1. Market volatility: the futures market is risky and volatile, and the price fluctuates greatly. The market is developing in a direction that is not conducive to investors' positions, so the margin of half positions can't bear the losses, which leads to the explosion of positions.

2. Risk management is not in place: when investors conduct futures trading, they do not have appropriate risk management strategies, such as setting stop-loss points and take-profit points, so unfavorable fluctuations in the market will make it easy for half positions to explode.