Global foreign exchange markets Report Interpretation

Overview

This weekly global FX report assesses how a hawkish September Federal Reserve decision, central-bank divergence, commodity prices, positioning and regional growth trends are shaping G10 and emerging-market currencies. Its central message is that Fed hawkishness improves the dollar’s tactical support but does not by itself justify a sustained move above summer highs, while the strongest relative opportunities remain in JPY and selected Asia FX themes.

Core views

The report argues that the September FOMC raised the bar for a hawkish policy response without raising the ceiling for the US dollar. The Fed delivered a hike with no dissents, upgraded projections for growth and inflation, lowered unemployment forecasts, and Chair Warsh stressed that policy work was not finished. BofA therefore retains its call for two additional 25bp hikes in October and December. The US rates team targets the two-year Treasury yield at 5%; a hypothetical 30bp move would imply roughly 1.5% DXY appreciation based on the report’s estimated beta, enough to revisit summer highs but not necessarily exceed them. Global data surprises have become more balanced following resilience to the energy shock, reducing the scope for US rate differentials to widen further. The report also finds no evidence of extreme broad USD short positioning, although CAD long positioning screens above the 90th percentile. For G10 FX, BofA remains bullish JPY and forecasts USD/JPY at 149 by year-end, supported by improving Japanese fundamentals and an expectation of faster Bank of Japan hikes. It expects a rate hike accompanied by hawkish communication and sees this policy mix as supportive of long JPY against USD and CHF. A key risk is dissent from dovish BoJ members, which could revive doubts about the government’s tolerance for additional tightening. The report remains constructive medium term on EUR and GBP, positive on AUD and NZD with a near-term preference for AUD, bullish on SEK, and bearish on NOK, CAD and CHF. A one-year extension of the US-China trade truce with narrow goods-purchase and tariff-cut agreements is the base case for the Trump-Xi summit; preserving stability would mitigate an upside tail risk for USD. The report sees rising vulnerabilities in EM FX. Higher US yields and oil prices continue to weigh on the group, while net open interest has risen sharply in popular MXN, ZAR and BRL carry trades. Historically, elevated ZAR positioning and positioning volatility have preceded weaker EM carry performance. The median EM currency trend has turned bearish for the first time since end-July, and low-yield Asian currencies look especially vulnerable as yields rise. MYR and THB rank least attractive on a carry-to-volatility basis, while BofA prefers INR and CNY among Asian oil importers because of their positive carry-to-volatility profiles. Although many EM currencies appear overvalued, most have already weakened more than their historical sensitivity to global factors would imply; HUF is the notable exception, screening rich on the report’s BEER valuation model. Rising European gas prices are identified as a key HUF risk. Asia remains more resilient than expected despite energy shocks, higher G10 yields and weak Chinese growth. BofA upgraded its 2026 EM Asia growth forecast to 4.6% from 4.4% and expects 4.8% in 2027. AI-led semiconductor and DRAM exports support North Asian external balances and currencies, particularly KRW and TWD, while higher oil prices are headwinds for INR, IDR and PHP. The report maintains a bullish USD/CNY year-end forecast of 6.6, citing export-proceeds repatriation, undervaluation and policy bias. It is bullish on TWD due to AI capex and export growth, though Fed hikes are a near-term headwind; it is bearish on PHP because oil-price moves and US-rate repricing are key risks. KRW is a major positive Asia theme. Since late July, KRW has appreciated 13.3% against the dollar, with USD/KRW falling from above 1,550 earlier in the year to a low of 1,334. Corporate net FX sales rose to US$187bn in 1H26 from US$58bn a year earlier, supported by semiconductor export receipts, cash repatriation, shipbuilder hedging and SK Hynix-related inflows. Korea’s July current-account surplus reached a record US$42.1bn, around 350% above a year earlier; foreigners bought US$2.1bn of Korean debt in July, and FX reserves rose US$14.3bn in August, including US$13.6bn after valuation effects. The report sees a more constructive H2 outlook but flags renewed overseas corporate capital deployment and KOSPI volatility as risks to the won. The report also reviews several G10 policy and cross-rate themes. AUD/NZD reached 15-year highs as dovish RBNZ expectations, hawkish RBA expectations and solid Australian data widened rate differentials. BofA sees upside toward 1.25 before New Zealand’s 7 November election if oil rises and equities stay range-bound, while retaining a year-end 2027 target of 1.18. It expects the SNB to hold its policy rate at 0%, retain its language on readiness to intervene in FX markets, and remain on hold until 2028; the report consequently remains bearish CHF. For Sweden, BofA expects the Riksbank to hold at 1.75% and delay the final 25bp hike from September to December. For Norway, it expects a hold at 4.25% but recognizes rising odds of a December hike to 4.50%; softer inflation, easing capacity constraints and NOK strength favor a hold, while energy prices and potential NOK depreciation are upside risks. Its medium-term view remains bullish SEK and bearish NOK. Technical and volatility sections reinforce a selective rather than broad risk-taking approach. The DXY breakout above 100.08 confirmed a double-bottom pattern, with tactical targets of 100.67, 101.17 and 101.80; a break below 99.54 weakens the setup and a close below the 200-day moving average near 99.16 likely invalidates it. G10 implied volatility is low in absolute terms, but muted realized volatility makes broad at-the-money ownership unattractive. BofA is neutral on broad G10 ATM volatility and prefers selected tail-risk and defined-payoff structures, including JPY calendars, JPY-appreciation structures, EUR/USD call spreads, USD/CHF put spreads and USD/CAD call spreads. Rich EUR and GBP forward volatility and the advanced repricing of low-beta FX volatility underpin the preference for asymmetry rather than outright long vega.

