Group 1 - The core viewpoint emphasizes that frequent stock trading during a bull market can lead to reduced investment returns and potential losses, as the market tends to see a general rise in stock prices [1][2] - In a rising market, holding onto well-performing stocks is more beneficial than attempting to time the market through frequent trading, which can lead to emotional decision-making and poor outcomes [2][3] - Investors should focus on long-term holding of quality stocks with stable growth and reasonable valuations, rather than being swayed by short-term market fluctuations [2][3] Group 2 - Frequent trading incurs significant transaction costs, which can exceed 30% of returns if investors trade daily, thereby reducing the probability of making a profit [2] - Long-term holding requires patience and the ability to withstand short-term market volatility, ensuring that the fundamental value of the stocks is realized over time [2][3] - Adjustments to the investment portfolio should be based on thorough research and rational judgment rather than emotional reactions, allowing for a dynamic approach to long-term holding [3]