Amid continued tariff pressure from U.S. President Donald Trump, the KOSPI index fell below 2,600 on the 28th. The KOSDAQ, which started with a slight rise, quickly turned to decline.

As of 9:06 a.m. that day, the KOSPI index recorded 2,567.81, down 39.34 points (1.51%) from the previous transaction. The KOSPI index opened at 2,592.63, down 14.52 points (0.56%) from the previous close.
Most of the top market capitalization stocks showed 'blue lights.' Samsung Electronics, the leading semiconductor stock, fell 2.51%, while SK hynix dropped 2.90%. Samsung Electronics' preferred shares, Samsung Electronics Preferred, decreased by 1.77%. Additionally, LG Energy Solution, Samsung Biologics, Hyundai Motor, Celltrion, Kia, KB Financial, NAVER, and others saw declines in stock prices.
At the same time, the KOSDAQ index was trading at 699.83, down 7.66 points (1.08%). The KOSDAQ index opened at 708.97, up 1.48 points (0.21%) from the previous transaction.
Looking at the top 10 stocks by market capitalization, Alteogen and LigaChem Biosciences are seeing stock price increases. In contrast, ECOPRO BM, Ecopro, HLB, Rainbow Robotics, HUGEL, Sam Chun Dang Pharm, KOLON TissueGene, and CLASSYS are all experiencing declines.
On the 27th (local time), the three major indices of the U.S. New York Stock Exchange recorded weakness. President Donald Trump announced that a 25% tariff would be imposed on all imported cars and car parts, raising concerns about inflation and economic slowdown, which weighed on stock prices.
That day, the Standard & Poor's 500 Index, centered on large-cap stocks, closed at 5,693.31, down 18.89 points (0.33%) from the previous transaction. The Dow Jones Industrial Average, centered on blue-chip stocks, fell by 155.09 points (0.37%) to close at 42,299.70. The Nasdaq index, focused on technology stocks, closed at 17,804.03, down 94.98 points (0.53%) from the previous transaction.
Investor sentiment weakened amid the tariff war initiated by Trump. Following his announcement the previous day of imposing a 25% tariff on all imported cars and car parts, Trump noted early that day around 2 a.m. on social media platform Truth Social that "if the European Union and Canada cooperate to harm the U.S. economically, we will impose much larger taxes."
The stock prices of the 'Magnificent Seven,' referring to a group of major tech companies, showed mixed results. NVIDIA fell by 2.05%. This was influenced simultaneously by the U.S. government's pressure on advanced semiconductor exports to China and the Chinese government's environmental and energy regulatory pressures. Meta and Alphabet also showed declines in the 1% range. In contrast, Apple, Microsoft, Amazon, and Tesla were strong. In particular, there were expectations that Tesla could benefit from a 25% automotive tariff, causing the stock to surge more than 7% during the day.
On that day, the won-dollar exchange rate opened at 1,466.0 won, up 0.7 won from the previous transaction. (The value of the won has fallen)