化学制品板块10月9日涨1.62%，博苑股份领涨，主力资金净流出3.8亿元

Market Overview - On October 9, the chemical products sector rose by 1.62%, with Boyuan Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3933.97, up 1.32%, while the Shenzhen Component Index closed at 13725.56, up 1.47% [1] Top Performers - Boyuan Co., Ltd. (301617) closed at 85.06, with a significant increase of 20.01% and a trading volume of 22,300 lots, amounting to 188 million yuan [1] - Hangzhou Oxygen Plant Group Co., Ltd. (002430) saw a rise of 10.02%, closing at 26.80 with a trading volume of 146,000 lots [1] - Huangma Technology (603181) increased by 8.80%, closing at 20.53 with a trading volume of 437,500 lots [1] Underperformers - Yayun Co., Ltd. (603790) experienced a decline of 9.99%, closing at 23.33 with a trading volume of 61,800 lots [2] - Kaimete Gas (002549) fell by 7.23%, closing at 22.58 with a trading volume of 1,372,200 lots [2] - Tongda Co., Ltd. (300321) decreased by 6.15%, closing at 38.58 with a trading volume of 43,200 lots [2] Capital Flow - The chemical products sector saw a net outflow of 380 million yuan from institutional investors, while retail investors had a net inflow of 401 million yuan [2] - The table of capital flow indicates that major stocks like Hangzhou Oxygen Plant and Boyuan Co. experienced varying levels of net inflow and outflow from different investor types [3]