金融工程动态跟踪：富国天惠精选成长混合增加D类份额，多家公募调低指数基金产品费率

• The report discusses the performance of quantitative products, including active quantitative products and quantitative hedging products[5][21] - Active quantitative products had an average return of -1.72% last week, while quantitative hedging products had an average return of 0.15%[21] - Year-to-date, active quantitative products have an average return of 3.03%, and quantitative hedging products have an average return of -2.53%[24][25] - The top-performing active quantitative fund year-to-date is Tongtai Financial Selection A with a return of 37.19%[25] - The top-performing quantitative hedging fund year-to-date is Guangda Sunshine Hedging Strategy 6-month Holding A with a return of 2.21%[25] - The top-performing enhanced index fund year-to-date is Chuangjin Hexin Beizheng 50 Component Index Enhanced A with an excess return of 26.23% relative to the benchmark[25]