The story
The Korea Exchange was created through the integration of Korea Stock Exchange (KSE), Korea Futures Exchange and KOSDAQ Stock Market under the Korea Stock & Futures Exchange Act. The securities and derivatives markets of former exchanges are now business divisions of Korea Exchange: the Stock Market Division, KOSDAQ Market Division and Derivatives Market Division. As of December 2020, Korea Exchange had 2,409 listed companies with a combined market capitalization of ₩2.3 quadrillion KRW (US$2.1 trillion). The exchange has normal trading sessions from 09:00 am to 03:30 pm on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.
On 22 May 2015, the Korea Exchange joined the United Nations Sustainable Stock Exchanges initiative in an event with the UN-SG Ban Ki-moon in attendance, as well as senior officials from UN Global Compact and UNCTAD.
On 10 April 2025, the KOSPI and KOSDAQ soared when President Donald Trump announced that he would suspend the mutual tariffs. In response, the Korea Exchange triggered a buy sidecar for the KOSPI market at 09:06 a.m. for the first time in eight months.
In April 2025, the Korea Exchange signed a contract with the Thai Stock Exchange to supply the system for liquidation and settlement. A source at the exchange said it expects the deal to further strengthen the position of the Korean stock market infrastructure in Southeast Asia. In June 2026, South Korea became the sixth largest stock market in the world in terms of market capitalisation.
Starting from 14 September 2026, the Korea Exchange extended trading hours on the KOSPI and KOSDAQ for four hours from 04:00 p.m. to 08:00 p.m. This followed the regular trading hours of 09:00 a.m. to 03:30 p.m.
From Wikipedia’s article on Korea Exchange, shared under CC BY-SA 4.0.5