Korea Exchange (KRX) is South Korea's sole exchange operator, running the country's stock, bond, and derivatives markets under one umbrella. It operates KOSPI, the main board for large-cap companies and home of the KOSPI 200 benchmark index, KOSDAQ, a market for technology and growth companies, and KONEX, a board for early-stage and small-cap firms, alongside a derivatives market trading equity index, interest rate, currency, and commodity futures and options. The exchange was formed on January 27, 2005, through the merger of the Korea Stock Exchange (KSE, founded 1956), the KOSDAQ market, and the Korea Futures Exchange (KOFEX, founded 1999), consolidating what had been separate cash and derivatives venues into a single listing, trading, clearing, and settlement operator. As the only licensed securities exchange in South Korea, KRX has no domestic competitor for cash equities or listed derivatives; its rivalry is instead with other Asian exchanges for regional listings and order flow. Its KOSPI 200 futures and options have historically ranked among the most heavily traded equity index derivatives worldwide, and the exchange was the world's busiest by contract volume from 2009 to 2011, a legacy of Korea's unusually large retail options trading base. KRX is headquartered in Busan, a government decision to relocate financial institutions outside Seoul, while keeping a Seoul office for cash-market operations. It is regulated by South Korea's Financial Services Commission and remains a non-listed, government-linked entity; the FSC has proposed restructuring KRX into a holding company that would spin off KOSPI, KOSDAQ, and the derivatives market into subsidiaries and eventually list the holding company, though this is a longer-term plan rather than a completed listing. KRX is led by CEO and chairman Jeong Eun-bo, a former governor of the Financial Supervisory Service and a career Ministry of Strategy and Finance official, who has made addressing the Korea Discount, the market's persistent valuation gap against global peers, a central focus. Since May 2024 the exchange has administered the government's Corporate Value-Up Program, publishing disclosure guidelines on metrics such as price-to-book ratio, return on equity, and dividend payout ratio, and in September 2024 it launched the Korea Value-Up Index, a 100-company benchmark of 67 KOSPI and 33 KOSDAQ firms selected on profitability, shareholder returns, and valuation criteria, now used as the basis for index-linked ETFs. As of December 2025 the KOSPI market alone listed 847 companies with a combined market capitalization of roughly 3,478 trillion won, about 2.4 trillion dollars, with KOSDAQ and KONEX listings on top of that. In June 2026, South Korea's listed market overtook India's to become the world's sixth-largest by capitalization, with combined market value near 5 trillion dollars after an 86 percent year-to-date surge driven by Samsung Electronics and SK Hynix, both AI memory chip suppliers that crossed 1 trillion dollars in valuation; the KOSPI index itself gained more than 100 percent over the same period.
