Recently, there have been too many knockoff pig killing stocks. Looking at ZKJ, I feel confused about a few offline stocks, which reminds me of my biggest loss, SATS, which was also poured down by several stocks. Under the full warehouse mode, the margin was not enough to deduct, resulting in a significant loss. Now that the knockoff is one-sided, I have switched to a warehouse by warehouse model, and even if I pour it out, I will only lose the margin. A market lacking liquidity has to take precautions, as in a full position model, if any knockoff falls and closes the position, it will be too late or even all margin will be lost.