For traders, a bull market has not reached its end, and the core position should never be lost no matter what. The core position is a trader's bottom line; it ensures that you have the courage to chase the trend next time. For example, if something worth 1 yuan rises to 10 yuan, and the trend and logic continue to indicate an upward movement, if you take profits on the left side, you can only offload the leveraged and fluctuating portion of your position. Never lose your core position. If next time you encounter a buying pattern at 11 or 12 yuan, if you still have your core position, it will be very easy for you to chase it. However, if your core position is gone, you might end up in a trading dilemma. Having been through it, you understand.