StoneX logo

FX Weekly Overview (Brazil Issue)

By: Leonel Mattos, Market Intelligence Analyst • BRAZIL PRS

Banner Currencies

Dollar to reflect Brazilian electoral race, US economic data, and PTAX

  • Bullish
  • The prospect of stabilization in the rise of Flávio Bolsonaro's voting intentions may reduce investors' expectations of a government change and fiscal policy direction, potentially raising national risk perception and harming the performance of the Brazilian real.
  • Strong figures for inflation, GDP, and employment in the US should reinforce the perception of a more robust economy, increasing bets on further interest rate hikes by the Fed in the short term and strengthening the USD globally.
  • Bearish
  • No predominantly bearish factors have been identified for the exchange rate this week. However, it is necessary to consider that exchange rates are historically volatile and that a decline remains possible, either due to frustration with bullish assumptions or the occurrence of unexpected events.

The week in review

  • In the electoral sphere, the stabilization of Flávio Bolsonaro's voting intentions reduced investors' expectations of a potential government change and a more conservative fiscal policy direction, harming the performance of the Brazilian real.
  • Simultaneously, on the external front, the preliminary US Purchasing Managers' Index (PMI) from S&P Global exceeded expectations, while high oil prices and firmer tones from monetary authorities regarding inflation strengthened bets on further interest rate hikes this year, boosting the USD globally.

USDBRL and Dollar Index (points)image-20260927210505-1

Source: StoneX cmdtyView. Design: StoneX.

USDBRL variations | Daily: -0.07% | Weekly: +0.80% | Monthly: +0.11% | Annual: -5.29% | Over 12 months: -3.32%
Dollar Index variations | Daily: -0.27% | Weekly: +0.78% | Monthly: +1.58% | Annual: +2.71% | Over 12 months: +2.57%

KEY EVENT: Electoral race in Brazil

Expected impact on the USDBRL: bullish

Less than 9 days to go until the first round of Brazil's presidential elections on October 4, the foreign exchange market is expected to react to the political and electoral landscape, with next week's events being crucial for investors to calibrate their expectations for the final outcome.

  • Three voting intention polls will be released: Quaest and BTG Pactual/Nexus surveys on Monday (28) and the AtlasIntel poll on Tuesday (29).
  • Additionally, President Lula plans to participate in the presidential candidate debate on Thursday (01) as a way to anticipate the confrontation with Senator Flávio Bolsonaro.
  • If Lula does not attend the debate, there is an assessment that Flávio may also be absent.

 

Why this matters? A tight electoral race could decrease predictability regarding Brazil's economic policies for the next four years, increasing national asset risk perception, amplifying volatility, and harming the performance of the Brazilian real.

  • In particular, recent reactions from financial market agents reveal a preference for the election of a new president who might adopt more conservative fiscal policies.
  • As such, lower prospects for a government change tend to elevate national asset risk perception and harm the performance of the BRL.

 

Recent stabilization: The latest poll conducted by Datafolha on Thursday (24) indicated that Lula and Flávio Bolsonaro had 47% and 45% of voting intentions in a potential second round, respectively.

  • Compared to the previous survey, both candidates increased their voting intentions by 1 percentage point, maintaining the distance and the scenario of a technical tie. 
  • The latest data suggests stabilization in Flávio's voting intention advance, which reduced the gap with Lula and even gained a numerical advantage in some polls (though still within a technical tie).
  • Therefore, investors are keen to observe whether Flávio's stabilization trend will persist next week or if the candidate can regain momentum in voting intentions.
  • Amid parity in candidate voting intentions, the race is expected to advance to the second round on October 25.

 

Government measures: On Friday night (25), the federal government is expected to sign two provisional measures: one to ban online betting and another for renegotiating individual debts.

  • As of this report's publication, there was no official confirmation of these measures, but investors should closely monitor possible impacts on voting intentions.
  • It is worth noting that weeks ago, the government decreed a 15% adjustment to the Bolsa Família benefit, raising concerns about public account balance and potential favoritism in Lula's re-election campaign.

 

US economic data

Expected impact on the USDBRL: bullish

US: Interest rate history and expectations – updated September 25, 2026image-20260927210748-2

Source: CME FedWatch Tool. Design: StoneX. Refers to the highest probability bet in the futures interest rate market on the indicated date.

On the external front, investors are expected to react to the release of key US economic indicators, particularly for inflation and the labor market.

 

Why this matters: Strong numbers for inflation, GDP, and employment in the US should reinforce the perception of a more robust economy, increasing bets on further interest rate hikes by the Fed in the short term.

  • This, in turn, would increase yields on US Treasuries and favor attracting foreign capital to the country, strengthening the USD globally.

 

Estimates: Median estimates for the Employment Situation Report indicate that the net change in US jobs decreased from 162,000 in August to 100,000 in September.

  • Meanwhile, median projections for the Personal Consumption Expenditures (PCE) Price Index, a metric used by the Fed to monitor consumer inflation, suggest its monthly variation will increase from 0.2% in July to 0.4% in August.
  • The core indicator, excluding volatile food and energy components, is expected to rise from 0.2% to 0.3% during the period.
  • Additionally, a methodological revision in the index's calculation will reduce the weight of certain components, such as financial services, legal services, and software-related services, which should lower the 12-month accumulated increase in the PCE core by approximately 0.2 percentage points.
  • If confirmed, these numbers reinforce the perception of a more robust US economy than anticipated, increasing bets on further Fed interest rate hikes.

 

Variation in total non-farm jobs (000) and the unemployment rate (%) in the USimage-20260927211450-3

Source: U.S. Bureau of Labor Statistics (BLS), Federal Reserve Bank of St. Louis. Design: StoneX.

