COTRAN(SZ:300731) Xin Lang Cai Jing·2025-12-23 03:14Group 1 - The core viewpoint of the news is that Shenzhen Kexin New Materials Co., Ltd. has seen a significant stock price increase of 5.79%, reaching 54.63 CNY per share, with a trading volume of 547 million CNY and a turnover rate of 8.63%, resulting in a total market capitalization of 6.907 billion CNY [1] - The company specializes in the research, production, and sales of high-performance special rubber sealing materials, providing comprehensive solutions for waterproofing, insulation, fireproofing, and sealing [1] - The revenue composition of the company's main business includes: 56.03% from heat dissipation metal structural parts, 16.51% from automotive sealing strips, 13.65% from insulation and fireproof materials, 10.82% from waterproof sealing materials, and 2.98% from other products [1] Group 2 - Dongwu Fund has one fund heavily invested in Kexin New Materials, specifically the Dongwu Double Triangle Stock A (005209), which held 79,000 shares in the third quarter, accounting for 3.74% of the fund's net value, making it the fifth-largest holding [2] - The Dongwu Double Triangle Stock A fund has achieved a year-to-date return of 39.46%, ranking 997 out of 4,197 in its category, and a one-year return of 39%, ranking 822 out of 4,154 [2] - The fund manager, Chen Weibin, has a tenure of 295 days, with the fund's total asset size at 93.409 million CNY, achieving a best return of 23.59% and a worst return of 23.13% during his management period [3]