Core Viewpoint - Index rebalancing is a process that ensures the vitality of indices by removing stocks that do not meet criteria and adding new ones, which can lead to changes in stock valuations and investor strategies [3][5][6]. Group 1: Index Rebalancing Process - Index rebalancing is akin to a metabolic process, ensuring that indices remain representative and investable [4]. - There are two main types of index rebalancing: temporary adjustments due to special events and regular adjustments based on sample stability [7][9]. - Regular rebalancing occurs at different frequencies, such as quarterly, semi-annually, or annually, depending on the index [14][15]. Group 2: Impact on Valuations - The recent rebalancing on June 13 affected various indices, with changes in the number of stocks and their average price-to-earnings (P/E) and price-to-book (P/B) ratios [20][18]. - For instance, the Shanghai-Shenzhen 300 Index saw a decrease in P/E and a slight increase in P/B after adjusting 7 stocks [23]. - The CSI 500 Index experienced an increase in both P/E and P/B after replacing 50 stocks [24]. Group 3: Strategy Indices - Strategy indices, such as the CSI A500 and value strategies, often see different valuation impacts compared to market-cap weighted indices [30][32]. - The CSI A500 Index's recent rebalancing led to a decrease in P/E and a slight increase in P/B [31]. - The 300 Value Index typically sees a decrease in valuation metrics due to its focus on low P/E and P/B stocks [32]. Group 4: Market Behavior and Investor Strategies - Market-cap weighted indices can lead to a "buy high, sell low" scenario, as stocks that rise in value are included while those that fall are excluded [43]. - This phenomenon has historical precedence in markets like the U.S. during the tech bubble, where high-flying stocks were included in indices, leading to greater declines when the bubble burst [45]. - To mitigate these effects, investors may consider strategy indices that do not rely on market capitalization, thus avoiding the pitfalls of chasing high valuations [47][51].

Core Viewpoint - The article presents an index map that includes various commonly used stock indices, their codes, selection rules, industry distribution, average and median market capitalization of constituent stocks, and the number of constituent stocks, which will be regularly updated for easy reference [1][4]. Group 1: Index Overview - The index map includes several categories of stock indices such as broad-based indices, strategy indices, industry indices, thematic indices, and overseas indices [4]. - Key broad-based indices in the A-share market include the CSI series indices like CSI 300, CSI 500, CSI 800, and CSI All Share, which are selected based on the market capitalization of listed companies and cover stocks from various industries [8]. Group 2: Index Details - The CSI 300 index consists of the 300 largest and most liquid A-shares listed on the Shanghai and Shenzhen stock exchanges, with an average market capitalization of 177,899 million and a median of 851.80 million [3]. - The CSI 500 index includes 500 stocks ranked from 301 to 800 in terms of market capitalization, with an average market capitalization of 263.02 million and a median of 241.01 million [3]. - The CSI 800 index covers 800 stocks, while the CSI 1000 index includes 1000 stocks, with respective average market capitalizations of 831.51 million and 121.62 million [3]. - The Shanghai Stock Exchange 50 index is composed of the 50 most representative stocks from the Shanghai market, reflecting the performance of leading companies, with an average market capitalization of 5,084.82 million [3]. - The Shenzhen Component Index selects 500 large and liquid companies from the Shenzhen market, with an average market capitalization of 430.20 million [3]. Group 3: Industry and Thematic Indices - The article lists various thematic indices such as the Consumption Index, which selects major consumer industry stocks from the CSI 800 index, with an average market capitalization of 1,255.44 million [6]. - The Healthcare Index includes 100 large-cap stocks in the healthcare sector, with an average market capitalization of 399.02 million [6]. - The Technology Index reflects the performance of 50 leading technology companies, with an average market capitalization of 439.71 million [6].

