Policy pushback intensifies, but FX trends still require fundamental confirmation

Overview

This report discusses major global FX themes, focusing on JPY, USD, GBP, BRL, EM carry, CHF, and IDR. Its core judgment is that recent policy pushback and central-bank signals have indeed affected FX prices, but most trends still require support from fundamentals such as growth, inflation, policy paths, or capital flows to persist.

Core views

Goldman Sachs believes that JPY intervention can buy time for authorities, but without changes in the policy mix, global growth outlook, or Japanese capital repatriation trends, the yen will struggle to strengthen sustainably through gradual BoJ rate hikes alone. The dollar may remain relatively stable in the near term, particularly against low-yielding G10 currencies; investors should not over-position for dollar weakness before inflation data clearly soften. Near-term GBP risks are more balanced, but sterling may still underperform over the medium term due to fiscal premia and declining BoE rate-hike pricing. Recent BRL strength is supported by terms of trade, but election and fiscal risks will increase volatility. EM carry still offers opportunities, but the combination of long positions, funding currencies, and carry-to-vol needs to be optimized. CHF has medium-term appeal as a funding currency. The IDR outlook has weakened and is expected to underperform other North Asian currencies.

Analysis framework

The report applies frameworks covering macro policy events, central-bank reaction functions, interest-rate differentials and terminal-rate pricing, terms of trade, energy prices, fiscal risks, election risks, capital flows, and carry-to-vol to cross-check directional and relative-value opportunities across currencies.

Methodology notes

• Macro FX strategyPolicy intervention and fundamental consistency analysis

  Assess whether FX intervention can establish a sustained trend

  The report believes intervention can support the JPY in the short term, but its sustained effectiveness will decline if currency depreciation is consistent with macroeconomic and market fundamentals; changes in the policy mix, global growth, or capital repatriation are needed to strengthen its long-term impact.

• Relative valueCarry-to-vol analysis

  Measure the attractiveness of currency allocations by carry returns relative to volatility

  The report compares carry and carry-to-vol across EM currencies, finding BRL and COP to be the leaders, while MXN, INR, and ZAR require selection based on local policy, energy sensitivity, and risk exposure.

• Macro riskFiscal and political risk premia

  The impact of fiscal constraints and election events on exchange rates

  The report identifies the UK's fiscal premium, Brazil's elections and fiscal deficit, and Indonesia's fiscal-deficit ceiling and subsidy policies as important sources of currency downside or volatility risk.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• JPY

  Japanese intervention and signals of US cooperation provide short-term support for the yen

  Strengths

  The scale of intervention may be among the highest in history, and policy signals support the JPY against both the USD and EUR.

  Weaknesses

  The market reaction is below historical averages, and most of the BoJ's gradual rate hikes have already been priced in.

  Comparison

  Compared with historical interventions, this round remains meaningful but has diminishing marginal effects.

  Risks

  If recent appreciation reverses, Japan may continue to intervene; without capital repatriation or changes in the policy mix, the JPY will struggle to strengthen sustainably.

• USD

  Near-term negative factors are limited, and the dollar may remain relatively stable against low-yielding G10 currencies

  Strengths

  FX volatility is low, with no evidence of a breakthrough in growth concerns or policy divergence; DXY may strengthen over the next several weeks due to short-term position adjustments.

  Weaknesses

  FOMC policy surprises and data developments are mildly unfavorable for the dollar.

  Comparison

  High-yielding currencies have greater upside potential than low-yielding G10 currencies.

  Risks

  If inflation data weaken materially, dollar-down trades may gain stronger fundamental support.

• GBP

  Near-term risks are more balanced, but sterling is still expected to underperform over the medium term

  Strengths

  The divergence between EUR/GBP and cyclical fundamentals narrowed after the rebound in the second half of July, and short-term volatility may be moderate.

  Weaknesses

  Fiscal premia, energy prices, and rising Gilt yields may amplify fiscal challenges, while BoE rate-hike pricing may decline.

  Comparison

  The report has closed its tactical short GBP/USD recommendation after realizing a small potential profit, but retains a medium-term bearish view on sterling performance.

  Risks

  Fiscal volatility may return around the autumn budget, potentially causing brief but asymmetrically negative pressure on sterling.

• BRL

  Strength is supported by terms of trade, but the path is volatile

  Strengths

  Improving Brazilian terms of trade and a more benign EM risk backdrop support the BRL, making it one of the leading currencies for carry and carry-to-vol.

  Weaknesses

  The BRL has recently outperformed the model by approximately 3%, leaving limited risk premium at present.

