South Korean securities firms make 4 trillion Korean won in first quarter, banks restrict borrowing for stock trading According to a report by Golden Finance, on June 12th, according to the "2026 First Quarter Business Performance of Securities and Futures Companies (Provisional)" released by the South Korean Financial Supervisory Agency, 61 securities companies in South Korea achieved a net profit of 4.33 trillion Korean won (approximately 19.268 billion yuan) in the first quarter of this year, an increase of 77.1% compared to the same period last year and an increase of 132.6% compared to the previous quarter. In 2025, the net profit of South Korean securities companies was KRW 965 trillion (approximately RMB 42.943 billion), and the net profit in the first quarter of 2026 has reached 44.9% of last year's net profit, nearly half. Korean stock investors have started borrowing money to invest in stocks. Recently, with the drastic adjustment of Korea's KOSPI (Korea Composite Index), the overdraft account balance of the country's major commercial banks has increased by over 600 billion Korean won (about 2.67 billion yuan). In order to prevent the surge of "borrowing money to speculate in stocks", Korean banks are tightening credit loans.