股份制银行板块12月18日涨1.76%，兴业银行领涨，主力资金净流入3.09亿元

Core Insights - The banking sector saw a rise of 1.76% on December 18, with Industrial Bank leading the gains [1] - The Shanghai Composite Index closed at 3876.37, up 0.16%, while the Shenzhen Component Index closed at 13053.98, down 1.29% [1] Stock Performance - Industrial Bank (601166) closed at 20.94, up 2.25% with a trading volume of 670,000 shares and a transaction value of 1.389 billion [1] - Other notable performers include: - Shanghai Pudong Development Bank (600000) at 11.78, up 2.08% [1] - China Merchants Bank (600036) at 42.37, up 2.05% [1] - CITIC Bank (601998) at 7.51, up 1.76% [1] - The overall trading volume and transaction values for various banks indicate active market participation [1] Fund Flow Analysis - The banking sector experienced a net inflow of 309 million from institutional investors, while retail investors saw a net outflow of 118 million [1] - Detailed fund flow for key banks includes: - Industrial Bank had a net inflow of 101 million from institutional investors [2] - China Everbright Bank (601818) saw a net inflow of 63 million from institutional investors [2] - Shanghai Pudong Development Bank had a net inflow of 46 million from institutional investors [2] - Retail investors showed significant outflows across most banks, indicating a cautious sentiment among smaller investors [2]