The United States dollar reached a 17-month high against the euro, driven by surging Treasury yields and escalating energy inflation fears, while global bond markets experienced heavy selling pressure across the United States and Europe.
The dollar climbed to its highest level against the euro in 17 months amid a broader sell-off in government bonds spanning both sides of the Atlantic. The European currency dropped below 1.123 dollars for the first time since May 2025, pressured by a dollar that gained strong momentum over a two-month span. That strength was bolstered by the largest quarterly rise in Treasury yields since 1994, according to market data.
Currency strategists point to a mix of fiscal anxieties and monetary policy expectations as the primary catalysts behind the market shift. Brian Dingerfield, head of G10 FX research at NatWest Markets, noted that rising yields stem from overlapping pressures.
Brian Dingerfield noted that “the rise in yields is driven by a combination of factors, notably concerns about fiscal policy, including some weakness in French bond markets that could spill over into global markets, as well as ongoing concerns about energy prices and high inflation.”
Dingerfield added that markets anticipate ongoing monetary tightening from central banks, including the Federal Reserve, despite brief pullbacks following personal consumption expenditure data releases.
Treasury Yields Touch Highest Levels Since 2002
Benchmark 10-year Treasury yields touched their highest levels since 2002 during the trading session, reflecting intense upward pressure on long-term borrowing costs. The Bloomberg Spot Dollar Index rose 1.9% in September, hitting a two-month high supported by robust domestic economic data and lingering inflation risks. At the same time, the yield on 30-year bonds climbed to levels not seen since 2002.
Traders are currently pricing in roughly one percentage point of cumulative interest rate increases from the Federal Reserve over the next twelve months. Brent Donnelly, head of FX trading at Spectra Markets, observed that macroeconomic divergences are widening the gap between the U.S. and Europe. While the American economy operates at a brisk pace, European counterparts face structural headwinds.
Brian Dingerfield noted that “markets expect central banks to continue tightening monetary policy, including the Federal Reserve. We have seen some pullback over the past few days, specifically following yesterday’s personal consumption expenditures data. But I believe the general outlook favors the continuation of monetary tightening by the Federal Reserve.”
Weighing on global market sentiment, the conflict in Iran has kept energy prices elevated, threatening a renewed wave of global inflation. Data released showed U.S. inflation rising less than expected in August alongside downward revisions for July, briefly cooling expectations for an immediate rate hike this month. Federal Reserve officials, however, have maintained a cautious stance on monetary easing. New York Fed President John Williams remarked that there is no need to rush
in raising interest rates, while Governor Michael Bar highlighted the necessity of further raises to curb inflation.
French Bond Yields Climb to 14-Year Highs
The widening economic divergence is felt acutely in Europe, where nations grapple with fragile fiscal positions and elevated energy costs. European benchmark gas prices surged earlier in the month to their highest levels since 2022, compounding industrial pressures across the continent. Political gridlock and debt concerns in France pushed French bond yields to 14-year highs.
The yield spread between French and German sovereign bonds widened to more than 115 basis points, marking its widest margin since 2012 according to market tracking data. These mounting strains weighed heavily on the euro, which tumbled approximately 2.5% against the dollar in September for its largest monthly decline in 14 months.
| Currency / Asset | Market Movement | Timeframe |
|---|---|---|
| Bloomberg Spot Dollar Index | Up 1.9% | September |
| Euro vs. USD | Down ~2.5% | September (14-month low) |
| U.S. 30-Year Treasury Yield | Highest since 2002 | Monthly Session |
| French-German Yield Spread | Exceeded 115 basis points | Widest since 2012 |
Swiss Franc Weakens Against the Dollar
The dollar’s aggressive momentum swept across nearly all G10 currencies through the end of September. The greenback notched gains for the sixth quarter against a broader currency basket, marking its longest winning streak since 2022. The Swiss franc weakened against the dollar to 0.8358, reaching a 16.5-month low, while the Australian dollar slipped below 70 U.S. cents following domestic inflation figures that fell short of forecasts.
Major financial institutions have adjusted their portfolios to reflect the shifting economy. Morgan Stanley abandoned its earlier projection for a weaker dollar in the second half of 2026, realigning its strategy with resilient U.S. growth data and wider interest rate differentials.
The Japanese yen stood as a notable exception among major currencies. Supported by intervention warnings from Tokyo and Washington alongside expectations of further policy tightening by the Bank of Japan, the yen managed a 1.5% gain against the dollar in September, reversing losses sustained earlier in the quarter.
Upcoming Jobs Report Tests Market Bets
Market participants are now turning their attention toward labor market indicators to gauge the durability of the dollar’s rally. The upcoming U.S. jobs report, scheduled for release on Friday, will test aggressive market bets on monetary tightening. Ahead of the data, some analysts warn that the currency may be approaching overbought territory.
Noah Bofam, a strategist at CIBC Capital Markets, noted that the dollar has begun to look stretched, while Goldman Sachs’ Kamakshya Trivedi projects the currency will trade within its established range as markets weigh the likelihood of further rate adjustments.
