三美股份股价跌5.02%，中泰证券资管旗下1只基金重仓，持有1万股浮亏损失2.81万元

Group 1 - The core point of the news is that Sanmei Co., Ltd. experienced a 5.02% drop in stock price, closing at 53.12 yuan per share, with a trading volume of 2.32 billion yuan and a turnover rate of 0.70%, resulting in a total market capitalization of 32.429 billion yuan [1] - Sanmei Co., Ltd. is primarily engaged in the research, production, and sales of fluorochemical products, with its main business revenue composition being 85.55% from fluorinated refrigerants, 9.77% from hydrogen fluoride, 3.46% from foaming agents, 0.70% from material sales, 0.27% from by-product sales, and 0.25% from other sources [1] Group 2 - From the perspective of fund holdings, one fund under Zhongtai Securities Asset Management has a significant position in Sanmei Co., Ltd. The Zhongtai CSI 500 Index Enhanced A fund (008112) reduced its holdings by 200 shares in the third quarter, maintaining a total of 10,000 shares, which represents 1.09% of the fund's net value, ranking as the seventh largest holding [2] - The Zhongtai CSI 500 Index Enhanced A fund has a total scale of 18.8954 million yuan, with a year-to-date return of 23.98%, ranking 2342 out of 4216 in its category, and a one-year return of 20.78%, ranking 2493 out of 3894 [2]