Personally, I like to allocate a specific amount to invest in stocks and that amount is constantly cycled within the stock market.
Selling a stock is related to why you bought the stock in the first place, whether it was for short-term speculation or long-term investment, both of which depend on information and data. The stocks I own for short-term speculation depend on my method of analyzing historical data and the movement of the stock. In other words, I create a cycle for the stock price within a period of 15 days, so that I buy at a certain point, then sell at a point that I previously determined, and buy back again at a certain low point that I previously determined. Of course, it is not possible here to overlook the market dynamics that may sometimes affect the decision to sell at the point that you specified in advance. Thus the market information about the position may affect the stock price movement cycle being tracked.
In the case of long-term investments, the main determinants for me are the financial performance of the company, the extent of its development, and the rates of profit distribution. I draw a curve for buying and selling that extends over a period of 6 months, where selling takes place at a certain point and buying back again takes place at a certain point.
Selling in order to stop losses takes place immediately at the current market price without waiting, as long as the indicators, information, and data indicate that the company is in a downward trend in the short and long term. If the decline is general for the market as a whole, it is better to hold on to your stock and wait.
Finally, selling for an alternative opportunity. Here the decision to sell needs careful analysis of the alternative opportunity and the expected profits from it, comparing it to the future of the current stock you hold, calculating the possible return of the alternative opportunity, and then making a decision to sell at the market price.
This was not written by Thndr and this is not investment advice, you should do your own research before making investment decisions.