Group 1 - The MACD indicator is a commonly used and important technical indicator that can be utilized to construct effective trend investment strategies based on a thorough understanding of its calculation, parameter determination, advantages, disadvantages, and general application principles [1][4][8] - The single indicator strategy M aims to enhance the sensitivity of MACD signals by reducing its parameters, addressing the lagging response of the MACD indicator [1][15] - Backtesting over 20 years shows that the annual compound return of strategy M is 15.2192%, with an alpha of 7.1007, a beta of 1.8746 (Rf≈3), a maximum drawdown of 29.91%, and a Sharpe ratio of 4.1627, indicating excellent performance [1][18] Group 2 - The indicator combination strategy ME improves the strategy's win rate and reduces maximum drawdown by adding entry filters to address the MACD indicator's poor performance in small trends or consolidations [1][24] - Backtesting results indicate that the annual compound return of strategy ME is 16.9347%, with an alpha of 8.7466, a beta of 2.0682 (Rf≈3), a maximum drawdown of 20.01%, and a Sharpe ratio of 5.3435, also demonstrating excellent performance [1][26] Group 3 - A comparison between the single indicator strategy M and the indicator combination strategy ME shows that the former has a higher annual compound return, while the latter has a smaller maximum drawdown, allowing investors to choose based on their investment preferences [2][30] - Both strategies have been backtested on various indices, revealing significant performance differences across different indices, suggesting the need for further backtesting before application to other indices [30]