A股午评：三大指数集体上涨，沪指涨0.88%重回4000点上方创业板指涨1.39%，金属铝、存储芯片板块领涨！超2700股上涨，成交13378亿放量1881亿

Core Viewpoint - The A-share market experienced a collective rise in the three major indices during the morning session, indicating positive investor sentiment and market activity [1]. Group 1: Market Performance - The Shanghai Composite Index increased by 0.88%, closing at 4004.25 points [1]. - The Shenzhen Component Index and the ChiNext Index both rose by 1.39% [1]. - The total trading volume in the Shanghai and Shenzhen markets reached 13,378 billion yuan, an increase of 1,881 billion yuan compared to the previous day [1]. Group 2: Sector Performance - Leading sectors included phosphorus chemical, aluminum metal, storage chips, and controllable nuclear fusion [1]. - The Hainan Free Trade Zone sector experienced a pullback, while tourism, film and television, and duty-free shop sectors declined [1]. - Over 2,700 individual stocks in the market saw an increase [1].