中证2000ETF（563300）开盘涨1.17%，重仓股鼎通科技涨2.53%，骄成超声涨1.85%

Group 1 - The core point of the article highlights the performance of the Zhongzheng 2000 ETF (563300), which opened with a gain of 1.17% at 1.472 yuan [1] - The top-performing stocks within the ETF include Ding Tong Technology, which rose by 2.53%, and Jiao Cheng Ultrasound, which increased by 1.85% [1] - The fund's performance benchmark is the Zhongzheng 2000 Index return, managed by Huatai-PB Fund Management Co., with a return of 45.49% since its establishment on September 6, 2023, and a monthly return of 6.52% [1]