
FX Weekly Overview (Brazil Issue)
Dollar to reflect Brazilian electoral scenario and interest rate decisions by FOMC and Copom

- Currencies
By: Leonel Mattos, Market Intelligence Analyst • BRAZIL PRS

USDBRL and Dollar Index (points)
USDBRL Variations | Daily: +0.53% | Weekly: -0.10% | Monthly: -1.09% | Yearly: -6.43% | In 12 months: -4.93%
Dollar Index Variations | Daily: +0.07% | Weekly: -0.01% | Monthly: -0.28% | Yearly: +0.82% | In 12 months: +1.65%
In the domestic electoral scenario, investors are expected to closely monitor presidential voter intention polls to identify potential impacts of the institutional crisis in the Supreme Federal Court (STF) and its repercussions on the electoral campaigns.
Why this matters: A tight electoral race could reduce predictability regarding Brazil's economic policies for the next four years, increasing the perception of risks for Brazilian assets, amplifying volatility, and harming the BRL's performance.
Tight Elections: Recent voter intention polls have indicated a trend of weakening President Lula's candidacy and strengthening Flavio Bolsonaro's, although the candidates remain in a technical tie.
Institutional Crisis in the STF: Amidst the institutional crisis in the Supreme Federal Court (STF), last Friday (11), the Court's President, Edson Fachin, requested Minister André Mendonça to lift the confidentiality of all investigations related to Banco Master.
Flavio Bolsonaro Investigated: Along with the material released by André Mendonça regarding the Banco Master case investigations is a request to investigate Flavio Bolsonaro for alleged crimes involving the financing of the film “Dark Horse.”
US: Historical and Expectations for Interest Rates – Updated as of September 11, 2026
Bets for the Federal Reserve's Interest Rate Decision on September 16
The currency market is expected to reflect the Federal Reserve's (Fed) Federal Open Market Committee (FOMC) interest rate decision next Wednesday (16), which is likely to increase its benchmark interest rate by 0.25 percentage points.
Why this matters: The Federal Reserve's interest rate hike is expected to increase the yield on US Treasury securities (Treasuries) and attract foreign capital to the country, strengthening the USD globally.
High Inflation Risks: Both the Consumer Price Index (CPI) and the Producer Price Index (PPI) accelerated in August in line with expectations, driven by rising fuel and other petroleum derivative prices.
Probable Interest Rate Hike: For this reason, recent economic indicators have solidified investor bets that the FOMC will raise its interest rate from the range between 3.50% and 3.75% per year to the range between 3.75%.
Warsh Likely to Have Majority: In terms of Committee dynamics, Warsh is expected to find it relatively easy to secure a majority (seven votes) for the interest rate decision, whether it be a pause or a hike.
What's Next? While a rate hike in this Wednesday's decision seems certain, there is considerable doubt about the Fed's next steps.
Brazil: Historical and Expectations for Interest Rates – Focus Bulletin of September 4, 2026
On Wednesday (16), the Monetary Policy Committee (Copom) of the Central Bank (BC) is expected to reduce the benchmark interest rate (Selic) by 0.25 percentage points, from 14.00% to 13.75% per year.
Why this matters: The reduction of the benchmark interest rate (Selic) is expected to lower the yield on domestic securities and hinder the attraction of foreign capital to the country, weakening the BRL.
Inflation and Economic Activity Favor Cuts: August's reading of the National Consumer Price Index (IPCA) was favorable, indicating a slowdown in 12-month inflation from 4.44% to 4.22%, closer to the target center.
Inflationary Risk Factors: With the recent escalation of tensions in the Middle East, Brent prices have risen over 15% this month, returning to the USD 100 per barrel level, heightening concerns about global inflationary pressures.
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