The single currency fell to its weakest level against the dollar since May 2025 in Asian trading. Rating reviews on Oct. 23 and Nov. 27 and a snap election in Spain give the market a calendar to trade.
What began as a French bond market story is now a currency story.
The euro dropped to $1.1161 in Asian trading on Monday, its weakest level since May 2025, after four straight weekly declines. It recovered partially and traded at $1.1215, down 0.38% on the day, by early morning in New York. The dollar index stood at 101.89.
The pressure has been building in French government debt. On Friday, the gap between 10-year French and German yields widened by as much as 18 basis points to 159 basis points, the widest since late 2011, before settling near 141. The French 10-year yield touched 4.995% intraday and closed at 4.87%, while the German 10-year closed near 3.46%. Italian and Belgian bonds also weakened, raising the question of whether the stress is spreading.
What is driving it
France's 2027 budget targets a deficit of 5% of gross domestic product, built on €54 billion of consolidation that the country's own fiscal watchdog has called "optimistic." The French treasury plans a record €340 billion of borrowing. Investors are being asked to absorb that supply as euro-area inflation runs at 3.8%, which limits how far the European Central Bank can lean against widening spreads without undermining its inflation fight.
Spain added a second political variable. Prime Minister Pedro Sánchez called a snap election for Nov. 29. The euro's low preceded the European morning, however, so the Spanish announcement cannot account for the Asian-session move.
Country risk or euro risk?
There are three ways to read Monday's move, and they point to different trades.
The first treats it as a French problem. The next scheduled catalysts are France-specific: Moody's, which rates France Aa3 with a negative outlook, is due to review the country on Oct. 23, and S&P Global, at A+ with a stable outlook, on Nov. 27. On this view, the spread is the asset to watch and the euro is collateral damage.
The second treats it as contagion. Weakness in Italian and Belgian debt, Spain's election and Thursday's meeting of euro-area finance ministers all point toward a regionwide risk premium.
The third locates the cause across the Atlantic. With the 10-year Treasury yield above 5.2%, the dollar has its own pull, and part of the euro's decline is dollar strength that would have occurred regardless of Paris.
The arithmetic offers a partial test. If the euro is falling mainly on French risk, it should track the OAT-Bund spread day to day. If it is falling mainly on dollar strength, it should move with Treasury yields even on days when French spreads are calm.
Why it matters beyond Europe
A weaker euro tightens financial conditions in the euro area through higher import costs, while easing them in the U.S. only slightly. For American multinationals, it reduces the dollar value of European earnings in the coming reporting season.
What to watch: Monday's closing level for the French-German spread, Thursday's Eurogroup meeting, and Moody's review on Oct. 23. A spread back above 150 basis points with the euro under $1.12 would confirm that the bond market is setting the currency's direction.