Last weekend, the U.S. New York Stock Exchange reached an all-time high, but uncertainty over tariffs persists, leading the KOSPI and KOSDAQ indices to start moderately higher on the 30th.

On the 27th, the KOSPI index appears on the display board in the dealing room of Hana Bank headquarters in Jung-gu, Seoul./Courtesy of News1

As of 9:03 a.m. that day, the KOSPI index was trading at 3,072.36, up 14.97 points (0.47%) from the previous day. In the securities market, individuals and institutions made net purchases of 17.4 billion won and 11.1 billion won, respectively. Foreigners are net selling 22.3 billion won.

The top 10 stocks by market capitalization are showing mixed trends. Doosan Enerbility is up over 7% after former CEO Kim Jeong-kwan was nominated as Minister of Trade, Industry and Energy. SK hynix, LG Energy Solution, and NAVER are also experiencing gains. KB Financial, Hanwha Aerospace, and Samsung Electronics preferred shares are in decline. Samsung Electronics, Samsung Biologics, and Hyundai Motor are stable.

The KOSDAQ index is trading at 782.57, up 1.14 points (0.15%) from the previous day at the same time. In the KOSDAQ market, individuals are making a net purchase of 17 billion won, while foreigners and institutions are net selling 9.2 billion won and 4 billion won, respectively.

The KOSDAQ's top stocks are also showing mixed trends. ECOPRO BM, Ecopro, Rainbow Robotics, HUGEL, and CLASSYS are on the rise. Alteogen, HLB, PharmaResearch, LigaChem Biosciences, and Peptron are declining. In particular, Peptron is down over 10%.

In the Seoul foreign exchange market that day, the won-dollar exchange rate was trading at 1,360 won, down 3 won from the previous day.

On the 27th (local time), the major index of the U.S. stock market, the Standard & Poor's (S&P) 500, closed at 6,173.07, surpassing its all-time high. The Nasdaq index also reached 20,273.46, hitting its highest point in six months since December 16 of last year.

The Trump administration mentioned the possibility of extending the tariff suspension deadline once more during the trading session. The mutual tariff is currently suspended until the 8th of next month.

White House Spokesperson Carolyn Levitt said, "The tariff suspension deadline may possibly be extended, and it's the president's decision."

However, President Trump drew a line on the possibility of further tariff suspensions, maintaining uncertainty over tariffs. Rather than suspending tariffs again, he indicated that they would notify based on the previously announced tariff rates. In an interview with Fox News on the 29th (local time), President Trump stated, "We are negotiating with every country, but it's better to send a letter, and letters regarding tariffs are the end of trade negotiations."

Hwang Sang-hae, a researcher at LS Securities, noted, "As administration officials spoke about the results of negotiations with the target countries before the expiration of the tariff suspension, a sense of relief was formed, and the market, which had anticipated unavoidable tariff noise in early July, expressed relief."

He added, "However, over the weekend, President Trump stated in an interview that there is no need for further tariff suspensions and expressed support for imposing them, raising concerns about negotiation shocks again."

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