收评：沪指跌近1%失守4000点 海南、福建板块全天强势

Market Overview - The three major A-share indices opened lower and closed down, with the Shanghai Composite Index falling by 0.97%, the Shenzhen Component Index down by 1.93%, and the ChiNext Index decreasing by 2.82% [1] - The total trading volume in the Shanghai and Shenzhen markets was 19,804 billion yuan, a decrease of 853 billion yuan compared to the previous day [1] - Over 3,300 stocks in the market experienced declines [1] Sector Performance - The Hainan and Fujian sectors showed strong performance throughout the day, with several stocks hitting the daily limit [1] - Pharmaceutical stocks related to influenza saw significant gains, while gas and photovoltaic equipment sectors also performed well [1] - The storage chip sector experienced a pullback, with stocks like Baiwei Storage dropping over 10% [1] - The CPO and food and beverage sectors faced adjustments, with San Yuan shares hitting the daily limit down [1] Notable Stocks - Stocks such as Kangzhi Pharmaceutical, Hainan Haiyao, Hainan Development, and Haima Automobile reached the daily limit up [1] - Gas stocks like Changchun Gas and Victory Shares also hit the daily limit up [1] - The photovoltaic concept saw a brief surge before retreating, with Zhongxin Bo rising over 10% [1] - Medical stocks led the market, with companies like Yuyuan Pingmin and Renmin Tongtai hitting the daily limit up [1]