FX markets turn defensive as oil and bond yields climb
Market overview
A more defensive tone has taken hold across FX markets as surging oil prices, higher global bond yields and renewed policy tightening expectations reshape the outlook. Brent has risen roughly 10% this week to around $105, intensifying concerns that the US-Iran standoff could deliver a fresh inflation shock just as central banks were hoping price pressures were easing.
Rates markets have reacted sharply. Front-end yields have moved higher across major economies, while the US 10-year Treasury yield is again approaching 5%. Equity markets have weakened, volatility has picked up and higher-beta currencies, particularly in CEE and the antipodean bloc, have come under pressure. The dollar has regained its defensive appeal, sterling is drawing some support from stronger UK growth, while the euro is struggling to benefit from higher ECB rates as investors weigh tighter policy against the region's sensitivity to energy costs.
USD: CPI could unlock a September hike
The dollar has strengthened as safe-haven demand combines with a renewed rise in US rate expectations. Markets are now assigning roughly a 70% probability to a Fed hike next week, leaving today's August CPI release as the final major hurdle.
Headline inflation is expected at 3.4% year-on-year, unchanged from July, with consensus looking for monthly increases of 0.4% in headline CPI and 0.2% in core. Even a modest upside surprise could be enough for markets to move towards fully pricing a September increase.
Producer price data kept the inflation debate alive. Headline final demand rose 0.4% month-on-month, while core PPI increased 0.2%. The broader picture continues to point towards an externally driven inflation shock, with higher energy prices doing much of the work.
Bond markets are also becoming more supportive for the dollar. The 10-year Treasury yield has risen almost 20 basis points this week and is trading just below 5%, while the Treasury's relatively modest buyback programme has allowed longer-dated yields to remain elevated. A positive relationship between the dollar and US back-end rates appears to be rebuilding.
A weaker CPI reading would likely trigger some dollar profit-taking, although the hurdle for a full dovish reversal looks high. Oil has risen around 15% since the Fed's previous inflation assessment, meaning policymakers may remain concerned even if underlying inflation shows further improvement.
With geopolitical risk elevated, bond market stress beginning to weigh on equities and the yen's recent rally losing momentum, the balance of risks continues to favour the dollar. DXY at 100 increasingly looks achievable rather than an aggressive upside target.
GBP: Growth resilience meets a tougher rates backdrop
Sterling is slightly firmer after UK GDP delivered another upside surprise. The economy expanded 0.4% month-on-month in July following a 0.3% increase in June, comfortably beating expectations for no growth. Services, production and construction all contributed, while the three-month growth rate held at 0.4%.
The figures reinforce the view that the UK economy has retained more momentum than expected. Technology remains a particularly strong contributor, with IT accounting for a disproportionate share of annual growth and raising the possibility that investment linked to AI is beginning to show through in the data.
Sterling has responded positively, with both GBP/USD and GBP/EUR recovering some ground, although the reaction remains contained. Global rates continue to dominate. UK gilts have followed Treasuries lower, with the 10-year yield approaching 5.5% and the 30-year close to 6.0%.
Importantly, sterling's relative stability suggests the latest gilt weakness is being viewed primarily as part of the global bond sell-off rather than as a renewed UK-specific fiscal event. That distinction remains supportive for the pound in the near term.
The medium-term risk is that markets may be pricing too much Bank of England tightening. Around 48 basis points of hikes are priced by year-end and roughly 110 basis points by next July. If the Bank ultimately delivers significantly less than this, sterling would be exposed to a sizeable dovish repricing.
For now, resilient growth is providing a cushion, but we continue to see scope for EUR/GBP to move higher and GBP/USD lower, with fourth-quarter targets of 0.87 and 1.33 respectively.
EUR: Higher rates offer limited protection
The ECB raised the deposit rate by 25 basis points to 2.50%, with President Lagarde delivering a firmly hawkish message. She described the decision as a "no-brainer", pointing to Middle East tensions and the risk that inflation remains above target for longer.
Rates markets responded accordingly, but the euro reaction was subdued. The single currency gained against some higher-beta currencies, although much of that move appeared to reflect broader risk aversion rather than direct support from the ECB.
The problem for the euro is increasingly one of policy trade-offs. Higher rates would normally improve its relative yield appeal, but when tightening expectations are being driven by an oil shock, investors must also account for weaker growth and the eurozone's reliance on imported energy.
Markets are already positioned for a relatively hawkish ECB path, limiting the scope for further positive surprises. Additional tightening could therefore become counterproductive if investors begin to see policy as excessively restrictive.
That leaves the euro in an uncomfortable position. More tightening risks damaging the growth outlook, while a pause could trigger a sharp dovish repricing. For now, higher rates alone may not be enough to generate sustained euro strength.
Looking ahead
US CPI: The key event today. An upside surprise could push markets towards fully pricing a Fed hike next week and provide another leg higher for the dollar.
Oil: Further gains would strengthen the inflationary case for tighter policy while adding pressure to global growth and risk assets.
Bond markets: Treasury, gilt and eurozone yield moves remain central to FX direction as financial conditions tighten.
Fed: Attention turns to whether policymakers validate the market's increasingly hawkish September pricing.
GBP: Stronger growth is supportive, but elevated BoE tightening expectations leave sterling vulnerable if policymakers push back.
EUR: The market will assess whether the ECB can maintain its hawkish stance without increasing concerns over eurozone growth.