Market Performance - The medical device sector increased by 1.01% on October 21, with Botao Bio leading the gains [1] - The Shanghai Composite Index closed at 3916.33, up 1.36%, while the Shenzhen Component Index closed at 13077.32, up 2.06% [1] Top Gainers - Botao Bio (688767) closed at 43.39, up 8.12% with a trading volume of 50,200 shares and a transaction value of 216 million [1] - Xiangsheng Medical (688358) closed at 34.93, up 6.62% with a trading volume of 45,600 shares and a transaction value of 157 million [1] - Hualan Biological (301093) closed at 39.30, up 6.53% with a trading volume of 57,500 shares and a transaction value of 223 million [1] Top Losers - Jinhao Medical (920925) closed at 31.85, down 2.24% with a trading volume of 11,900 shares and a transaction value of 37.83 million [2] - Toukeng Life (300642) closed at 26.75, down 2.01% with a trading volume of 162,300 shares and a transaction value of 44.4 million [2] - Maillande (688273) closed at 40.48, down 1.99% with a trading volume of 22,300 shares and a transaction value of 90.15 million [2] Capital Flow - The medical device sector experienced a net outflow of 229 million from institutional investors and 168 million from retail investors, while retail investors saw a net inflow of 397 million [2][3] - Notable capital inflows included Xinhua Medical with a net inflow of 24.93 million from institutional investors [3] - Hualan Biological had a net inflow of 20.37 million from institutional investors, despite a net outflow from retail investors [3]