  Comparison

  Compared with most EM currencies, BRL and COP have clear advantages in carry and carry-to-vol.

  Risks

  Election news, worsening fiscal deficits, rising debt/GDP, and higher long-term US Treasury yields could undermine BRL long positions.

• EM Carry

  Relative-value opportunities remain, but long and funding currency selection must be more refined

  Strengths

  A dovish FOMC and JPY intervention have reduced the tail risk of disruptive Fed tightening and dollar strength.

  Weaknesses

  Long-end US Treasury selloffs and high energy prices remain the main risks.

  Comparison

  BRL and COP lead; MXN is relatively preferred, followed by INR and ZAR; greater caution is warranted on IDR.

  Risks

  Persistently high energy prices, local policy shocks, and pullbacks in risk assets may weaken total returns.

• CHF

  Offers medium-term appeal as a funding currency

  Strengths

  The SNB's unchanged policy, moderate Swiss inflation, and wide policy differentials support carry-to-vol performance in USD/CHF and EUR/CHF.

  Weaknesses

  This week, CHF rebounded in a funding-currency-covering move amid spillover from JPY intervention.

  Comparison

  The report ranks CHF as the preferred G10 funding currency, followed by EUR and CAD.

  Risks

  Japanese policy intervention may spill over into diversified funding baskets, meaning CHF funding trades may still not fully avoid volatility.

• IDR

  The outlook has weakened, and the currency is expected to underperform other North Asian currencies

  Strengths

  BI rate hikes and measures to attract capital inflows provide some support, while S&P continues to affirm Indonesia's BBB rating with a stable outlook.

  Weaknesses

  High oil prices, the unexpected resignation of the central-bank governor, natural-resource export regulations, fuel subsidies, and fiscal concerns related to the free-meal program are weighing on the IDR.

  Comparison

  Goldman Sachs has raised its USDIDR 3M/6M/12M forecasts to 18,200/18,300/18,500, significantly weaker than the previous path.

  Risks

  Uncertainty over the direction of monetary policy, pressure from the fiscal-deficit ceiling, and higher energy prices could further weaken the IDR.

Key data

• USDIDR forecasts18,200 / 18,300 / 18,500For 3M/6M/12M, compared with Goldman Sachs' previous forecasts of 17,000 / 17,100 / 17,200.
• BCB policy expectations25bp cut to 14%The report says the Brazilian central bank is widely expected to cut rates at next week's meeting, with weaker-than-expected IPCA-15 supporting a rate cut.
• Cumulative BRL excess performanceApproximately 3%Since the start of the Iran conflict, recent BRL appreciation has produced approximately 3% cumulative excess performance relative to model inputs.
• UK autumn budget date2026-10-28The report believes fiscal volatility may intensify again as the autumn budget approaches.
• Brazilian candidate registration deadline2026-08-15Party conventions are underway, and election-related news may affect BRL volatility.
• Indonesian sovereign ratingBBB, stable outlookS&P affirmed the rating on July 13, saying that the central-bank governor's resignation increased uncertainty over policy direction but did not affect the rating.

Impact & implications

For investors, the report suggests avoiding trend-following dollar-down or one-way JPY-appreciation trades based solely on policy pushback. More actionable directions are to maintain selective EM carry, use low-yielding currencies such as CHF on the funding side, monitor election-related volatility risks amid BRL strength, and remain defensive on the IDR. FX trading should place greater emphasis on the joint constraints imposed by inflation data, energy prices, long-term US Treasury yields, and local political and fiscal events.

Risks

• Inflation data that materially diverge from expectations could alter the direction of the dollar, Fed pricing, and global carry trades.
• Further Japanese intervention could trigger short-term squeezes in the JPY and other funding currencies.
• High energy prices could pressure currencies of energy-importing countries and alter the risk-reward structure of EM carry.
• Continued increases in long-term US Treasury yields could weigh on high-yielding EM currencies, particularly assets such as BRL that are sensitive to US rates.
• Fiscal and political events in the UK, Brazil, and Indonesia could trigger localized FX volatility.

What to watch

• Whether subsequent US inflation data support a clearer dovish dollar trade.
• Whether Japan continues to intervene when the JPY gives back its gains, and whether policies encouraging capital repatriation emerge.
• Changes in the fiscal premium before and after the UK's autumn budget on October 28, 2026.
• Election news, the fiscal deficit, and the BCB policy path around Brazil's August 15 candidate registration deadline.
• The combined impact of energy prices and long-term US Treasury yields on EM carry portfolios.
• Indonesia's new central-bank governor, natural-resource export regulations, and policies related to the fiscal-deficit ceiling.