开评：三大指数集体低开 CPO、锂矿等概念板块跌幅居前

Market Overview - The three major indices opened lower on December 15, with the Shanghai Composite Index down by 0.62%, the Shenzhen Component Index down by 0.81%, and the ChiNext Index down by 1.16% [1] Sector Performance - The sectors that performed well included liquor concepts, controllable nuclear fusion concepts, food and beverage, and engineering machinery, which saw significant gains [1] - Conversely, sectors that experienced declines included CPO concepts, lithium mining concepts, chip concepts, non-ferrous metals, and real estate [1]