2025 年二季度，美股市场机构持仓再现显著调整。摩根士丹利最新 13F 分析报告显示，投资者在科 技、工业和通信服务板块持续加仓，同时减持医疗、金融和必需消费板块。对冲基金的持仓策略尤为亮 眼：不仅延续了对科技股的低配态势，还对小盘医疗股表现出强烈偏好。此外，美国本土基金在标普 500 指数中的主导地位进一步巩固，占比高达 81%。 行业配置：科技领衔增持，医疗遭减持 二季度，机构投资者对行业配置进行了明显调整。科技板块增持幅度达 1.9%，工业和通信服务板块分 别增持 0.6%，成为三大赢家;而医疗板块减持 1.3%，金融和必需消费板块各减持 0.7%，共同构成减持 主力 。 从主动权重(13F 报告中行业配置占比减去标普 500 指数行业权重)来看，多数板块的持仓变化与指数表 现基本同步，这一趋势在全市场和对冲基金中均保持一致 。 值得注意的是，大盘股中的可选消费板块出现分化：对冲基金主动增持 0.6%，与整体市场减持 0.3% 的 操作形成鲜明对比，显示出对冲基金对该领域的独特判断。 小盘股动向：科技与可选消费成新宠 小盘股市场的持仓调整更为激进。科技板块增持 2.3%，可选消费板块增持 0.9%，成 ...

Group 1 - The core viewpoint of the article indicates a significant adjustment in institutional holdings in the U.S. stock market during Q2 2025, with increased allocations in technology, industrials, and communication services, while reducing positions in healthcare, financials, and consumer staples [1][2][31] - Institutional investors increased their holdings in the technology sector by 1.9%, while healthcare saw a reduction of 1.3%, and financials and consumer staples each decreased by 0.7% [2][31] - Hedge funds displayed a notable preference for small-cap healthcare stocks, with their allocation in this sector reaching 28%, compared to only 10% in the Russell 2000 index [14][31] Group 2 - The report highlights that U.S. domestic funds dominate the S&P 500 index, holding 81% of the total, while funds from Europe, the Middle East, and Africa account for 16%, and Asia-Pacific funds only 3% [17][31] - There is a significant regional preference difference, with European, Middle Eastern, and African funds allocating 2% more to the technology sector than U.S. funds, while Asia-Pacific funds have the highest allocation to U.S. tech stocks at 34% [23][31] - The article notes that the largest increases in individual stock holdings were seen in technology giants such as Nvidia (7.4%), Microsoft (7.1%), and Apple (5.8%), indicating strong investor confidence in these companies [24][31] Group 3 - The article discusses a structural change in industry preferences, with a long-term over-allocation to industrials and healthcare, while technology and consumer discretionary sectors have been under-allocated [28][30] - Hedge funds have maintained a long-term low allocation to technology stocks since 2010, primarily due to the high weight of large tech stocks in indices, which raises concerns about valuation risks [30][31] - The report concludes that while technology stocks have been broadly increased, hedge funds' long-term low allocation reflects caution regarding the valuation risks of large tech companies, while the sustained over-allocation to small-cap healthcare underscores optimism about growth potential in the biotech sector [31]