KOSPI Companies Report 175% Increase in Operating Profit, Excluding Samsung and SK Hynix

by Younsun Choi Posted : May 19, 2026, 17:15Updated : May 19, 2026, 17:15
A view of the KRX Korea Exchange located in Yeouido, Seoul.
A view of the KRX Korea Exchange located in Yeouido, Seoul. [Photo by Yoo Dae-gil]

This year, the KOSPI index has risen by 74%, driven by ample liquidity and the so-called "Samsung and SK Hynix effect." This trend is reflected in the earnings of KOSPI-listed companies. In the first quarter, the operating profit of KOSPI-listed companies increased by 175% compared to the same period last year. However, excluding Samsung Electronics and SK Hynix, the increase was only about 2%.

According to the Korea Exchange's report on the first-quarter earnings of December fiscal year-end companies, the consolidated operating profit of 639 listed companies reached 156.3194 trillion won, marking a 175.83% increase year-on-year. Revenue was 927.5409 trillion won, and net profit rose by 141.4436 trillion won, reflecting increases of 19.49% and 177.82%, respectively. The consolidated operating profit margin improved to 16.85%, up 9.55 percentage points from the previous year, while the net profit margin rose to 15.25%, an increase of 8.69 percentage points.

Samsung Electronics and SK Hynix continued to dominate, with their first-quarter revenue at 157 trillion won and operating profit at 84 trillion won, accounting for 31.73% of total revenue and 77% of operating profit. Excluding these two companies, the remaining listed firms saw revenue and operating profit increase by 2.36% and 2.05%, respectively. Among various sectors, 12 industries, including electronics and non-metallic minerals, reported increased operating profits, while eight sectors, including entertainment and culture, and paper and wood, experienced declines.

The debt ratio of KOSPI-listed companies was 108.74%, a decrease of 1.64 percentage points compared to the end of last year. Among the 639 companies analyzed based on consolidated financial statements, 504 reported net profits, a 3.60% increase from the previous year.

In the KOSDAQ market, six out of ten listed companies reported profits, with significant increases in operating and net profits. According to the Korea Exchange, the combined operating profit of 1,273 KOSDAQ companies reached 4.1284 trillion won, up 78.17% year-on-year. Revenue increased by 21.72% to 84.9461 trillion won, while net profit surged by 171.22% to 4.4342 trillion won. The operating profit margin and net profit margin improved to 4.86% and 5.22%, respectively, up 1.54 percentage points and 2.88 percentage points from the previous year. The debt ratio for the first quarter was 122.03%, an increase of 9.23 percentage points compared to the end of last year.





* This article has been translated by AI.