券商股盘初拉升，信达证券、广发证券涨超3%

Group 1 - The core point of the news is the initial surge in brokerage stocks, with notable increases in specific companies [1] - Xinda Securities and GF Securities both rose over 3% [1] - Other companies such as Huatai Securities, China Galaxy, Dongfang Securities, and Hatou Shares also experienced upward movement [1]