A股证券板块震荡走强，锦龙股份封涨停，中银证券涨超5%，国盛金控、国信证券、中原证券跟涨。

Core Viewpoint - The A-share securities sector is experiencing a strong rebound, with notable gains in several companies, indicating a positive market sentiment in this industry [1] Company Summaries - Jinlong Co., Ltd. has reached the daily limit increase, reflecting strong investor interest and confidence in its performance [1] - Bank of China Securities has seen an increase of over 5%, suggesting a robust market position and potential growth prospects [1] - Guosheng Financial Holdings, Guoxin Securities, and Zhongyuan Securities are also experiencing upward movements, indicating a broader positive trend within the securities sector [1]