上证180相对成长指数下跌0.5%，前十大权重包含万华化学等

Core Viewpoint - The Shanghai Stock Exchange 180 Relative Growth Index has experienced a decline, reflecting broader market trends and sector performance [1][2]. Group 1: Index Performance - The Shanghai 180 Relative Growth Index fell by 0.5% to 2063.02 points, with a trading volume of 108.69 billion yuan [1]. - Over the past month, the index has decreased by 0.05%, by 2.31% over the last three months, and by 1.05% year-to-date [1]. Group 2: Index Composition - The top ten holdings of the Shanghai 180 Relative Growth Index include Kweichow Moutai (10.05%), Zijin Mining (5.34%), and China Yangtze Power (3.31%) [2]. - The index is entirely composed of stocks listed on the Shanghai Stock Exchange, with industrials (18.25%), information technology (17.60%), and consumer staples (17.40%) being the largest sectors represented [2]. Group 3: Index Adjustment Mechanism - The index samples are adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December [3]. - New samples are prioritized based on their ranking, with a maximum adjustment ratio of 20% for the Shanghai 180 Growth and Value Indices [3].