SDGI(SZ:000070) Xin Lang Cai Jing·2025-12-22 02:01Group 1 - The core viewpoint of the news is that Tefa Information (SZ000070) reached its daily limit up, closing at 12.94 yuan with a 10.03% increase, resulting in a total market capitalization of 11.65 billion yuan and a circulating market capitalization of 11.50 billion yuan, with a total transaction amount of 1.05 billion yuan [1][2]. Group 2 - Tefa Information's rise is attributed to its diversified business model, which includes four main sectors: optical communication, cable, smart services, and property asset management, positioning the company to benefit from the growing demand in the optical communication industry driven by 5G network construction and data center expansion [2]. - The company is also involved in military information technology, which is gaining increased attention due to the heightened focus on national defense and modernization, thus creating additional market opportunities for Tefa Information [2]. - Technical indicators such as MACD forming a golden cross and the stock price breaking through significant resistance levels may have attracted technical investors, contributing to the stock's limit-up performance [2].