Market Review: Geopolitical Relief Meets Fundamental Strength

On Wednesday, April 8, 2026, the South Korean equity market delivered a session for the history books. After weeks of suffocating under the threat of a Middle Eastern war and a soaring dollar, the market violently snapped back. The KOSPI skyrocketed +7.39% to close at 5,901.11, while the KOSDAQ advanced +4.42% to 1,082.52.

The macro landscape shifted dramatically overnight. The USD/KRW exchange rate plunged by 27.0 won to close at 1,474.0 KRW, and South Korean 3-year government bond yields dropped sharply. Retail investors panic-sold into the rally (dumping nearly 5 trillion KRW), while foreign and institutional investors aggressively absorbed the volume, creating the largest foreign net buying spree since October 2025.

1. The 14-Day Truce: WTI Crude Crashes Below $100

The primary catalyst for the explosive rally was a major diplomatic breakthrough.

• The Agreement: Just 90 minutes before a rumored military deadline, the U.S. and Iran agreed to a 14-day cessation of military attacks. Crucially, the agreement includes the safe passage of vessels through the Strait of Hormuz during this period.
• Diplomacy in Motion: The market was highly encouraged by the specific details of the next steps. Face-to-face negotiations are slated to take place in Islamabad, with U.S. Vice President Vance expected to participate. Additionally, Israel’s agreement to the truce eliminated a major wildcard that could have derailed the process.
• The Oil Collapse: The immediate alleviation of the geopolitical premium caused WTI crude to crash over -15%, instantly dropping back below the $100 threshold and easing global stagflation fears.

2. The Foreign Capital Tsunami: Semis and Rebuilding

Foreign investors returned with a vengeance, net buying over 2.03 trillion KRW on the KOSPI, with nearly 80% of that capital concentrated in the electric and electronic sectors.

• The Semiconductor Squeeze: Empowered by yesterday’s massive earnings surprise, the tech giants went parabolic. Samsung Electronics surged +8.4%, while SK Hynix exploded +14.1%. The easing of macro risks allowed the market to finally price in the astronomical AI memory demand.
• The Reconstruction Narrative: With the war pausing, capital violently rotated into post-war rebuilding themes. The construction sector as a whole gained +19.30%, led by infrastructure giants like Daewoo E&C (+29.97%) and GS E&C (+29.86%).
• Telecom and AI Infrastructure: The telecommunications equipment sector saw multiple stocks hit the daily limit. As AI investment expands from pure semiconductors into broader data center network infrastructure, telecom suppliers caught massive bids.

3. Valuation Normalization

It is important to note that the KOSPI had recently bottomed at a deeply discounted forward P/E of 7.6x due to the war panic. However, throughout the crisis, corporate earnings estimates were never downgraded. Today’s massive gap-up is essentially a rapid valuation normalization, bringing the index back toward fair value as the artificial geopolitical discount evaporates.

K-Stock Radar: Today’s Top 5 Momentum Charts

The following 5 stocks were the absolute centerpieces of today’s historic rally, capturing the massive inflow of foreign and institutional capital across the semiconductor, rebuilding, and infrastructure sectors.

1. Samsung Electronics (005930)
Surged +8.4% as foreign capital aggressively bought the stock. The lifting of the geopolitical fog allowed the market to fully price in the monumental 57 trillion KRW Q1 operating profit announced yesterday.

2. SK Hynix (000660)
Exploded +14.1%, riding the massive global tech tailwind and the dramatic drop in U.S. Treasury yields, reaffirming its dominance in the global AI memory supply chain.

3. Daewoo E&C (047040)
Hit the daily upper limit (+29.97%). The stock benefited from a dual momentum of Middle East post-war reconstruction expectations and anticipated nuclear plant construction contracts in Europe.

4. Heerim (037440)
Closed at the upper limit (+29.99%) as the premier architectural and engineering play for Middle East reconstruction, boasting a strong track record of winning airport and hospital contracts in Iran.

5. Kisan Telecom (032190)
Soared to the upper limit (+30.00%) as the market recognized that the AI investment super-cycle is rapidly expanding from purely chips into telecommunications networks, optical communications, and data center infrastructure.

Market Summary: The "Peak War" narrative has finally broken. While the 14-day truce is not a finalized peace treaty, it effectively removes the immediate threat of a catastrophic regional conflict and a permanent closure of the Strait of Hormuz. With WTI crude back below $100 and corporate earnings at historic highs, the KOSPI is rapidly escaping its "Deep Value" territory. Although there may be intermittent noise during the Islamabad negotiations over the next two weeks, the structural direction has shifted toward risk-on. Investors should focus heavily on the primary market drivers: proven semiconductor leaders and the emerging infrastructure/reconstruction plays.