盟升电子股价跌5%，永赢基金旗下1只基金重仓，持有45.04万股浮亏损失86.92万元

Group 1 - The core viewpoint of the news is that Mengsheng Electronics has experienced a significant decline in stock price, dropping 10.52% over the past four days, with the current price at 36.67 CNY per share and a market capitalization of 6.157 billion CNY [1] - Mengsheng Electronics, established on September 6, 2013, and listed on July 31, 2020, specializes in the research, development, manufacturing, and sales of satellite application technology products, with a revenue composition of 78.22% from satellite navigation, 20.66% from satellite communication, and 1.12% from leasing [1] - The trading volume for Mengsheng Electronics on the reporting day was 149 million CNY, with a turnover rate of 2.34% [1] Group 2 - Yongying Fund has one fund heavily invested in Mengsheng Electronics, specifically the Yongying High-end Equipment Smart Selection Mixed Fund A (015789), which held 450,400 shares, accounting for 3.46% of the fund's net value, making it the ninth largest holding [2] - The fund has incurred a floating loss of approximately 869,200 CNY today and a total floating loss of 2.0447 million CNY during the four-day decline [2] - The Yongying High-end Equipment Smart Selection Mixed Fund A was established on July 15, 2022, with a current scale of 113 million CNY, and has achieved a year-to-date return of 19.87% and a one-year return of 65.94% [2]