There is a simple rule among a large part of Brazil’s wealthiest classes that dictates, if you have the opportunity not to do so, avoid keeping your money in domestic bank accounts. The volatility and the relative weakness of the Brazilian Real against the U.S. Dollar, Euro, Pound sterling, or Swiss Franc lead many of the country’s richest individuals to hold savings abroad in foreign money, where they believe it will be less affected by exchange rate fluctuations.
However, restricted to those owning businesses outside of Brazil or with foreign residence permits, holding money in currencies other than BRL is...