开评：三大指数集体低开 超导概念、卫星导航板块走强

Core Viewpoint - The A-share market opened lower with all three major indices declining slightly, while certain sectors showed strength, indicating mixed market sentiment [1]. Market Performance - The Shanghai Composite Index fell by 0.11% - The Shenzhen Component Index decreased by 0.04% - The ChiNext Index also dropped by 0.04% [1]. Sector Analysis - Strong performance was observed in sectors such as combustible ice, shale gas, superconductors, satellite navigation, and commercial aerospace - Conversely, sectors like coal, real estate, aquatic products, and organic silicon experienced a pullback [1].