苏试试验股价跌5.14%，圆信永丰基金旗下1只基金重仓，持有80万股浮亏损失84万元

Group 1 - The core point of the news is that Suzhou Su Test Experiment Group Co., Ltd. experienced a stock price decline of 5.14%, with a current share price of 19.36 yuan, a trading volume of 545 million yuan, and a market capitalization of 9.845 billion yuan [1] - The company, established on December 29, 2007, and listed on January 22, 2015, specializes in environmental and quality reliability testing and analysis services for industrial products [1] - The main revenue composition of the company includes environmental reliability testing services (49.19%), testing equipment (31.27%), integrated circuit verification and analysis services (15.63%), and other services (3.91%) [1] Group 2 - From the perspective of major fund holdings, a fund under Yuanxin Yongfeng has a significant position in Su Test Experiment, with a reduction of 477,500 shares in the third quarter, holding a total of 800,000 shares, which represents 4.15% of the fund's net value [2] - The Yuanxin Yongfeng Youyue Life Fund (004959) was established on January 29, 2018, with a current scale of 338 million yuan, and has achieved a year-to-date return of 6.63% [2] - The fund's performance over the past year shows a return of 44.42%, ranking 2646 out of 8093 in its category [2]