Brazilian Stock Market Plunges 8% at Open, Halts Trading for 30 Minutes

Brazil's stock market suffered its steepest drop in 28 years, opening down 8% and triggering a 30-minute trading halt. The sell-off deepens an already prolonged decline, though the specific trigger is not stated in the source. This signals severe investor stress in one of the world's worst-performing markets, likely reflecting broader emerging-market risk aversion.