上证能源红利指数下跌0.71%，前十大权重包含中国神华等

Group 1 - The Shanghai Energy Dividend Index (H50021) opened lower but closed higher, down 0.71% at 4181.54 points with a trading volume of 3.415 billion yuan [1] - The Shanghai Energy Dividend Index has decreased by 2.87% over the past month, 7.36% over the past three months, and 14.54% year-to-date [2] - The index is composed entirely of the energy sector, with a 100% weight in the Shanghai Stock Exchange [3][4] Group 2 - The index is adjusted annually, with changes implemented on the next trading day after the second Friday of December [4] - A buffer zone is set for dividend conditions, allowing samples with a cash dividend yield greater than 0.5% to be exempt from certain requirements [4] - The adjustment ratio is generally limited to 20%, unless significant changes occur in the industry or if more than 20% of samples are removed due to low dividend yields [4]