In any of the following circumstances, the behavior of manipulating the securities and futures market shall be investigated: (1) The number of shares in circulation that hold or actually control the securities reaches more than 30% of the total number of shares in circulation, and the number of shares that jointly or continuously trade the securities for 20 consecutive trading days reaches more than 30% of the total turnover of the securities during the contract period; (2) individually or in collusion, the number of futures contracts held or actually controlled exceeds more than 50% of the positions stipulated in the business rules of the futures exchange, and the contracts with more than 20% of the futures contracts are jointly or continuously bought and sold within 20 consecutive trading days, or the contract futures with the total term of its own contract futures exceeds 20% or the total trading volume of each contract term exceeds 20% (the contract term of the contract futures contract exceeds 20%, Or the total trading volume of its own contract futures contract reaches more than 20% or more than 20% of the total trading volume of the contract futures, or the contract period of the contract exceeds 20%, or the futures contract continuously declares to buy or sell the same securities for more than 20% of the day, and the withdrawal declaration accounts for more than 50% of the total declared volume of the securities or the total declared volume of the futures contract on that day. (6) A listed company and its directors, supervisors, senior managers, actual controllers, controlling shareholders or other related parties, individually or in collusion with each other, use information to manipulate the trading price or trading volume of the company's shares. (7) Securities companies, securities investment consulting institutions, professional intermediaries or employees violate the relevant business prohibition regulations, buy, sell or hold relevant securities, and seek benefits in securities trading through public evaluation, prediction or investment suggestions on the securities or their issuers and listed companies, if the circumstances are serious. (eight) other serious circumstances. Article 39 of the Provisions of the Ministry of Public Security of the Supreme People's Procuratorate on the Standards for the Prosecution of Criminal Cases under the Jurisdiction of Public Security Organs (II)