There are two kinds of jiacang, one is based on technology and the other is based on fund management. Technical jiacang is executed again at the second signal, and the stop loss is also a separate stop loss. The fund management is based on packaging the whole position after adding the position, and there is no risk of going out in the most unfavorable situation. I think most people will choose category 2, and the real jiacang is to expand their positions without risk. If the risk is multiplied by adding positions, it is better to enlarge the positions at the beginning, so the cost will be lower.

In fact, risk-free jiacang is concerned with a problem. After adding positions, I will go out (stop loss or profit out) according to the situation of not adding positions. What's my risk? To put it bluntly, the market will go backwards after I increase my position, which will lead me out. How much will I lose? When you think about this problem clearly, you can list two equations to calculate the critical point of adding positions, one is when to add positions, and the other is how much to add positions (based on a percentage of the initial positions).

A little more, the positions of pyramids, inverted pyramids and diamonds in the book are too metaphysical. From the perspective of risk, the most essential thing is to manage risk. Actually, you can add anything you want. Some people break through, others like to add back. The key is to ask yourself, if you add it, you will be wrong immediately. How risky am I? Can you stand it? Is it against your financial management?