文章的核心内容主要围绕多样化驱动的大型股票需求，通过理论分析和实证检验，探讨了投资者，尤其是机构投资者，在多样化其投资组合时对大市值股票的偏好：研究发现，随着投资组合的价值集中度提高，主动管理型投资组合通常会有意识地削减重仓头寸，以维持一定水平的实际多元化。这种再平衡过程受到监管指引和基金自身风险管理历史所设定的隐性阈值的影响。由于大盘股通常在投资组合中占据较大权重，并被广泛持有，它们常常成为这种风险管理模式下协同逆向交易需求的目标。由多元化需求驱动的这种行为，在大盘股投资组合中形成了一种独特的收益反转模式。这种需求所带来的补偿效应在现代样本期（1990 年至 2022 年）中，进一步加剧了动量收益的表现。

结构性因素助力部分行业经营企稳改善，进入向上通道。尽管在 2023 年以来的宏观环境变化下，消费总体承压，但其中亦孕育着一些结构性增长因素，并支撑部分行业逐渐走出底部区间。其中，酒店板块伴随着旅游需求持续 增长及供给端增速有所放缓，行业在私人部门旅游消费需求驱动下供需走向再平衡；澳门博彩业在贵宾厅业务下滑、见底后，通过持续投入非博彩业务吸引 客流；人力资源服务则通过调整业务结构、布局新兴产业人力需求；免税则在高端消费复苏、免税新政和封关落地下迎来新的增量。

本月社服行业涨跌幅为+1.23%，其中，各细分板块涨跌幅分别为：酒 店餐饮（+8.73%），教育（+4.28%），旅游及景区（+0.11%），专业服务 （-1.54%）。1）海南离岛免税新政实施首周吸金 5.06 亿元，同比 增逾三成；2）江苏省发布《关于加快发展赛事经济提振体育休闲消费的意见》， 支持符合条件的体育企业上市。

我们认为 2026 年经济增长目标会定在 5%，明显高于《学习辅导百问》 中基于人口变化和翻番目标倒算出的“十五五”期间 4.17%平均增长要求。我们认为，4.17%的年均增速是一个理论上的“底线要求”或“平均线”，考虑到政策目标的连贯性、预留空间给宏观经济波动、产业迭代和再通胀要求，5%会是 2026 年的经济增长目标。

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market by value in this report is defined as the revenues that enterprises gain from goods and/or services sold within the specified market and geography. • Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.