European bond markets are repricing sovereign risk, with institutional capital fleeing fiscally weaker nations into German safe-haven assets. France's 10-year yield jumped 70 basis points in September to its highest since 2002, compressing the country's fiscal runway as borrowing costs climb.
The spread between French and German 10-year yields climbed to nearly 160 basis points last week—the widest since 2012—before narrowing earlier this week and re-widening on Wednesday. Investors cite France's budget deficit overshooting the 5 percent EU target and political uncertainty ahead of the 2027 presidential election as primary catalysts. The government plans to issue a record €340 billion ($381 billion) in bonds during 2027 to refinance pandemic-era debt and fund operations, a supply backdrop that weighs on prices as spreads widen.
Italy faces sharper contagion. The 10-year Italian-German spread blew out to 130 basis points last week from 80 basis points a month earlier after Rome announced its deficit will breach the 3 percent EU ceiling. The country's public debt—at 138.6 percent of GDP—is on track to surpass Greece's this year, the highest in the bloc. Milan projects debt will not begin falling until 2028.
"We're seeing bond vigilantes punishing those countries that investors do not believe are fiscally disciplined," said Kristina Hoo Chief Market Strategist at Man Group. The dynamic spans Europe: Greece's spread hit two-year highs, while Belgium's 10-year yield rose 49 basis points in September, steeper than most peers except France. Spain and British bonds have weathered the selloff with relative resilience.
Political calendars amplify duration risk. Beyond France's 2027 election, Italy faces elections next year, a source of policy uncertainty, according to Davide Oneglia, European and global macro director at TS Lombard. The market's renewed emphasis on fiscal metrics reflects a recalibration of risk that, while significant, remains far below 2011-2012 crisis peaks—when Italy's spread exceeded 500 basis points and Greece's topped 3,000. Analysts project the euro could weaken to $1.10 under ongoing pressure.
