Global & Korea Equity Market Intelligence — 2026-04-23

Market Snapshot — By the Numbers

Note: Please check Yahoo Finance for real-time closing prices. Data reflects the Korean market on April 23 and US market as of April 22.

Korea Market Deep Dive

KOSPI

• Close: The KOSPI broke through the 6,400 mark to set a new all-time high for two consecutive days. However, it retreated from the 6,500 level during the day as foreign selling followed the SK Hynix earnings report.
• Day range: Started above 6,500 in the morning but pulled back into the 6,400 range.
• Foreign / institutional flow: Foreign investors continued their net selling trend. Retail (individual) investors took profits from Samsung Electronics and SK Hynix, rotating their funds into non-semiconductor stocks like NAVER and HYBE.

KOSDAQ

• Leadership: Details currently unavailable due to limited data. The shipbuilding and defense sectors are moving in tandem with the KOSPI.
• Day range: Update pending.

Top Movers (Korea)

Gainers

• Shipbuilding & Defense-related stocks: Led the KOSPI’s gains on April 23. These sectors, along with power equipment, supported the index despite foreign selling after the disappointing SK Hynix report.
• NAVER / HYBE: Saw inflows as retail investors rotated funds from semiconductors into internet and entertainment stocks following the KOSPI record high.

Losers

• SK Hynix (000660) (Down low 2% from opening): Posted record Q1 results with 52.58 trillion KRW in revenue and 37.61 trillion KRW in operating profit, but missed the market consensus of 40 trillion KRW, causing an immediate dip.
• Samsung Electronics-related semiconductor ETFs: Performance varied significantly based on the weighting of Samsung Electro-Mechanics due to the fallout from SK Hynix’s results.
• Foreign selling targets: General downward pressure on large-cap stocks as foreign investors maintained a net selling stance.

1 sources

asiae.co.kr

asiae.co.kr

Sector Flows

• Semiconductors: Despite SK Hynix hitting record quarterly revenue (52.58 trillion KRW) and profit (37.61 trillion KRW), the miss against expectations (~40 trillion KRW) led to a 2% drop. Retail investors reduced their positions in Samsung Electronics and SK Hynix after the KOSPI hit record highs on April 21.

• Shipbuilding & Defense: The leading sectors behind the KOSPI's two-day record streak. Global geopolitical tensions (US-Iran) continue to fuel demand for defense, with power equipment stocks also showing strength.

• Internet & Entertainment: NAVER and HYBE absorbed funds from retail profit-taking in the chip sector, acting as beneficiaries of sector rotation.

• Biotech & Healthcare: Specific data not yet available.

Global Drivers Behind Today's Tape

• US-Iran truce extension: President Trump’s extension of the US-Iran truce pushed the S&P 500 and Nasdaq to record highs on April 22. This truce remains a key catalyst for risk assets amidst ongoing uncertainty.
• Tesla earnings disappointment: Tesla’s after-hours miss triggered a decline in futures, placing pressure on tech stocks in the Asian session.
• Rising oil prices: Brent crude is trading above $101. Iran’s attacks on shipping and the US maritime blockade continue to stoke supply fears, supporting the energy sector.
• Single-stock leverage ETF approval: South Korean regulators approved 2x leveraged ETFs for single stocks (like Samsung Electronics and SK Hynix) starting May 22, which may change supply/demand dynamics for major chip stocks.
• SK Hynix Q1 results: A tale of two stories—record profits that still failed to meet high market expectations. The future of AI memory demand and HBM supply remains the key focus.

Asia Read-Through

While US futures have slipped following Tesla's earnings, the fact that the S&P 500 and Nasdaq remain near record highs provides a buffer for the Asian session. Profit-taking in semiconductors could spill over into Tokyo and Taipei. Meanwhile, Brent crude topping $101 is a burden for energy-importing nations like South Korea and Japan, but the strength in defense and shipbuilding is likely to persist.

What to Watch Next

• Economic Indicators: Updates on US-Iran truce negotiations, and Korean consumer price/export data.
• Earnings Calendar: Details from the SK Hynix conference call (look for HBM3E guidance), preliminary Q1 results from Samsung Electronics, and ongoing US Big Tech earnings.
• Key Technical Levels: Watch for support at the KOSPI 6,400 level; a drop could test the 6,200–6,300 zone. 6,500 now acts as short-term resistance.
• Macro Monitoring: Direction of US 10-year Treasury yields, the USD/KRW exchange rate, and whether Brent crude holds the $100 mark. Also, monitor market positioning ahead of the May 22 single-stock leverage ETF launch.

Reader Action Items

• Domestic Retail Investors: Pay attention to the rotation from semiconductors into defense, shipbuilding, and internet stocks. With single-stock leverage ETFs launching on May 22, prepare for increased volatility in Samsung Electronics and SK Hynix.

• Global Investors in Korea: Note that the "record profit but missed expectations" pattern for SK Hynix calls for a reassessment of the HBM demand narrative. The USD/KRW rate will be the primary trigger for a resumption of foreign buying. Consider increasing weight in domestic themes like defense and shipbuilding during periods of foreign selling.

• Contrarian View: While the market views semiconductor earnings as a temporary adjustment, the leadership of shipbuilding and defense suggests the Korean market is diversifying away from a sole reliance on chips. If the Iran situation drags on, the structural momentum for "K-Defense" exports may be underestimated by current consensus.