When the user’s holding position is in level 2 or below, and the margin rate is lower than the required maintenance margin rate and closing procedure rate for this level; When the user’s holding position is in level 3 or above, but the margin ratio is lower than the required margin ratio and closing procedure rate for level 1, the system will directly entrust all the positions under the contract (full position situation)/position (position by position situation) to the Strong Ping Engine based on the bankruptcy price (price with zero margin ratio). This early strong leveling mechanism is mainly aimed at avoiding the adverse effects caused by the violent fluctuations of digital currencies, which can lead to consecutive strong leveling and short positions (positions after strong leveling cannot be traded).