Dollar surges 1.28% to R$5.168; Ibovespa drops 0.86%

Brazilian real depreciates sharply as dollar closes at R$5.168, up 1.28%, while Ibovespa falls 0.86% to 185,814 points. The move suggests risk-off sentiment in Brazilian markets, likely driven by external factors or domestic political/economic uncertainty. The magnitude of the currency move indicates significant investor repositioning.