Key Highlights

● The French-German 10-year yield gap widened to its largest since 2011.

● France's 10-year yield rose above the US 10-year yield for the first time since 2013.

● German Bund yields had their largest drop since May 2025 on safe-haven demand.

● The 10-year yield fell below a key threshold for the first time since September 22.

The gap between French and German government borrowing costs widened to its largest since 2011 on Thursday, October 22, highlighting investor unease about France's finances.

The spread between the two countries' 10-year bond yields is closely watched as a gauge of how much risk investors see in French debt compared with Germany, the euro zone's benchmark borrower. The last time it was this wide, the euro zone was in the grip of its sovereign debt crisis.

A striking milestone

The widening came with another notable milestone. France's 10-year yield rose above the US 10-year Treasury yield for the first time since 2013.

That marks a sharp reversal. US borrowing costs have generally sat above those of major euro zone economies for years, reflecting higher US interest rates. For France now to pay more than Washington to borrow for a decade suggests investors' view of French risk has shifted.

Why France is under pressure

France has been dealing with domestic unrest and a heavy debt load, with public debt that now exceeds the size of its annual economic output. Political uncertainty adds to the strain.

"With elections not for another six months, France's bond market could remain a source of volatility," one strategist said.

Two sides of the spread

The spread widened partly because German Bunds rallied hard. Bund yields posted their largest drop since May 2025, as investors sought safety amid a global selloff in technology stocks. When investors rush toward the euro zone's safest bonds, the gap with riskier government debt tends to widen.

That flight to quality was visible in the United States as well. US Treasuries rallied sharply, and the 10-year yield closed back below a closely watched threshold for the first time since September 22. Reports differed on how big the move was by historical standards, with some calling it the biggest one-day drop since August 2025 and others pointing further back.

"Treasuries rallied overnight as tech stocks came under pressure amid renewed AI valuation fears," one rates strategist said.

Stocks feel the strain

European equities posted their biggest drop in three weeks, and France's CAC 40 slid. On Wall Street, the Nasdaq Composite sank 694 points to 26,008.86 and the S&P 500 fell 93.74 points to 7,663.43, its worst day since July.

The selloff was driven by worries about artificial-intelligence spending after Meta Platforms (NASDAQ:META) projected 2026 capital spending of $135 billion to $145 billion. Higher oil prices also weighed, with Brent crude settling at $113.17, its highest since May 4.

Some commentators have questioned whether government bonds still protect portfolios. One columnist wrote of bonds: "They are no longer the hedge or portfolio diversifier they used to be." Thursday's moves showed a split: safe-haven Bunds and Treasuries rallied, while French debt lagged.

In currency markets, the euro traded around $1.1218, while the Swiss franc and yen led gains among major currencies.

Paris Politics and the Fed Decision Ahead

Investors will watch whether the French-German spread keeps widening or stabilizes in coming sessions. Any political developments in Paris could move the market quickly.

S&P Global's purchasing managers' index data on Friday, October 23, will offer a fresh read on business activity. The US Federal Reserve's rate decision on October 28 could also sway global bond markets.