Brazilian stock market closes higher, driven by monetary policy optimism and STF caution.
The Brazilian financial market showed positive performance this Tuesday, September 15, 2026. The Ibovespa, the main benchmark of the stock exchange, closed the trading session with a 0.54% gain, reaching 186,502.64 points. Concurrently, the spot dollar recorded a slight increase of 0.14%, closing at R$ 5.1551.
Market movement was characterized by investors’ attention to two crucial scenarios. Domestically, the focus was on the judgment at the Supreme Federal Court (STF) that could determine the investigation of Minister Alexandre de Moraes. The decision gained an air of anticipation after Ministers Dias Toffoli and Kássio Nunes Marques recused themselves from the process.
Concurrently, anticipation of monetary policy decisions in the United States and Brazil this Wednesday (16) added an element of caution and expectation. In the U.S., a 25-basis-point interest rate adjustment is expected. In Brazil, the market projects a cut of the same magnitude.
The international scenario, however, presented mixed signals. New York stock exchanges (Wall Street) closed the day lower, pressured by the continuous rise in oil prices and the appreciation of U.S. Treasury yields (Treasuries). The 10-year Treasury yield reached its highest level since 2007.
Oil, in turn, continued its upward trajectory, reflecting concerns about the security of Saudi Arabia‘s energy infrastructure following attacks on a major pipeline. Brent advanced 2.9%, trading at $108.75 per barrel, while WTI rose 4.38%, closing at $105.83 per barrel.
