Core Insights - The Securities Social Media Index (SMI) for December 2025 shows a competitive landscape among brokerage firms, with Dongfang Caifu, CITIC Securities, and China Merchants Securities occupying the top three positions. Dongfang Caifu and CITIC Securities maintained their positions, while China Merchants Securities rose from sixth to third place. Shenwan Hongyuan also made significant progress, moving from 17th to 4th place [1][25]. Group 1: Brokerage Rankings - The top three firms in the SMI for December 2025 are Dongfang Caifu (81.06), CITIC Securities (77.83), and Shenwan Hongyuan (76.80) [7][10]. - New entrants to the SMI include Debang Securities, Caixin Securities, and CITIC JianTou, while Huazhong Securities, Kaiyuan Securities, and Huafu Securities dropped out of the rankings, indicating intensified competition in social media operations among brokerages [1][25]. Group 2: Content Themes - The high-engagement content on Douyin includes three main categories: investment cognition, policy interpretation, and brand services. Notable posts include Dongfang Caifu's insights on well-known investors, Guojin Securities' analysis of quantitative institutions, and CITIC Securities' introduction of its "Xin 100" wealth management system [11][15]. - The video platform's high-engagement content also reflects year-end outlooks and investor education, with Dongfang Caifu's "G2026 Stock Market Train" leading in likes, while CITIC Securities emphasized rational investment and long-term value [15][18]. Group 3: Social Media Engagement - The top-performing public accounts include CITIC Securities with a "2026 Investment Calendar" leading in readership, followed by Dongfang Caifu's "Weekend Major Events" and Zhongjin's analysis of the Central Economic Work Conference [20][22]. - The content strategy for year-end focuses on summarizing the past year and providing insights for the upcoming year, emphasizing the need for a balance of warmth, depth, and practicality in communications [25].