Group 1 - The article discusses a strategy of holding onto stable state-owned enterprise stocks, such as banks and utilities, while using a portion of the investment to engage in rolling trades to capitalize on market fluctuations, suggesting that this approach can yield annual returns of 10-12% when considering both price movements and dividends [1] - The author reflects on the experience of a well-known investor who heavily invested in a single stock, which initially performed poorly but eventually recovered significantly, highlighting the potential long-term benefits of patience in stock investment [2] - There is a recognition of the psychological challenges faced by investors who see others profiting while they incur losses, leading to a preference for diversified investments to mitigate risk [3] Group 2 - The article mentions specific ETFs and mutual funds that the author considers for investment, such as the Low Volatility 100 ETF and the North Certificate 50 fund, noting their potential for safety and moderate returns [4][5] - A strategy of investing in multiple state-owned enterprise stocks is discussed, emphasizing the importance of diversification to manage risk and the challenges of holding onto investments during prolonged downturns [6][9] - The article also highlights the importance of understanding individual stocks deeply before committing to them, as demonstrated by an investor who successfully capitalized on the coal sector while others struggled [8]