# RIVER/USDT Perpetual Contract Trading - Significant Deviation Between Mark Price and Latest Trade Price

During RIVER/USDT perpetual contract trading, I encountered a severe deviation between the mark price and the latest trade price, with the discrepancy far exceeding normal market fluctuation ranges. My position was ultimately liquidated, resulting in a total loss of principal. Trading screenshots document the entire process, and the price differences are so extreme they're shocking. Such extreme situations are difficult to explain as mere market volatility—they suggest possible loopholes in the platform's risk management mechanism or potential artificial manipulation. User rights have been severely compromised, and market fairness has become meaningless. This incident at a leading platform warrants vigilance across the entire industry regarding transparency in risk management systems and price mechanisms, as these directly affect every trader's fund safety.