创业板指高开低走，创业板ETF（159915）半日成交额超40亿元

Core Viewpoint - The ChiNext index opened high but experienced a decline, with significant drops in various sub-indices by the midday close [1]. Group 1: Market Performance - The ChiNext Growth Index initially rose over 1% but ultimately fell by 1.5% by midday [1]. - The ChiNext Index decreased by 1.8% at the close of the morning session [1]. - The ChiNext Mid-Cap 200 Index saw a more substantial decline of 3.4% [1]. Group 2: Trading Activity - The trading volume for the ChiNext ETF (159915) exceeded 4 billion yuan during the half-day session [1].