A: The crime of manipulating the securities and futures market was originally a crime of manipulating the price of securities and futures trading, and it was changed to this crime according to the Criminal Law Amendment (VI), and the crime was greatly revised. The object of this crime is the national securities management system and the legitimate rights and interests of investors. This crime is objectively manifested as manipulating the securities and futures market. The specific acts are: (1) manipulating the trading price or volume of securities and futures by concentrating capital advantages, holding shares or positions, or using information advantages to jointly or continuously buy and sell; (2) colluding with others to trade securities and futures with each other at the time, price and manner agreed in advance, which affects the trading price or volume of securities and futures; (3) Trading securities between accounts under its actual control, or buying and selling futures contracts on its own, which affects the trading price or volume of securities and futures; (4) manipulating the securities and futures markets by other means. The subject of this crime is the general subject, and the unit can also constitute this crime. Subjectively, this crime can only be constituted by intention. Originally, there was a requirement for the purpose of obtaining illegitimate interests or transferring risks, but the sixth amendment to the Criminal Law cancelled this purpose.