Providing and updating of stock index; providing and updating of securities index; providing information about stock index; providing information about securities index; investment trust services; subscription, offering, brokerage, management of investment trust services, and consulting related thereto; underwriting of investment trust services; buying and selling of securities; Trading of securities index futures; Trading of securities options; Trading of overseas market securities futures; agencies for brokerage of securities, securities index futures, securities options, and overseas market securities futures; agencies for brokerage of entrusting agents with on-commission trading in domestic markets of securities, securities index futures and securities options; agencies for brokerage of entrusting agents with on-commission trading in overseas markets of securities and securities index futures; agencies for brokerage of forward agreement of securities, for forward agreement of securities index futures, for forward agreement of securities options, spot and forward transaction of securities index futures; brokerage for securities liquidation; securities underwriting; securities offering; brokerage services relating to securities subscription or offering; providing stock market information.