During the regular Korean market session (09:00–15:30) on August 24, 2026, the KOSPI and KOSDAQ closed in opposite directions. The KOSPI fell 215.99 points (3.12%) from the previous trading day to 6,696.96 points, while the KOSDAQ rose 11.39 points (1.42%) to 813.33 points. Among the tracked stocks, Samsung Electronics posted the largest decline at 8.70%, while Hyundai Motor fell 0.24%, limiting its loss relative to the KOSPI.

KOSPI Falls to 6,696.96 Points, KOSDAQ Returns Above 813

Index August 24, 2026 Regular-Session Close Change From Previous Trading Day
KOSPI 6,696.96 points -215.99 points (-3.12%)
KOSDAQ 813.33 points +11.39 points (+1.42%)

The KOSPI opened at 6,881.07 points on August 24, 2026, rose as high as 6,884.57 points during the session, then recorded a low of 6,656.07 points before ending the regular session at 6,696.96 points. The close was 184.11 points below the opening level. KOSPI closing data

The KOSDAQ opened at 804.27 points on the same trading day, which was also its intraday low, rose to a high of 821.96 points, and closed at 813.33 points. The close was 9.06 points above the opening level. KOSDAQ closing data

Based on closing data alone, August 24, 2026, was a trading day in which the Korea Exchange main-board index and the KOSDAQ index ended in different directions. While the KOSPI’s decline and the KOSDAQ’s gain were both observed, these results alone do not establish that a particular sector or investor group caused the difference between the two markets.

Samsung Electronics Falls 8.70%, SK Square Also Down 4.19%

Samsung Electronics ended the regular session on August 24, 2026, at 257,000 won, down 24,500 won (8.70%) from the previous trading day. It recorded an opening price of 270,000 won, a high of 274,000 won, a low of 255,000 won, and regular-session volume of 50,127,128 shares. The day’s close was 2,000 won above the intraday low but 13,000 won below the opening price. Historical analysis is available through Samsung Electronics closing data and the Samsung Electronics stock hub.

SK Square closed at 1,076,000 won on August 24, 2026, down 47,000 won (4.19%). It recorded an opening price of 1,109,000 won, a high of 1,145,000 won, a low of 1,061,000 won, and regular-session volume of 658,360 shares. Its 4.19% decline was 1.07 percentage points larger than the KOSPI’s 3.12% decline on the same trading day. Individual records are available through SK Square closing data and the SK Square stock hub.

The collected Yonhap News article presented Samsung Electronics’ announcement of its 2026 shareholder-return implementation plan and the market response as background. This is the interpretation presented in the original article; the fact directly confirmed by closing data is that Samsung Electronics fell 8.70% to 257,000 won on August 24, 2026. Original Yonhap News article

SK Hynix Falls 3.41%, Hyundai Motor Shows Relative Difference

SK Hynix ended the regular session on August 24, 2026, at 1,671,000 won, down 59,000 won (3.41%) from the previous trading day. It recorded an opening price of 1,745,000 won, a high of 1,792,000 won, a low of 1,666,000 won, and regular-session volume of 6,228,926 shares. The close was 5,000 won above the intraday low and 74,000 won below the opening price. SK Hynix closing data and the SK Hynix stock hub can be viewed together.

Hyundai Motor closed at 414,000 won on August 24, 2026, down 1,000 won (0.24%). It recorded an opening price of 417,000 won, a high of 421,500 won, a low of 408,000 won, and regular-session volume of 570,266 shares. Hyundai Motor’s decline was 2.88 percentage points smaller than the KOSPI’s decline and was the most limited closing loss among the four tracked stocks. Historical analysis is available through Hyundai Motor closing data and the Hyundai Motor stock hub.

In the editor’s interpretation, Samsung Electronics, SK Square, and SK Hynix each recorded different rates of decline, while Hyundai Motor showed different relative performance from them. However, the fact that the four stocks’ closing movements occurred on the same trading day as the KOSPI’s movement does not establish that any one stock caused the index’s movement.

Investor Flow Figures and Reported Background Should Be Read Separately

The collected investor-by-investor flow figures for August 24, 2026, were individuals +33,209억원, foreign investors -36,764억원, and institutions -12,928억원. By sign, individuals were net buyers, while foreign investors and institutions were net sellers. Investor flow data for August 24, 2026

The collected Korea Economic Daily article presented foreign investors’ and institutions’ selling dominance as background for KOSPI weakness in its headline and also reported the KOSDAQ’s gain. This is the market interpretation presented by the report. The results confirmed by regular-session closing data are KOSPI -3.12%, KOSDAQ +1.42%, and the direction of that day’s investor flow figures; simultaneous movement during a single trading day does not establish causality between investor flows and the indices. Original Korea Economic Daily article

Three Items to Check in the Next Regular Session

  • For the KOSPI, it is necessary to monitor the next regular-session closing trend using the August 24, 2026 close of 6,696.96 points and intraday low of 6,656.07 points as reference levels; for the KOSDAQ, the reference levels are its close of 813.33 points and intraday high of 821.96 points.

  • It is necessary to observe how the closing-price-relative movements of Samsung Electronics -8.70%, SK Hynix -3.41%, Hyundai Motor -0.24%, and SK Square -4.19% on August 24, 2026, change in the next regular session. These are observation reference points only and do not provide a basis for determining the direction of the next trading day.

  • It is necessary to check whether the August 24, 2026 investor flow directions of individuals +33,209억원, foreign investors -36,764억원, and institutions -12,928억원 continue in the next regular-session figures. Investor flow figures and prices are items to observe together, but simultaneous movement during a single trading day does not establish causality.