--- title: "A-Share Three Major Indices Slide 2.1% to 3.7% at Midday; SMIC Slumps Over 5%, CONTEMPORARY AMPEREX Down Over 3%" type: "News" locale: "en" url: "https://longbridge.com/en/news/290913299.md" description: "A-share indices slid 2.1% to 3.7% by midday, with the Shanghai Composite down 2.14%, Shenzhen Component down 3.04%, and ChiNext down 3.72%. The PBOC injected RMB231.5 billion via reverse repos. Major declines included SMIC (-5.7%), Contemporary Amperex (-3.1%), BYD (-4.1%), and insurers like China Pacific Insurance (-3.95%). Tech stocks also fell, driven by external weakness." datetime: "2026-06-26T04:20:38.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/290913299.md) - [en](https://longbridge.com/en/news/290913299.md) - [zh-HK](https://longbridge.com/zh-HK/news/290913299.md) generator: "portal-rs" --- # A-Share Three Major Indices Slide 2.1% to 3.7% at Midday; SMIC Slumps Over 5%, CONTEMPORARY AMPEREX Down Over 3% The RMB central parity against the USD was set at 6.8166, adjusted up by 43 bps MoM. The PBOC conducted RMB231.5 billion of seven-day reverse repo operations at an unchanged rate of 1.4%. With no reverse repos maturing today, the single-day net injection was RMB231.5 billion. The three major A-share indices opened 0.5% to 1.2% lower and extended losses alongside intensified declines in major Asia-Pacific markets, sliding 2.1% to 3.7% by midday. The Shanghai Composite Index closed at 4,032 at noon, down 87 points or 2.14%, with turnover of RMB1.1 trillion. The Shenzhen Component Index fell 497 points or 3.04% to 15,846, with turnover of RMB1.32 trillion. The ChiNext Index slumped 162 points or 3.72% to 4,209, with turnover of RMB628.494 billion. Among financials, ICBC (601398.SH) -0.030 (-0.417%) slipped 0.4%, CCB (601939.SH) -0.070 (-0.714%) and BANK OF CHINA (601988.SH) -0.010 (-0.173%) fell 0.7% and 0.2% respectively, while CMB (600036.SH) -0.280 (-0.773%) dropped 0.8%. Insurers were weaker, with CHINA LIFE (601628.SH) -1.030 (-2.792%) down 2.8% and CHINA PACIFIC INSURANCE (601601.SH) -1.190 (-3.953%) falling nearly 4%. BYD Company (002594.SZ) -3.330 (-4.051%) declined 4.1% amid reports of another fatal industrial accident at its construction site in Hungary. CONTEMPORARY AMPEREX (300750.SZ) -12.300 (-3.060%) fell 3.1%. Technology stocks tracked external weakness. In the chip sector, SMIC (688981.SH) -8.940 (-5.699%) tumbled 5.7% and HUA HONG GRACE (688347.SH) -10.160 (-3.075%) dropped 3.1%. AI chipmaker CAMBRICON (688256.SH) -72.010 (-4.785%) fell 4.8%. Domestic GPU names METAX (688802.SH) -34.920 (-4.532%) and MOORE THREADS (688795.SH) -30.030 (-4.290%) declined 4.5% and 4.3%, respectively. LQKJ (688008.SH) -19.290 (-6.910%) slid 6.9%. Optical fibre maker YANGTZE OPTICAL FIBRE (601869.SH) -36.000 (-6.261%) sank 6.3%. Memory chip firm GIGADEVICE (603986.SH) -30.770 (-3.969%) fell nearly 4%. 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