A股早评：三大指数涨跌不一，沪指低开0.09%报3894.16点，创业板指高开0.25%！食品股盘初活跃，中船系、海南板块低开

Core Viewpoint - The A-share market opened with mixed performance among the three major indices, indicating a cautious sentiment among investors [1] Group 1: Market Performance - The Shanghai Composite Index opened lower by 0.09%, reaching 3894.16 points [1] - The Shenzhen Component Index opened higher by 0.11% [1] - The ChiNext Index opened higher by 0.25% [1] Group 2: Sector Performance - Energy metals and food processing manufacturing sectors opened positively [1] - The China Shipbuilding Industry and Hainan sectors opened negatively [1]