Financial futures securities: Commodity securities, capital security and currency securities are broad categories of securities. Generally refers to the narrow sense of capital security. Refers to the securities generated by financial investment or activities directly related to financial investment. The holder has the right to claim a certain income from the issuer. Including stocks, bonds and their derivatives such as fund securities, futures contracts, etc. Capital security is the main form of securities, and securities in a narrow sense refer to capital security.

Voucher securities refer to documents that prove that the holder is the legal right holder of a private right and that the obligations performed by the holder are effective, such as certificates of deposit, IOUs, receipts, time deposit passbooks, etc. Voucher-type securities are actually valuable securities, and their characteristics are that although they are also certificates representing ownership, they cannot be transferred and can not exercise their rights independently as ownership certificates.