Timing of replenishment: Generally speaking, when the overall market or individual stocks bottom out, the stock price will quickly rise or even hit the limit due to the strong intervention of bottom fishing funds. As the market is in an uncertain period, the desire to profit and realize funds is strong. In the following period, investors will inevitably be suppressed by profit taking orders. Investors can exit when the stock price encounters obstacles or technical adjustments, patiently wait for the adjustment to end, and then buy back at low prices, sell high and buy low, and move back and forth in the wave. Replenishment varieties: In any rebound or upward trend, the biggest opportunity belongs to strong stocks. Replenishment funds must not rush into unpopular stocks, weak stocks, or stagnant stocks with a straight line on the technical chart. During the continuous decline of the stock market, there are numerous and huge funds trapped, and the pressure of trapped stocks is significant. This factor must be considered in the replenishment operation. As new stocks do not have such pressure, their stock prices recover faster than old stocks. The following situations are not suitable for bottom fishing: When the market rebounds to a certain resistance level, the trading volume has not effectively increased, and attention should be paid at this time. When the stock index falls below the bottom, be resolute in stopping losses and exiting. 2. It is not suitable to rush for a rebound when there is a large volume of decline. When the stock index is sideways or bearish in a certain region, a sudden increase in volume and decline indicates that the stock index is about to plummet and will fall out of a certain space. After being eliminated, it is not easy to enter the market. When unsure, do not rush to rebound. When the stock index fluctuates violently, grabbing a rebound is just a short-term investment behavior. Generally speaking, it requires a good investment mentality, sufficient stock knowledge, and decisive decision-making.