The Ibovespa fell nearly 1% to hover below 181,000 on Tuesday as oil prices rebounded and pressured the global economic outlook. Energy supply concerns resurfaced after Iran denied holding US talks to end the Gulf war, contradicting Trump's comments about a potential deal. Also, minutes from the Central Bank of Brazil showed that policymakers reiterated that the increase in oil prices may prevent the higher magnitude of rate cuts that were expected for this year. Major banks tumbled, Ita