#预测市场争议 Why set a stop-loss:

A stop-loss is a trader's "lifeline." Its primary function is to control individual losses and prevent emotional interference from causing unlimited losses. The market is full of uncertainties; any analysis can be wrong. Essentially, a stop-loss is a pricing of risk—using an acceptable small loss to gain the right to seize opportunities. It can protect your principal from being wiped out and prevent complete elimination due to a single mistake. Remember: only by staying alive can you have the qualification to talk about profits. Trading without a stop-loss is like driving at full speed without brakes. If you don't accept a stop-loss, don't trade.