Analysis framework

The report combines central-bank policy forecasts, rate-differential analysis, growth and inflation data, balance-of-payments flows, positioning indicators, carry-to-volatility comparisons, medium-term FX forecasts, options-surface analysis and technical chart signals. It then translates these inputs into relative currency views and selected trade structures.

Methodology notes

• MacroeconomicsInterest rate parity

  Interest-rate differentials and real-rate expectations

  The report links expected Fed and other central-bank policy paths to relative yields and FX moves, including its estimate that a 30bp two-year Treasury yield rise could translate into roughly 1.5% DXY appreciation.

• OtherYield curve analysis

  Front-end versus long-end US rate response

  BofA interprets the post-FOMC curve twist, with two-year yields up about 7bp and 30-year yields down about 1bp by the close, as consistent with continued front-end rate pressure.

• Quantitative, Factor, and Portfolio Theory

  Carry-to-volatility, positioning and BEER fair-value screens

  The report compares currency carry against volatility and trend strength, monitors speculative positioning, and uses its BEER model to identify currencies that appear rich or cheap relative to model-implied fair value.

• Event-Driven and Behavioral FinanceEvent-driven analysis

  Central-bank meetings, elections and the Trump-Xi summit

  The report assesses how scheduled policy decisions and political events could alter rate expectations, trade stability, positioning and near-term FX outcomes.

Asset mapping & comparison

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

• JPY

  Preferred G10 bullish currency view

  Strengths

  Improving Japanese fundamentals and expected faster BoJ hikes.

  Comparison

  BofA favors JPY against USD and CHF.

  Risks

  Dovish BoJ dissents could renew concerns about the tolerance for further hikes.

• DXY / USD

  Tactically supported but upside constrained

  Strengths

  Hawkish Fed messaging, higher expected real policy rates and a confirmed technical breakout.

  Weaknesses

  Balanced global data surprises and limited scope for wider rate differentials.

  Comparison

  BofA sees the dollar ending the year at or around current levels versus most G10 currencies.

  Risks

  A sustained failure below technical support or greater clarity on a less hawkish Fed reaction function.

• KRW

  Constructive Asia FX theme

  Strengths

  Semiconductor exports, corporate dollar selling, record current-account surplus, equity and bond inflows.

  Weaknesses

  Negative carry versus the dollar.

  Comparison

  The report describes KRW as moving from last to pole position among Asia FX.

  Risks

  KOSPI volatility and future corporate deployment of cash overseas.

• AUD/NZD

  AUD favored over NZD near term

  Strengths

  Wider rate differentials, hawkish RBA expectations, solid Australian data and energy exposure.

  Comparison

  BofA sees AUD/NZD potentially reaching 1.25 before the New Zealand election and retains a year-end 2027 target of 1.18.

  Risks

  Sharp equity declines, lower oil prices and New Zealand political or policy developments.

• CHF

  Bearish FX view

  Weaknesses

  SNB inflation outlook supports an extended hold while carry dynamics and expected BoJ tightening weigh on CHF.

  Comparison

  CHF is identified as the report’s key short within a volatility-adjusted carry framework.

  Risks

  Geopolitical uncertainty could revive safe-haven demand for CHF.

Key data

• Additional Fed hikes expectedTwo 25bp hikesBofA expects hikes in October and December 2026.
• US two-year Treasury target5%A hypothetical 30bp rise is estimated to imply about 1.5% DXY appreciation, all else equal.
• USD/JPY year-end forecast149Supported by improving Japanese fundamentals and expected faster BoJ hikes.
• DXY tactical targets100.67 / 101.17 / 101.80Double-bottom technical targets while support near 99.16 holds.
• EM Asia growth forecast4.6% in 2026; 4.8% in 2027The 2026 forecast was upgraded from 4.4%.
• KRW appreciation since late July13.3%USD/KRW fell from above 1,550 earlier in the year to a low of 1,334.
• Korean corporate net FX salesUS$187bn in 1H26Compared with US$58bn a year earlier.
• Korea July current-account surplusUS$42.1bnA record level, around 350% higher than a year earlier.
• SNB policy-rate expectation0%BofA expects an unchanged rate and a hold through 2028.

Impact & implications

The report’s framework favors relative and selective FX positioning rather than a broad dollar or volatility view. Fed tightening may support the USD tactically, but global resilience, other hawkish central banks and the absence of extreme USD shorts limit the expected upside. The institution highlights JPY, KRW, CNY, TWD and AUD-related themes as comparatively supported, while identifying crowded EM carry, low-yield Asia FX, CHF and NOK as more exposed to adverse policy, yield or risk-off shifts.

Risks

• Dovish dissents at the Bank of Japan could undermine the long-JPY thesis.
• Crowded carry positioning in MXN, ZAR and BRL may unwind sharply if global conditions deteriorate.
• Higher US yields and oil prices create particular downside risk for low-yield Asian currencies.
• Rising European gas prices are a key risk for HUF.
• KOSPI volatility and renewed overseas corporate capital deployment could weaken KRW support.
• A sharp equity-market decline would be bearish for AUD/NZD and AUD-related views.
• Geopolitical uncertainty could strengthen CHF despite policy-rate divergence.

What to watch

• Fed speakers, US PMIs and whether incoming data validate two additional Fed hikes.
• BoJ communication and any policy dissent following its meeting.
• The Trump-Xi summit and whether it delivers a one-year trade-truce extension.
• SNB, Riksbank and Norges Bank decisions and guidance.
• Oil prices, global yields and speculative positioning in EM carry currencies.
• KOSPI volatility, exporter dollar conversion and portfolio flows affecting KRW.
• New Zealand election developments ahead of 7 November.