According to Article 31 of the Provisions of the Supreme People's Court on Several Issues Concerning the Trial of Futures Dispute Cases, if a futures exchange allows a futures company to open or continue to hold positions without margin or insufficient margin, it shall be deemed as an overdraft transaction. Where a futures company allows customers to open positions or continue to hold positions without or with insufficient margin, it shall be deemed as an overdraft transaction. When examining whether a futures company or a customer overdraws, it shall take the margin ratio stipulated by the futures exchange as the standard.