多只核心宽基ETF成交额大增

Group 1 - A significant increase in trading volume was observed for several core broad-based ETFs on May 23, with notable sell-offs occurring in the afternoon session [1] - The Shanghai Composite Index and the CSI 300 Index closed down by 0.94% and 0.81% respectively, indicating a market pullback [1] - The Huatai-PB CSI 300 ETF recorded a trading volume of nearly 3.4 billion yuan, leading among stock-based ETFs [1]