The so-called short position refers to the situation that the balance of settlement reserve in the investor's margin account is zero or negative, and the additional margin requirements cannot be met within the specified time, and the position is forcibly closed. When the market situation changes greatly, if most of the funds in the investor's margin account are occupied by trading margin, and the trading direction is opposite to the market trend, it is easy to explode the position because of the leverage effect of margin trading.

The occurrence of short positions is actually the result of the break of investors' capital chain. In order to avoid this situation, it is necessary to control positions in particular, manage funds reasonably, and avoid possible Man Cang operations in stock trading; And unlike stock trading, investors must track the stock index futures market in time.

If short positions lead to losses, and they are caused by investors, investors need to make up for the losses, otherwise they will face legal recourse.