A股三大指数均跌超1%，超4900股下跌，银行股集体反弹

Core Viewpoint - The market experienced a downturn on September 23, with significant declines in major indices and a high volume of stocks falling, indicating a bearish sentiment among investors [1] Market Performance - The Shanghai Composite Index fell by 1.23% to 3781.61 - The Shenzhen Component Index decreased by 1.84% to 12916.41 - The ChiNext Index dropped by 1.75% to 3053.48 - Over 4900 stocks in the market declined - The total trading volume in the Shanghai and Shenzhen markets reached 1.7 trillion yuan, an increase of 353.9 billion yuan compared to the previous trading day [1] Sector Performance - Banking stocks rebounded collectively, with notable gains from Nanjing Bank, Xiamen Bank, China Construction Bank, and Agricultural Bank, each rising over 3% - The port and shipping sector showed resilience, with Nanjing Port and Ningbo Shipping both hitting the daily limit - The semiconductor industry continued its strong performance, with Changchuan Technology and Lianang Micro both hitting the daily limit, and Huasoft Technology achieving three consecutive limit-ups - The tourism and hotel sector faced significant declines, with Yunnan Tourism hitting the daily limit down - Sectors such as tourism, real estate, CRO, and internet finance experienced the largest declines [1]