#美国非农就业数据未达市场预期 The liquidation logic in contract trading really needs to be well understood. I once encountered something outrageous — when shorting, the opening price was 0.007875, and the liquidation price was set at 0.007980. At that time, the mark price dropped to 0.007850, and by calculation, my floating profit should have been around 16%. But just a few seconds before I was about to close the position, the liquidation was triggered. Customer service later explained that because the transaction price was relatively "ideal," after deducting the liquidation loss from my over $50,000 principal, they left me with a profit of $9,000. Sounds like I made a profit? But the problem is — the gap between the mark price and the actual transaction price unexpectedly became the trigger for my liquidation. The most exaggerated part is that later, the price even spiked back to the level I wanted to close at, just a few seconds too late. The position with a 16% floating profit was ultimately completely wiped out by the liquidation mechanism. The matching logic and time lag behind this are definitely worth traders reflecting on. Risk management in contract trading, sometimes just looking at the numbers isn't enough.