South Korean markets fluctuate amid semiconductor trends and rising US yields

South Korean stock market semiconductor industry KOSPI KOSDAQ US Treasury yields

South Korean equity markets have experienced significant volatility driven by the semiconductor sector and fluctuating US Treasury yields. While gains in US semiconductor stocks, including Micron, have provided upward momentum for major domestic players like Samsung Electronics and SK hynix, rising US interest rates and oil prices have simultaneously pressured investor sentiment.

In recent sessions, the KOSPI has seen mixed performance, at times rebounding on AI-related chip demand but also facing sell-offs due to macroeconomic headwinds. The semiconductor industry remains a primary driver, with SK hynix and Samsung Electronics heavily influencing index movements. Meanwhile, the KOSDAQ has shown resilience in specific sectors like bio and new listings, though it remains sensitive to interest rate shifts.

On the currency front, the South Korean foreign exchange authorities have actively intervened to stabilize the won. Reports indicate that over 20 billion USD was deployed in the first half of the year to defend the exchange rate against a strengthening US dollar, driven by global geopolitical tensions and high domestic demand for foreign investments.

Entities

Doosan · HLB · KOSDAQ · KOSDAQ · KOSPI · KOSPI · Korea Exchange · SK Hynix · Samsung Electronics · South Korea · US FDA

Claims

What the coverage asserts, and how many sources carry each claim.

[○ 1 SOURCE] The US 30-year Treasury yield reached a high of 5.519% during the holiday period.
[○ 1 SOURCE] ST Pharm signed a 91.3 billion won supply contract for oligonucleotide drug raw materials with a global biotech firm.
[● 2 SOURCES] The KOSDAQ index rose by 0.25% to 846.58 on September 28.
[● 2 SOURCES] The US FDA approved HLB's bile duct cancer treatment, Rivplatt.
[○ 1 SOURCE] Doosan is expanding its CCL production capacity to support AI server demand.
[● 2 SOURCES] The KOSPI index fell by 2.70% to 6,889.74 on September 28.
[● 3 SOURCES] Samsung Electronics and SK hynix rose following gains in US semiconductor stocks. www.jnilbo.com · www.blockmedia.co.kr · www.koreaherald.com
[● 2 SOURCES] Elevated US Treasury yields continued to weigh on investor sentiment. www.jnilbo.com · www.koreaherald.com
[● 3 SOURCES] The KOSPI index opened with a gain of over 1% on the 30th. www.jnilbo.com · www.blockmedia.co.kr · www.koreaherald.com