A股午评：沪指、创业板指收跌，深指飘红，近3000只个股下跌

Market Overview - A-shares opened mixed on the 26th, with major indices fluctuating before collectively turning negative, except for the Shenzhen Composite Index which turned positive near noon [1] - By the midday close, the Shanghai Composite Index fell by 0.08%, while the Shenzhen Composite Index rose by 0.28%, and the ChiNext Index decreased by 0.39% [2] Trading Volume - The total trading volume for the half-day reached 1.65 trillion yuan, with nearly 3,000 stocks declining [1] Sector Performance - Sectors such as AI applications, lithium batteries, fintech, photovoltaic, gold, and innovative pharmaceuticals showed weakness, while real estate and insurance industries experienced significant declines [3] - Conversely, sectors like circuit boards, superhard materials, and ultra-high voltage themes were active [3]