Ibovespa Falls Most in Four Years as Itau Leads Brazil Bank Rout

  • Itau posts biggest drop since 2011 after earnings report
  • Petrobras joins global oil producers' slump as crude retreats

The Ibovespa fell the most in four years as Itau Unibanco Holding SA led a rout in banks after an increase in bad loans highlighted concerns that Brazil’s worst recession in more than a century will sap corporate profits.

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