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Even if there is still some money, which one do you add in the face of so many positions? If you are really given a chance to increase your position by a big drop, you can't achieve the purpose of spreading the cost at all with what little money you have left. Don't say it doesn't make sense to reduce the cost of the whole account, even for the stock you added, it doesn't help much.If you want to control the smoothness of the overall account, the position can be appropriately small, such as a medium position, and some funds can be reserved for better opportunities. In this way, you can attack and defend. You expect to go up, but you are not afraid of going down, because you are still a potential buyer, and you can do it more easily.At the late stage of investment, when your understanding of investment and the logic of stock market operation are very clear, you will take the initiative if you are few but fine, and you no longer need to forcibly control your behavior. At that time, you will naturally choose only those pearls in the crown.

If you buy everything, even if you don't buy a lot of shares, it will cost a lot of money together. The downside is that when the market plummeted, the funds you could have gradually increased your positions are now taken up and gone.Even if there is still some money, which one do you add in the face of so many positions? If you are really given a chance to increase your position by a big drop, you can't achieve the purpose of spreading the cost at all with what little money you have left. Don't say it doesn't make sense to reduce the cost of the whole account, even for the stock you added, it doesn't help much.

At the beginning, the granularity research is coarse, it doesn't matter, and it is slowly eliminated. For example, you can screen by industry, then remove some according to business model, and then remove some according to assets and liabilities, etc. In each round of screening, only the best ones are retained and the poor ones are removed.If you are wrong, because your position is small and the loss of a single stock is relatively small, it is easy for you to cut your meat, because you don't feel bad, but if many stocks cut their meat like this, it will be a lot of money, and it will be a big loss.In the early stage of investment, few but fine are passive and need your control. Although you don't know what's right yet, you already know what's wrong, so it will be hard to control your behavior with willpower, which is certain and insurmountable.