Core Viewpoint - The A-share market showed mixed performance with the Shanghai 180 Growth Index declining by 0.63% to 3177.73 points, while the index has seen a slight increase of 0.87% over the past month but a decline of 1.24% over the last three months and a year-to-date decrease of 0.41% [1] Group 1: Index Performance - The Shanghai 180 Growth Index is part of a style index series that includes both growth and value indices, calculated based on growth and value factors from a sample of 60 listed companies [1] - The index has a base date of June 28, 2002, with a base point of 1000.0 [1] Group 2: Index Holdings - The top ten holdings of the Shanghai 180 Growth Index include Kweichow Moutai (10.74%), Zijin Mining (7.99%), and China Railway Shanghai (4.91%) among others [2] - The index is fully composed of stocks listed on the Shanghai Stock Exchange [2] - The industry composition of the index shows that industrials account for 21.35%, materials for 19.54%, and consumer staples for 17.34%, with technology and healthcare also represented [2] Group 3: Sample Adjustment - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [3] - The sample adjustment typically does not exceed 20%, with new samples prioritized based on their ranking [3] - In cases of delisting or corporate actions like mergers, the affected samples are removed or adjusted according to specific guidelines [3]

金融界4月21日消息，上证指数低开高走，上证180成长指数 (180成长，000028)上涨0.86%，报3171.71 点，成交额450.82亿元。 数据统计显示，上证180成长指数近一个月下跌5.77%，近三个月下跌0.32%，年至今下跌2.07%。 据了解，上证180风格指数系列以上证180指数为样本空间，根据成长因子和价值因子计算风格评分，分 别选取成长得分与价值得分最高的60只上市公司证券构成上证180成长指数与上证180价值指数。另外， 上证180成长指数与上证180价值指数分别与样本空间剩余上市公司证券组成上证180相对成长指数与上 证180相对价值指数。上证180成长指数、上证180价值指数、上证180相对成长指数与上证180相对价值 指数构成上证180风格指数系列，从风格特征的角度进一步刻画上证180指数，为投资者提供更具多元化 风险收益特征的投资标的。该指数以2002年06月28日为基日，以1000.0点为基点。 从指数持仓来看，上证180成长指数十大权重分别为：贵州茅台（10.57%）、紫金矿业（8.55%）、中 芯国际（5.02%）、京沪高铁（4.86%）、海光信息（3.99%）、药明 ...