《定投大爆料》第7期：进阶策略，让你的定投更高效

Group 1 - The article focuses on promoting the concept of systematic investment plans (SIPs) and their long-term value in index investing [2] - It highlights the collaboration between the Shenzhen Stock Exchange and CICC Wealth Securities to educate investors through a series of videos titled "Investment Plan Explosion" [2] - The seventh episode of the series aims to provide advanced strategies for SIPs [2]