Group 1 - The core concept of fund advisory is to address the issue where funds make profits, but investors do not [4] - Fund advisory services aim to help investors achieve better returns through professional guidance [5] - The article highlights the importance of diversification in investment to effectively reduce volatility risk [10] Group 2 - Research by overseas investment expert Burton Malkiel indicates that the number of stocks held is related to the volatility risk [12] - Investing in only two stocks can lead to a volatility risk that is 2-3 times higher than the overall market risk [13] - Increasing the number of stocks to 20 reduces the risk to about one-third to two-thirds higher than the market risk [14] - Holding 50 stocks aligns the risk with the overall market risk, as seen in major indices like the SSE 50 and STAR Market 50 [15] - Beyond 50 stocks, the reduction in risk becomes marginal, with indices like CSI 300 and CSI 500 reflecting the market's inherent risk [16] - It is recommended to diversify across different industries to enhance risk reduction [16][17] Group 3 - For actively managed funds, the number of heavily weighted stocks typically ranges from 10 to 20, resulting in a risk that is one-third to two-thirds higher than the market [19] - However, investing in a diversified basket of funds can lead to a lower volatility risk compared to the market, with underlying stocks numbering around 100 [19]