The skills and ability to grasp the time trend of opening positions on the left side are relatively high, because there may be some floating losses at the beginning, and the requirements for psychological quality are also relatively high. However, due to the long opening period (the whole bottom area is in the process of opening positions), there is enough time and small-band opportunities in the middle to reduce the cost, so the cost of opening positions on the left side is lower than that on the right side, which is why most institutions and value investors adopt the way of opening positions on the left side. The opening of positions on the right side started after the lowest point in the space, with less psychological pressure, relatively safe appearance and lower technical requirements. The chasing of small and medium-sized investors belongs to this category, but the cost of opening positions on the right side will be much higher than that on the left.

Although using the left position and bottom as the region, the probability of success is much higher than catching the shadow of the lowest point, but it does not mean that the bottom region is correct every time. Therefore, we think that this regional judgment method only improves the correctness of the bottom judgment, can reduce the systemic risk of buying, and obtain the shares of the investment target company at a cheaper price, but this is not all. If you think you can always choose a stock at will by judging the bottom area of the market. Judging the market trend and bottom can only be a skill at best. What can give us is to expand profits and returns, not the strategy or tactics we rely on. The only thing that value investors can rely on is to choose excellent enterprises.

In the rhythm control of positions, small and medium investors usually think that they have less money and buy stocks that they think are suitable; In fact, there is no direct relationship between risk and the amount of funds, and the market risks borne by large and small funds are the same. Even if the funds are small, the risk tolerance of the original accumulation is weak, and more attention should be paid to risk control. Even in our operation, we hold this cautious and equal attitude towards customers with different amounts of funds.