每日钉一下（为什么说分散配置，是投资中“免费的午餐”？）

Group 1 - The article emphasizes that funds are suitable investment options for ordinary people [1] - It discusses the importance of diversified allocation in investment, referring to it as a "free lunch" in investing [3][4] - The article highlights the concept of portfolio theory introduced by Markowitz, which states that diversification can reduce risk [6][10] Group 2 - Diversified allocation can lower investment volatility risk while potentially not reducing returns, especially when combined with rebalancing [6][7] - An example is provided where a diversified allocation of the CSI A500 and CSI Dividend (each at 50%) with annual rebalancing yields higher returns and lower volatility compared to the CSI 300 [6] - The article mentions that Markowitz's theory laid the foundation for the emergence of index funds, which typically diversify across dozens or even hundreds of stocks [10] Group 3 - The company's advisory portfolio applies the principle of diversified allocation, combining different styles such as growth and value, and adjusting allocations based on relative valuations [11] - Since its launch, the advisory portfolio has achieved returns exceeding the market index while maintaining lower volatility risk [11]