创业板指半日跌超3%，沪指跌1.88%，中船系、农业种植等板块涨幅居前

Core Viewpoint - The market experienced a significant downturn with all major indices declining, particularly the ChiNext index which fell over 3% [1] Market Performance - The Shanghai and Shenzhen stock exchanges saw a half-day trading volume of 1.31 trillion, an increase of 197.5 billion compared to the previous trading day [1] - Nearly 5000 stocks in the market experienced declines, indicating a broad market sell-off [1] Sector Performance - The agriculture sector showed strong performance, with Zhuan Yin Gao Ke hitting the daily limit of a 20% increase [1] - AI application concepts saw localized strength, exemplified by Rong Ji Software achieving five consecutive trading limit increases [1] - The aquaculture sector continued its strong trend, with Zhong Shui Fishery achieving six consecutive trading limit increases [1] - Conversely, the lithium mining sector faced collective adjustments, with stocks like Shengxin Lithium Energy hitting the daily limit down [1] Index Changes - By the end of the trading session, the Shanghai Composite Index fell by 1.88%, the Shenzhen Component Index decreased by 2.72%, and the ChiNext Index dropped by 3.18% [1]