Market Overview - On August 15, the three major A-share indices opened lower, with the Shanghai Composite Index down 0.18%, the Shenzhen Component Index down 0.28%, and the ChiNext Index down 0.2% [1] Sector Performance - The computing power industry chain led the decline, with noticeable pullbacks in GPU and CPO sectors; artificial intelligence also weakened [1] - The lithography machine and brain-computer interface themes were active [1] Sector Gains and Losses - Fentanyl sector increased by 0.59% with a net capital outflow of 244.9 million - Sci-tech new shares rose by 0.58% with a net capital inflow of 1,018.7 million - Supercapacitors gained 0.57% with a net capital outflow of 441.2 million - High-pressure oxygen chambers increased by 0.54% with a net capital inflow of 1,118.7 million - Oil and gas extraction and services rose by 0.47% with a net capital inflow of 286.4 million - Foxconn concept stocks increased by 0.35% with a net capital inflow of 4,458 million - Rail transit equipment gained 0.35% with a net capital inflow of 145.7 million - The aquaculture sector surged by 40.34% with a net capital inflow of 158.8 million [2]

Core Viewpoint - The A-share market experienced a collective decline on August 15, with the Shanghai Composite Index down by 0.18%, the Shenzhen Component Index down by 0.28%, and the ChiNext Index down by 0.2%. The computing power industry chain led the decline, particularly in the GPU and CPO sectors, while artificial intelligence showed weakness. However, sectors such as photolithography machines and brain-computer interface themes remained active [1]. Sector Performance Summary - Fentanyl sector increased by 0.59% with a net capital outflow of 2.449 million [2] - The food and egg relocation sector decreased by 1.50% with a net capital inflow of 5.794 million [2] - The science and technology innovation/new stock sector rose by 0.58% with a net capital inflow of 10.187 million [2] - The diversified finance sector fell by 1.03% with a net capital outflow of 16.70 million [2] - The supercapacitor sector increased by 0.57% with a net capital outflow of 4.412 million [2] - The precious metals sector decreased by 0.99% with a net capital outflow of 9.122 million [2] - The high-pressure oxygen chamber sector rose by 0.54% with a net capital inflow of 1.118 million [2] - The engineering machinery sector fell by 0.74% with a net capital inflow of 15.66 million [2] - The oil and gas extraction and service sector increased by 0.47% with a net capital inflow of 2.864 million [2] - The F5G concept sector decreased by 0.67% with a net capital outflow of 33.53 million [2] - The Foxconn concept sector rose by 0.35% with a net capital inflow of 4.458 million [2] - The urban rail transit equipment sector increased by 0.35% with a net capital inflow of 1.457 million [2] - The aquaculture sector rose by 0.34% with a net capital inflow of 1.588 million [2] - The tourism and hotel sector decreased by 0.63% with a net capital inflow of 1.607 million [2] - The Huawei mobile phone sector increased by 0.32% with a net capital outflow of 4.185 million [2] - The consumer electronics sector rose by 0.29% with a net capital inflow of 3.162 million [2] - The mobile payment sector decreased by 0.55% with a net capital outflow of 9.116 million [2]