Vietnamese stocks experienced significant intraday volatility during the afternoon trading session (ATC) due to exchange-traded fund (ETF) restructuring. Several stocks, including VHM, VPL, and MCH, hit their price floors as a result of the adjustments. This selling pressure initially caused a 28-point decline in the overall market index. However, the market demonstrated a recovery towards the close of trading, mitigating some of the earlier losses. The ETF restructuring prompted a wave of selling as funds rebalanced their portfolios. Analysts suggest the volatility highlights the impact of large-scale investment vehicles on the Vietnamese stock market. The late-session rebound indicates potential stabilization, but investors remain cautious.