中证A500指数午前反弹，A500ETF易方达（159361）半日成交额近30亿元

Group 1 - The market opened high but experienced a decline, with a slight rebound in the "A series" indices by midday [1] - As of the midday close, the CSI A500 and CSI A100 indices both increased by 0.1%, while the CSI A50 index decreased by 0.1% [1] - The trading volume for the A500 ETF from E Fund reached nearly 3 billion yuan during the half-day session [1]