参股基金板块9月12日跌1.03%，国海证券领跌，主力资金净流出66.65亿元

Market Overview - The participation fund sector experienced a decline of 1.03% on September 12, with Guohai Securities 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 Stock Performance - Notable gainers included Suzhou High-tech, which rose by 3.74% to a closing price of 5.82, and Zhongjun Securities, which increased by 1.64% to 8.07 [1] - Guohai Securities saw a significant decline of 2.65%, closing at 4.78, with a trading volume of 4.2058 million shares and a transaction value of 2.028 billion [2] Capital Flow Analysis - The participation fund sector experienced a net outflow of 6.665 billion from main funds, while retail investors saw a net inflow of 3.9 billion [2] - The capital flow data indicates that retail investors contributed positively, contrasting with the main funds' outflow [3] Detailed Stock Capital Flow - Zhongjun Securities had a main fund net inflow of 40.86 million, but retail investors showed a net outflow of 29.42 million [3] - Suzhou High-tech also experienced a main fund net inflow of 30.91 million, while retail investors had a net outflow of 7.17 million [3]