沪深300ETF中金（510320）涨0.98%，半日成交额284.87万元

Group 1 - The core viewpoint of the article highlights the performance of the CSI 300 ETF, which rose by 0.98% to 1.237 yuan with a trading volume of 2.8487 million yuan as of the midday close on September 25 [1] - Major holdings in the CSI 300 ETF include Kweichow Moutai, which fell by 0.07%, and Contemporary Amperex Technology, which increased by 4.98% [1] - The fund's performance benchmark is the CSI 300 Index return, managed by CICC Fund Management Co., Ltd., with a return of 22.46% since its inception on April 16, 2025, and a return of 4.30% over the past month [1]