Market Overview - The medical services sector experienced a decline of 2.71% on November 21, with Baihua Pharmaceutical leading the drop [1] - The Shanghai Composite Index closed at 3834.89, down 2.45%, while the Shenzhen Component Index closed at 12538.07, down 3.41% [1] Stock Performance - Notable gainers included Yangguang Nuohua, which rose by 4.47% to a closing price of 61.21, with a trading volume of 86,300 shares and a transaction value of 530 million [1] - Baihua Pharmaceutical saw a significant decline of 9.67%, closing at 9.06, with a trading volume of 292,400 shares and a transaction value of 275 million [2] - Other notable decliners included Chengda Pharmaceutical (-9.58%), Berry Genomics (-8.67%), and Guangzheng Eye Hospital (-7.26%) [2] Capital Flow - The medical services sector experienced a net outflow of 1.325 billion in institutional funds, while retail investors saw a net inflow of 1.332 billion [2] - The table of capital flow indicates that major stocks like Yangguang Nuohua had a net inflow of 10.986 million from institutional investors, while retail investors had a net inflow of 1.374 million [3]