On the 3rd, the KOSPI index hit a weekly high again, driven by domestic and foreign positive news. The previous night, the United States and Vietnam reached an agreement on tariffs, and on the same day, the amendment to the Commercial Act passed the National Assembly. President Lee Jae-myung, marking one month in office, mentioned the 'KOSPI 5000 era' once again. The KOSDAQ index also rose by over 1%, approaching the 800 level.
On that day, the KOSPI index closed at 3116.27, up 41.21 points (1.34%) from the previous trading day. The index opened at 3100.33, up 25.27 points (0.82%) from the previous session and fluctuated around the 3100 mark, but began to increase in the afternoon, rising above 3110. It surpassed the previous weekly high of 3108.25 recorded on the 25th of last month.
The index increase that day was led by foreign investors and domestic institutions. While individual investors sold 1.233 trillion won, foreigners and institutions net bought 629 billion won and 562 billion won, respectively.
Lee Kyung-min, a researcher at DAISHIN SECURITIES, noted, 'The previous day, U.S. President Donald Trump announced the completion of trade negotiations with Vietnam, leading to expectations that global supply chain uncertainties would ease,' and added, 'Excluding Japan and Hong Kong, which are struggling with tariff negotiations with the U.S., the overall Asian stock markets are experiencing inflows of positive sentiment.'
Meanwhile, Samsung Electronics, which had paused its upward trend, closed at 63,800 won, up 3,000 won (4.93%) from the previous trading day. Preferred shares of Samsung Electronics also rose by 4.34%. This is the highest price since the end of September last year. As the National Assembly moves from amending the Commercial Act to potentially easing dividend income tax or reforming inheritance tax, it appears that the cash-rich Samsung Electronics may become a beneficiary of these changes.
In contrast, SK hynix closed at 278,500 won, down 500 won (0.18%) from the previous trading day. The likelihood of the so-called 'big, beautiful bill' containing Trump's tax cut promises being rejected in the U.S. House of Representatives has diminished, leading to reduced expectations for semiconductor tax credits.
Conversely, concerns about the abolition of electric vehicle subsidies eased, and the secondary battery sector showed strength. LG Energy Solution closed at 318,500 won, up 16,000 won (5.29%) from the previous trading day. Ecopro (12.08%), L&F (8.07%), Samsung SDI (3.52%), and LG Energy Solution (373220) (5.29%) also saw gains.
Additionally, most of the top market capitalization stocks, including Samsung Biologics, KB Financial, Hyundai Motor, NAVER, Kia, and Doosan Enerbility, closed higher.
The passage of the amendment to the Commercial Act during the National Assembly's plenary session that afternoon also contributed to the bullish market. The bill includes provisions for the board members' duty of loyalty to shareholders, the mandatory electronic shareholders' meeting, and the '3% rule' limiting the voting rights of the largest shareholders and related parties to 3%. President Lee also emphasized again during a press conference held that morning, 'I will prepare for the KOSPI 5000 era through the advancement of the capital market, which is the core platform for strong technological-led growth.'
The KOSDAQ index closed at 793.33, up 11.16 points (1.43%) from the previous trading day. The index's rise was again led by foreign investors and domestic institutions. Foreign investors net bought 107.2 billion won, and institutions purchased 39.7 billion won worth, while individuals sold off 149.7 billion won.
All of the top 10 stocks by KOSDAQ market capitalization saw 'red lights' turn on. Ecopro rose by 5.37%, and PharmaResearch increased by 6.28%. LigaChem Biosciences and Peptron also rose by 5.84% and 4.85%, respectively. Alteogen, Ecopro BM, HUGEL, Rainbow Robotics, CLASSYS, and others also experienced gains.
As of 3:30 p.m. on that day, the exchange rate of the Korean won against the U.S. dollar (won-dollar exchange rate) in the Seoul foreign exchange market recorded 1,359.4 won, up 0.7 won from the previous day.