医疗器械板块10月30日跌1.9%，大博医疗领跌，主力资金净流出12.44亿元

Core Insights - The medical device sector experienced a decline of 1.9% on October 30, with DaBo Medical leading the drop [1] - The Shanghai Composite Index closed at 3986.9, down 0.73%, while the Shenzhen Component Index closed at 13532.13, down 1.16% [1] Medical Device Sector Performance - Notable gainers included: - Aomei Medical: Closed at 11.03, up 9.97% with a trading volume of 196,000 shares and a turnover of 214 million yuan [1] - Haooubo: Closed at 158.00, up 5.93% with a trading volume of 13,700 shares and a turnover of 214 million yuan [1] - Kefu Medical: Closed at 45.70, up 4.94% with a trading volume of 65,800 shares and a turnover of 306 million yuan [1] - Major decliners included: - DaBo Medical: Closed at 49.36, down 7.20% with a trading volume of 56,600 shares and a turnover of 285 million yuan [2] - Yuanbo Medical: Closed at 65.26, down 7.09% with a trading volume of 84,300 shares and a turnover of 556 million yuan [2] - Chutian Technology: Closed at 11.02, down 5.73% with a trading volume of 710,100 shares and a turnover of 801 million yuan [2] Capital Flow Analysis - The medical device sector saw a net outflow of 1.244 billion yuan from institutional investors, while retail investors contributed a net inflow of 774 million yuan [2] - Key stocks with significant capital flow: - Aomei Medical: Net inflow from institutional investors was 73.53 million yuan, while retail investors had a net outflow of 37.16 million yuan [3] - Microelectrophysiology: Net inflow from institutional investors was 44.76 million yuan, with a net outflow from retail investors of 44.46 million yuan [3] - Xinmai Medical: Net inflow from institutional investors was 44.32 million yuan, while retail investors had a net outflow of 36.16 million yuan [3]