The Central Bank of Brazil sold $1 billion in spot currency and $1 billion in reverse currency swaps in two simultaneous auctions on Thursday morning, according to market data.
The operations, known as a "casadão" among investors, are designed to inject dollar liquidity into the financial system. The spot sale accepted 12 proposals totaling $1 billion at a cutoff differential of -0.000400, while the reverse swap auction accepted 20,000 contracts worth $1 billion at a cutoff rate of 4.5610.
The reverse swap contracts are set to mature on October 1, 2026, with the spot transactions settling the following day. Analysts note that the combined operations have a neutral effect on the dollar exchange rate, as the central bank simultaneously sells and buys equivalent dollar amounts through different instruments.
The auctions were conducted in São Paulo on August 27, 2026, as part of the central bank's routine liquidity management operations.
