良信股份股价涨5.41%，长城基金旗下1只基金重仓，持有7.5万股浮盈赚取4.42万元

Group 1 - The core point of the news is that Shanghai Liangxin Electric Co., Ltd. has seen a stock price increase of 5.41%, reaching 11.49 CNY per share, with a total market capitalization of 12.905 billion CNY [1] - The company was established on January 7, 1999, and went public on January 21, 2014, focusing on the research, production, and sales of low-voltage electrical products [1] - The revenue composition of the company includes: 63.82% from distribution electrical appliances, 20.57% from terminal electrical appliances, 12.55% from control electrical appliances, 2.42% from smart electrical products, and 0.65% from other sources [1] Group 2 - Longcheng Fund has a significant holding in Liangxin shares, with the Longcheng Preferred Return Mixed Fund A (010797) holding 75,000 shares, accounting for 1.21% of the fund's net value, ranking as the sixth largest holding [2] - The fund has a total scale of 63.1496 million CNY and has achieved a year-to-date return of 4.98%, ranking 6742 out of 8150 in its category [2] - The fund manager, Ma Qiang, has a tenure of 10 years and 138 days, with the best fund return during his tenure being 66.06% [3]