Guoguang Electric (SH:688776) Xin Lang Cai Jing·2026-01-12 01:56Group 1 - The core viewpoint of the news is that Guoguang Electric has seen a significant stock price increase, rising 5.03% to 122.89 yuan per share, with a total market capitalization of 13.319 billion yuan and a cumulative increase of 15.69% over three days [1] - Guoguang Electric, established on October 8, 1981, and listed on August 31, 2021, specializes in the research, production, and sales of vacuum and microwave application products, with revenue composition of 60.90% from microwave devices, 29.97% from nuclear industry equipment and components, and 8.83% from other civilian products [1] Group 2 - From the perspective of major fund holdings, Tongtai Fund has a significant position in Guoguang Electric, with its Tongtai New Energy fund increasing its holdings by 7,278 shares in the fourth quarter, bringing the total to 26,900 shares, which represents 4.32% of the fund's net value [2] - The Tongtai New Energy fund, established on September 29, 2022, has a current scale of 39.3356 million yuan and has achieved a year-to-date return of 12.88%, ranking 147 out of 5,579 in its category, and a one-year return of 92.28%, ranking 137 out of 4,202 [2]