烽火通信股价涨9.99%，南方基金旗下1只基金位居十大流通股东，持有1110.2万股浮盈赚取4318.68万元

Group 1 - The core point of the news is that Fenghuo Communication's stock price has increased by 9.99% on January 12, reaching 42.82 yuan per share, with a total market capitalization of 58.157 billion yuan [1] - The company has experienced a cumulative increase of 10.35% over the past three days [1] - Fenghuo Communication specializes in the research, production, and sales of network information security products and mobile information products, with its main business revenue composition being 78.51% from communication system equipment, 18.02% from optical fiber cables, 1.98% from data network products, and 1.49% from other sources [1] Group 2 - Among the top ten circulating shareholders of Fenghuo Communication, a fund under Southern Fund has increased its holdings by 539,600 shares, bringing its total to 11.102 million shares, which represents 0.94% of the circulating shares [2] - The estimated floating profit from this increase is approximately 43.1868 million yuan, with a floating profit of 40.5224 million yuan during the three-day increase [2] - The Southern CSI 500 ETF (510500) has a total scale of 140.098 billion yuan and has achieved a year-to-date return of 7.95% [2]