
- Fundamental Triggers:
- Relative weakness due to broad market concentration in tech.
- Absence of earnings improvement signals in cyclical sectors (construction, automotive, chemicals).
- Brokerage Target Price / Support & Resistance: Varies by stock, but likely trading near the bottom of 52-week box ranges due to broad sell-offs. Refer to individual reports.
- Risk Factors:
- Decline in relative attractiveness of small/mid-caps due to tech concentration.
- Difficulty in supporting prices with only domestic retail/institutional capital amid prolonged foreign selling.
- Response Scenarios:
- Favorable: Carefully enter only after identifying a signal for sector rotation—e.g., profit-taking signals in tech or news of earnings improvements in non-tech sectors.
- Unfavorable: Risk of further decline if foreign selling accelerates and tech weakness expands. Pre-set stop-loss levels near 52-week lows.
Events to Watch Tomorrow
- US June Non-Farm Payrolls (NFP) (Expected first week of June) — Impacts Federal Reserve interest rate decisions; affects KRW exchange rate and tech sentiment in Korea.
- Bank of Korea Policy Rate Decision (Mid-June) — A key point to watch for foreign capital flow via KRW rates and bond yields.
- Samsung Electronics/SK Hynix Quarterly Earnings (May–June closing reports) — Expected to trigger target price adjustments by providing visibility into future semiconductor demand.
- Geopolitical Risks — Potential for sentiment shifts if US-Iran ceasefire negotiations reopen.
Quick Strategy Memo
With semiconductor large-cap concentration deepening, retail investors must prepare for broad volatility. While the US-Iran ceasefire extension improved risk sentiment, the persistent 15-day foreign net selling (approx. 50 trillion won) threatens to structuralize weakness in non-tech sectors. The breakout past 8,400 is driven solely by tech; investors should prioritize diversification while keeping an eye on potential further drops in small/mid-caps and cyclical sectors. Look for sector rotation opportunities via tech profit-taking signals or earnings improvements in other sectors. It is recommended to pre-set stop-loss levels near the 52-week lows for individual stocks to manage risk.
Glossary & Notes
- Capital Flow (수급): The flow of net buying/selling by foreigners, institutions, and retail investors.
- Box Range (박스권): The price range formed by recent 52-week or quarterly highs and lows.
- Support/Resistance (지지/저항): Actual levels observed in brokerage reports and charts (no arbitrary figures used).
- HBM (High Bandwidth Memory): A core component for improving AI chip performance.
This material is a market briefing summarizing publicly available news, disclosures, and brokerage reports. It is not an investment recommendation or guarantee of returns; all trading decisions and results rest with the investor.
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