开盘：三大指数集体低开，航天系、短剧、卫星互联网等概念走弱

Core Viewpoint - The A-share market opened lower on January 15, with declines in major indices, indicating a bearish sentiment among investors [1] Market Performance - The Shanghai Composite Index fell by 0.48% - The Shenzhen Component Index decreased by 0.63% - The ChiNext Index dropped by 0.93% - The Northern Stock 50 Index declined by 1.25% [1] Sector Performance - Strong performance was observed in sectors such as fiberglass, VPN, non-ferrous metals (nickel), cybersecurity, and dye coatings - Weak performance was noted in sectors related to China Electronics Technology Group, Kuaishou, aerospace, short dramas, and satellite internet concepts [1]