The Korea Securities Depository (KSD) is a financial institution in South Korea that plays a crucial role in the securities market. It is responsible for the safe custody and management of securities, ensuring that transactions are processed efficiently and securely. KSD also provides services such as clearing and settlement, which help facilitate the buying and selling of stocks and bonds. In addition to its core functions, the KSD offers various services to enhance market efficiency, including electronic registration of securities and data management. By maintaining a centralized system, the KSD helps reduce risks associated with trading and promotes investor confidence in the South Korean financial market.