每日钉一下（投资，如何获得估值回归的收益？）

Group 1 - The article emphasizes the importance of diversifying investments across different asset classes, including both RMB and foreign currency assets, as well as stocks and bonds [2] - It highlights the significance of USD bond funds as a crucial component in investment strategies [2] - A free course is offered to provide systematic knowledge on investing in USD bond funds, along with supplementary materials like course notes and mind maps for efficient learning [2] Group 2 - The article discusses the concept of "valuation reversion," where different investment styles (large, mid, small caps, growth/value) exhibit tendencies to revert to their historical valuation levels [5] - It notes that styles previously at high valuation levels tend to decline, while those at low levels are likely to experience future increases [5] - The article suggests that while predicting the exact timing of these reversals is challenging, investors can still make informed decisions based on valuation levels [5][6] Group 3 - Recommendations for investment strategies include diversifying across different styles of undervalued assets to benefit from potential future increases in any of these styles [6] - Adjusting the proportion of different styles based on their valuation levels is also advised to optimize investment returns [6]