房地产开发板块8月21日跌0.32%，华丽家族领跌，主力资金净流出6.65亿元

Market Overview - On August 21, the real estate development sector declined by 0.32% compared to the previous trading day, with Huayi Family leading the decline [1] - The Shanghai Composite Index closed at 3771.1, up 0.13%, while the Shenzhen Component Index closed at 11919.76, down 0.06% [1] Stock Performance - Notable gainers in the real estate sector included: - Wantong Development (600246) with a closing price of 10.55, up 10.01% on a trading volume of 255,500 shares and a transaction value of 270 million [1] - ST Zhongdi (000609) with a closing price of 3.64, up 4.90% on a trading volume of 25,300 shares [1] - Major decliners included: - Huayi Family (600503) with a closing price of 3.23, down 10.03% on a trading volume of 3,511,800 shares [2] - Shahe Shares (000014) with a closing price of 15.44, down 10.02% on a trading volume of 260,300 shares [2] Capital Flow - The real estate development sector experienced a net outflow of 665 million from institutional investors, while retail investors saw a net inflow of 717 million [2] - The capital flow for key stocks showed: - Wantong Development had a net inflow of 82.7 million from institutional investors, while retail investors had a net outflow of 49.3 million [3] - Air Port Co. (600463) had a net inflow of 80.0 million from institutional investors, with a significant outflow from retail investors of 71.8 million [3]