On Tuesday, the dollar opened close to stable as investors reacted to the announcement from the United States regarding additional tariffs on imports. The initial statement from President Donald Trump had mentioned a 15% rate, but it was later clarified by Customs and Border Protection (CBP) that the rate would be 10%. This development followed the Supreme Court's ruling that blocked the application of a 1977 law supporting global tariffs. Trump’s change in tariff rate came swiftly after the court's decision, but confusion ensued as the White House did not provide an explanation for the initial higher rate.

Analysts are also monitoring ongoing tensions between the US and Iran, which could further influence market dynamics. As of 9:04 AM, the US dollar had dropped by 0.04% and was trading at R$ 5.1672. In the previous day, the dollar had fallen by 0.14%, reaching a two-year low against the Brazilian real. The fluctuations in the exchange rate indicate investor sentiment regarding international relations and trade policies, emphasizing the interconnectedness of global economies.

Overall, the changes in tariff rates reflect not just the internal policies of the US but also how they reverberate through international markets, including Brazil. The stability of the dollar, influenced by geopolitical events, highlights the complexities businesses face and the need for continued vigilance in financial markets.