[2026-05-22] Korea Stock Market Morning Preview | KOSPI Profit-Taking vs Chase-Buying After 8% Surge

📌 One-Line Summary

Following yesterday's KOSPI +8.42% surge, today's session is expected to see a tug-of-war between profit-taking and chase-buying. Market participants are watching whether Nvidia-driven AI semiconductor momentum can persist despite lingering pressure from the won/dollar exchange rate above 1,500.

🌙 Overnight Markets

U.S. markets closed mixed-to-firm overnight, with all three major indices posting modest gains as risk-on sentiment persisted. AI semiconductor names attracted buying flows after Nvidia's strong earnings report, while progress on U.S.-Iran ceasefire negotiations continued to support risk assets. However, given that Korean equities already staged a near 8% rally in the prior session, the muted close on Wall Street may provide only limited additional upside momentum for KOSPI today.

Index	Close	Change
S&P 500	7,445.72	+0.17%
NASDAQ	26,293.10	+0.09%
Dow Jones	50,285.66	+0.55%

The Dow led with a relatively firm +0.55% gain, while the tech-heavy NASDAQ added only +0.09%, hovering near the flatline. This pattern suggests that despite the powerful Nvidia earnings tailwind, short-term profit-taking pressures emerged — a dynamic Korean investors should monitor closely for potential read-through to today's session.

💱 FX & Commodities

The won/dollar exchange rate remains anchored in the upper 1,500 range, with the prior session close at 1,507.77 — a level that continues to weigh on foreign capital flows into Korean equities. A decisive break below 1,500 would likely be a critical trigger for a meaningful reversal in foreign investor sentiment.

Item	Close	Note
USD/KRW	1,507.77	Holding upper 1,500 range
WTI Crude	7.76	U.S.-Iran ceasefire expectations weigh
Bitcoin	77,620	Supports risk-on sentiment

Crude oil prices continue to soften meaningfully on growing optimism around U.S.-Iran ceasefire negotiations. Lower energy costs should help ease global inflation pressures and provide a tailwind to oil-sensitive sectors such as airlines and shipping. Bitcoin's resilience above 77,620 further reinforces the broader risk-on backdrop and could spill over into Korean crypto-linked names during the session.

🔥 Today's Key Themes & Sectors

1. AI Semiconductors — Momentum Expected to Persist

Riding on Nvidia's earnings surprise and the expected continuation of the AI infrastructure investment cycle, HBM and memory plays such as SK Hynix, Samsung Electronics, and Hanmi Semiconductor may extend their uptrends. With trading volume concentrating heavily in semiconductor large-caps during yesterday's rally, the direction of foreign investor flows will be the decisive factor for further upside.

2. Samsung Electronics Suppliers — Relief Rally on Strike Resolution

Samsung Electronics and its labor union reached a last-minute agreement just before a full-scale strike, removing a key tail risk. This is expected to support a short-term relief rally in first-tier suppliers and semiconductor equipment makers. However, with much of the good news already priced in during yesterday's session, additional gains may depend on company-specific catalysts.

3. Profit-Taking Risk on Large-Caps — Watch for Short-Term Overheating

Yesterday's +8.42% KOSPI surge has created clear short-term overheating signals. Profit-taking is likely to emerge in the day's biggest gainers, and with today being a Friday, weekend position-squaring may amplify selling pressure. A gap-up open followed by a bearish close is a scenario investors should prepare for.

4. Nuclear Power & Defense — Divergence Likely

Easing geopolitical tensions from U.S.-Iran ceasefire progress could trigger a short-term correction in defense names. By contrast, nuclear and power infrastructure plays benefit from the structural tailwind of rising electricity demand from AI data centers and are likely to remain relatively resilient.

5. Crypto-Related Stocks — In Sync with Bitcoin Strength

With Bitcoin sustaining strength above 77,620, Korean crypto-linked plays — including Dunamu-related names, exchange operators, and blockchain stocks — may move in tandem. As long as risk appetite holds, these themes could continue to attract buying interest despite elevated volatility.

🎯 Scenario Outlook

🟢 Bullish Scenario

If foreign investors flip from 11 consecutive sessions of net selling to net buying, and institutions join in on the buy-side, KOSPI could break above 7,900 and challenge the 8,000 level. Nvidia-driven momentum would spread across semiconductor large-caps, supporting further gains led by top market-cap names. A decisive move below 1,500 in USD/KRW would likely accelerate this scenario.

🟡 Neutral Scenario

Short-term profit-taking and fresh buying interest balance each other out, with KOSPI trading in a 7,750–7,850 range. As long as USD/KRW lingers in the upper 1,500s, foreign investors are unlikely to flip aggressively to net buyers, leaving the session characterized by sector rotation and stock-by-stock differentiation, with thematic and mid/small-cap names taking the lead.

🔴 Bearish Scenario

If concentrated profit-taking dominates, KOSPI could open with a gap-up but close lower, retracing toward 7,700. Should foreign selling resume and USD/KRW push back above 1,510, market sentiment could deteriorate quickly. Yesterday's biggest gainers would face the most pressure, dragging the index lower.

⚡ Key Checkpoints for Today

• Foreign investor flow reversal — Will the 11-session net-selling streak finally end?
• USD/KRW attempting break below 1,500 — A critical trigger for risk-on recovery
• Semiconductor leader volume — Monitor trading volume momentum in Samsung Electronics and SK Hynix
• Friday close profit-taking — Assess the intensity of pre-weekend position squaring
• Weekend global events — Track U.S. PMI data and U.S.-Iran negotiation progress
• Key support/resistance — KOSPI support 7,700 / resistance 8,000; KOSDAQ support 1,080 / resistance 1,150

📅 Today's Economic Events

🌍 Global Schedule (KST)

Time (KST)	Country	Event	Forecast/Previous	Actual
00:00	GBP (UK)	BOE Gov Bailey Speaks	-/-	TBD

Notable events from the prior session (5/21) included U.S. FOMC Meeting Minutes (03:00 KST) and Australian employment data (10:30 KST). For today, BOE Governor Bailey's speech is the key global event to watch for monetary policy commentary that could move sentiment.

🇰🇷 Domestic Schedule

No major DART disclosures or domestic macro releases are scheduled for today. Market attention will instead focus on participant trading patterns and shifts in foreign investor flows following yesterday's powerful KOSPI surge.

📊 Key Support & Resistance Levels

Index	Support	Resistance	Prior Close
KOSPI	7,700	8,000	7,815.59 (+8.42%)
KOSDAQ	1,080	1,150	1,105.97 (+4.73%)

KOSPI opens from 7,815, making the 7,700 support test and the 8,000 resistance challenge the day's key technical pivots. KOSDAQ, having gained +4.73% in the prior session, may attempt a push toward 1,150 provided that 1,080 support holds firm.

⚠️ Investment Disclaimer

This post is for informational purposes only and does not constitute investment advice. With clear short-term overheating signals following yesterday's +8.42% KOSPI surge, a measured approach using staggered buying and selling is preferable to chasing the rally. Structural headwinds — including the won/dollar exchange rate above 1,500 and 11 straight sessions of foreign net selling — remain in place, warranting a conservative portfolio stance prepared for elevated volatility. All investment decisions are the sole responsibility of the investor. Past performance does not guarantee future results.

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