Higher interest rates for longer: In recent weeks, investors have consolidated expectations of higher interest rates for a longer period in the US, anticipating a firm cycle of Fed rate hikes.

  • Among the factors driving this expectation are firmer statements from Fed members, revealing greater concern about the US inflationary outlook.
  • Simultaneously, the prospect of prolonged maritime trade restrictions in the Middle East keeps oil prices high, close to USD 100 per barrel, and raises concerns about global inflationary pressures.
  • Finally, recent economic data points to stronger economic growth, a healthy labor market, and higher price pressures, suggesting the need for tighter financial conditions.

 

End-of-month PTAX rate

Expected impact on the USDBRL: undefined

End-of-month PTAX rate – sales (BRL/USD)image 138105

Source: Central Bank of Brazil. Design: StoneX.

Trading volume and exchange rate volatility are expected to increase during today's session due to the formation of the end-of-month PTAX rate.

  • The PTAX rate is a reference published daily by the Central Bank, and its end-of-month value is widely used in foreign exchange contracts and derivatives.
  • The Central Bank calculates its value based on the average quotes obtained during four consultation windows between 10:00 a.m. and 1:10 p.m.

 

Why this matters: Financial market operators intensify their operations during the intervals of the final monthly PTAX rate formation to try to influence its value in a direction that is more advantageous for their positions, which increases volatility and makes it harder to interpret the real's movements on the day.

 

ECONOMIC INDICATORS

 

image-20260927211532-4

Sources: Central Bank of Brazil; B3; IBGE; Fipe; FGV; MDIC; IPEA, and StoneX cmdtyView.
  • Currencies

The StoneX Group Inc. group of companies provides financial services worldwide through its subsidiaries, including physical commodities, securities, exchange-traded and over-the-counter derivatives, risk management, global payments and foreign exchange products in accordance with applicable law in the jurisdictions where services are provided. References to over-the-counter (“OTC”) products or swaps are made on behalf of StoneX Markets LLC (“SXM”), a member of the National Futures Association (“NFA”) and provisionally registered with the U.S. Commodity Futures Trading Commission (“CFTC”) as a swap dealer. SXM’s products are designed only for individuals or firms who qualify under CFTC rules as an ‘Eligible Contract Participant’ (“ECP”) and who have been accepted as customers of SXM. StoneX Financial Inc. (“SFI”) is a member of FINRA/NFA/SIPC and registered with the MSRB. SFI is registered with the U.S. Securities and Exchange Commission (“SEC”) as a Broker-Dealer and with the CFTC as a Futures Commission Merchant and Commodity Trading Adviser. References to securities trading are made on behalf of the BD Division of SFI and are intended only for an audience of institutional clients as defined by FINRA Rule 4512(c). References to exchange-traded futures and options are made on behalf of the FCM Division of SFI . StoneX is a trading name of StoneX Financial Ltd (“SFL”). SFL is registered in England and Wales, Company No. 5616586. SFL is authorized and regulated by the Financial Conduct Authority [FRN 446717] to provide to professional and eligible customers including: arrangement, execution and, where required, clearing derivative transactions in exchange traded futures and options. SFL is also authorised to engage in the arrangement and execution of transactions in certain OTC products, certain securities trading, precious metals trading and payment services to eligible customers. SFL is authorised & regulated by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services. SFL is a category 1 ring-dealing member of the London Metal Exchange. In addition SFL also engages in other physically delivered commodities business and other general business activities which are unregulated and not required to be authorised by the Financial Conduct Authority. StoneX Group Inc. acts as agent for SFL in New York with respect to its payments services business. StoneX APAC Pte. Ltd. acts as agent for SFL in Singapore with respect to its payments services business. ‘StoneX’ is the trade name used by StoneX Group Inc. and all its associated entities and subsidiaries.
 
Trading swaps and over-the-counter derivatives, exchange-traded derivatives and options and securities involves substantial risk and is not suitable for all investors. Past performance of any futures or option is not indicative of future success. Indicators are not a trading system and are not published as a specific trade recommendation. The information herein is not a recommendation to trade nor investment research or an offer to buy or sell any derivative or security. It does not take into account your particular investment objectives, financial situation or needs and does not create a binding obligation on any of the StoneX group of companies to enter into any transaction with you. You are advised to perform an independent investigation of any transaction to determine whether any transaction is suitable for you. No part of this material may be copied, photocopied or duplicated in any form by any means or redistributed without the prior written consent of StoneX Group Inc.
 
© 2026 StoneX Group Inc. All Rights Reserved.

Satellite view of Earth at night showing illuminated cities across Asia and the Middle East

Discover more insights

Our subscribers have access to comprehensive market analysis from StoneX spanning commodities, equities, currencies and more.

StoneX: We open markets

Our market expertise, advanced platforms, global reach, culture of full transparency and commitment to our clients’ success all set us apart in the financial marketplace.

Reach

With access to 40+ derivatives exchanges, 180+ foreign exchange markets, nearly every global securities marketplace and numerous bi-lateral liquidity venues, StoneX’s digital network and deep relationships can take clients anywhere they want to go.

Transparency

As a publicly traded company meeting the highest standards of regulatory compliance in the markets we serve; our financials and record of accomplishment are matters of public record. StoneX’s commitment to “doing the right thing over the easy thing” sets us apart in the industry and helps us build respect, client trust and new partnerships.

Expertise

From our proprietary Market Intelligence platform, to “boots on the ground” expertise from award-winning traders and professionals, we connect our clients directly to actionable insights they can use to make more informed decisions and achieve their goals in the global markets.