证券研究报告 | 2025年08月23日 金融工程日报 沪指单边上行站上 3800 点，本周累计涨幅 3.49%创年内最佳 核心观点 金融工程日报 市场表现：20250822 市场全线上涨，规模指数中上证 50 指数表现较好，板 块指数中科创 50 指数表现较好，风格指数中中证 500 成长指数表现较好。 电子、通信、计算机、非银、国防军工行业表现较好，银行、石油石化、农 林牧渔、钢铁、交通运输行业表现较差。服务器、万得元宇宙、炒股软件、 AIPC、ASIC 芯片等概念表现较好，黄酒、宠物经济、家纺、西藏振兴、培 育钻石等概念表现较差。 市场情绪：20250822 收盘时有 81 只股票涨停，有 4 只股票跌停。昨日涨 停股票今日高开高走，收盘收益为 1.94%，昨日跌停股票今日收盘收益为 -0.57%。今日封板率 84%，较前日提升 25%，连板率 25%，较前日提升 13%， 封板率创近一个月新高。 市场资金流向：截至 20250821 两融余额为 21468 亿元，其中融资余额 21320 亿元，融券余额 148 亿元。两融余额占流通市值比重为 2.3%，两融 交易占市场成交额比重为 11.0%。 折溢 ...

Group 1 - The ETF market showed mixed performance with the 500 Growth ETF (159620) leading gains at 3.49% [1] - The Rare Earth ETF (516150) increased by 3.41%, while the Rare Metals ETF (159671) rose by 3.36% [1] - The Sci-Tech 50 ETF Index (588040) was the biggest loser, declining by 1.15% [1] Group 2 - The Innovative Drug Industry ETF (516060) fell by 1.06% [1] - The Big Data ETF (515400) experienced a decrease of 1.05% [1]

The provided content does not contain any specific quantitative models or factors, nor does it include their construction processes, formulas, evaluations, or backtesting results. The documents primarily focus on market performance, sector and concept index movements, market sentiment, capital flows, ETF premiums/discounts, block trading discounts, and institutional activities. These are descriptive analyses and statistics rather than detailed quantitative models or factor-based methodologies.