文 | 银行螺丝钉 （转载请注明出处） 我们常见的指数策略主要有六种：龙头、红利、价值、低波动、成长、质量。 有朋友问，这些策略都是啥意思，有什么特点？ 这六大策略在A股有效吗？我们该如何配置不同的策略指数呢？ 针对大家的这些疑问，螺丝钉也通过直播课，进行了讲解。 长按识别下面二维码，添加 @课程小助手 微信，回复「 1119 」即可观看直播回放。 （提示：回复后可以耐心等待几秒哦～） 市值选股指数的缺点：追涨杀跌 沪深300等指数，是按照上市公司的市值规模大小，来挑选股票。 这就会导致指数追涨杀跌： · 涨得多的股票 → 市值变大 → 调仓时被纳入； · 跌得多的股票 → 市值变小 → 调仓时被剔除。 其实这个情况倒不是在沪深300上先出现。 在上世纪90年代美股牛市的时候，在标普500、纳斯达克100等指数上就遇到了类似问题。 当时是互联网泡沫，很多股票跟互联网沾边就大涨，市值很高。 在上涨后，被纳入到纳斯达克100等指数中。 导致之后互联网泡沫破裂，纳斯达克100下跌反而更多。 所以早在沪深300诞生之前，海外的市值选股指数就遇到过类似的情况了。 不过这种情况熊市影响不大，主要是牛市中后期影响大一些。 ...

文 | 银行螺丝钉 （转载请注明出处） 一、【直播回放】 有朋友问，中证A50指数，有啥特点，当前估值如何？ 第一类是宽基指数。 通常是按照上市公司的市值规模来选股的，会包含各个行业的股票，覆盖范围很"宽"。 有哪些指数基金可以选择呢？中证A50和A100、A500以及MSCI A50有啥区别？ 在今晚的直播课里，螺丝钉详细介绍了这些问题。 长按识别下面二维码，添加 @课程小助手 微信，回复「 0314 」即可观看直播回放。 （提示：回复后可以耐心等待几秒哦～） 二、【部分直播课内容如下】 1 . A股常见的四类指数 A股常见的指数，主要分为四类。 第二类是策略指数。 通常是在宽基指数的基础上，用了某一种投资策略，覆盖的行业也会比较广泛。 策略指数丰富了我们投资的选项，满足了很多投资者个性化的需求。 第三类是行业指数。 也就是仅覆盖了某个行业的股票，例如消费、医药、金融等。最常见的行业指数，是11个一级行业。 每个一级行业，其实都是社会不可或缺的一部分，长期也是跟着社会发展的。 第四类是主题指数。 所包含的股票，跟某个主题密切相关，例如科技、新能源、人工智能等。 主题指数，通常会横跨多个行业，但达不到宽基指数 ...

有朋友问， 自由现金流指数是什么，有啥特征？和红利、价值指数有哪些区别呢？ 富时、国证、中证自由现金流指数有啥区别？当前估值如何呢？ 在今晚的直播课里，螺丝钉详细介绍了这些问题。 文 | 银行螺丝钉 （转载请注明出处） 一、【直播回放】 最近新出来了自由现金流指数。 长按识别下面二维码，添加 @课程小助手 微信，回复「 0311 」即可观看直播回放。 （提示：回复后可以耐心等待几秒哦～） 二、【部分直播课内容如下】 1. A股常见的四类指数 A股常见的指数，主要分为四类。 第一类是宽基指数。 通常是按照上市公司的市值规模来选股的，会包含各个行业的股票，覆盖范围很"宽"。 第二类是策略指数。 通常是在宽基指数的基础上，用了某一种投资策略，覆盖的行业也会比较广泛。 策略指数丰富了我们投资的选项，满足了很多投资者个性化的需求。 第三类是行业指数。 也就是仅覆盖了某个行业的股票，例如消费、医药、金融等。最常见的行业指数，是11个一级行业。 每个一级行业，其实都是社会不可或缺的一部分，长期也是跟着社会发展的。 第四类是主题指数。 所包含的股票，跟某个主题密切相关，例如科技、新能源、人工智能等。 主题指数，通常会横跨多个 ...