Seoul, February 15 – Major South Korean brokerage firms achieved record earnings last year due to a strong performance in the local stock market, according to industry data released on Sunday.The combined net profit of the country's 27 securities firms is estimated to be 10.23 trillion won (US$7.03 billion) for 2025, a significant increase from the previous year's 6.97 trillion won, reports Yonhap news agency.Korea Investment & Securities Co. posted the largest net income of 2.01 trillion won last year, up 79% from a year earlier, followed by Mirae Asset Securities Co. with 1.59 trillion won in net profit.Kiwoom Investment & Securities Co. reported a net profit of 1.12 trillion won, while NH Investment & Securities Co. and Samsung...