城商行板块9月12日跌1.78%，齐鲁银行领跌，主力资金净流出11.32亿元

Market Overview - The city commercial bank sector experienced a decline of 1.78% on September 12, with Qilu Bank leading the drop [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Individual Bank Performance - Zhengzhou Bank closed at 2.07, up 0.49% with a trading volume of 929,900 shares and a transaction value of 192 million [1] - Qilu Bank closed at 5.69, down 1.90% with a trading volume of 508,000 shares and a transaction value of 291 million [2] - Xiamen Bank closed at 6.50, down 1.66% with a trading volume of 128,000 shares and a transaction value of 83.97 million [2] Capital Flow Analysis - The city commercial bank sector saw a net outflow of 1.132 billion in main funds, while retail funds had a net inflow of 535 million [2] - Qilu Bank had a main fund net inflow of 8.6045 million, but a net outflow of 14.4704 million from speculative funds [3] - Xiamen Bank experienced a significant main fund net outflow of 16.3414 million, with a retail net inflow of 15.2695 million [3]