A股早评：沪指低开0.14% 统一大市场概念盘初拉升

Market Overview - The A-share market opened with the Shanghai Composite Index down by 0.14%, the Shenzhen Component Index down by 0.08%, and the ChiNext Index down by 0.19% [1] Key Concepts - The concept of a unified national market saw initial gains, with Shentong Express rising over 8% and Yunda Holdings rising over 6%. This follows the National Development and Reform Commission's emphasis on advancing the construction of a unified national market and eliminating "involutionary" competition [1] - The video concept related to AI saw activity, with Yidian Tianxia rising over 7%, following Alibaba's release of an open-source movie-level AI video model [1] Sector Performance - The CPO concept opened lower, with Dongtian Micro and Shengyi Electronics both falling nearly 5% [1] - The military equipment sector saw a decline, with Beifang Changlong dropping over 7% and Guorui Technology falling over 5% [1]