On Wednesday, September 30th, French sovereign bond pricing brought fiscal and political premiums from the background noise to the forefront. The yield on French 10-year bonds traded between 4.74% and 4.80% around September 29th, compared to around 3.5% a year earlier, with some quotes reaching levels rarely seen since 2008. During the same period, the yield on German 10-year bonds was around 3.56% to 3.63%. The spread between the two countries' 10-year yields exceeded 100 basis points for the first time since 2012 on September 18th, subsequently widening to approximately 111 to 120 basis points. The French 5-year credit default swap spread rose to approximately 59 to 65 basis points during the same period. French Prime Minister Sébastien Le Corny posted a message that day stating, "Reality has caught up with us," noting that French 10-year financing costs were close to 4.8%, with energy shortages pushing up interest rates in many countries, and political uncertainty surrounding the upcoming presidential election adding further pressure. He also cautioned against adding further instability to existing difficulties. The cabinet will review the 2027 reform bill, and the market is measuring the deficit path, parliamentary enforceability, and supply size, not just slogans.

The Franco-German interest rate differential measures the French premium.

Equating a rise in French yields directly with a shift in the Eurozone interest rate center confuses the two sets of pricing. German bonds bear the Eurozone's policy path, term premium, and inflation compensation, while French bonds charge an additional country premium on top of this. Therefore, observing the remaining gap after the change in German yields is crucial to determining whether investors are pricing in French fiscal and political risks separately. In late September, this gap was significantly higher than the year's low: the 10-year German-French yield spread has fluctuated roughly between 55 and 120 basis points over the past year, with recent readings near the upper end of this range. The long end also gives a consistent signal. The French 30-year fixed-term yield is around 5.34%, and the German 30-year yield is around 3.90%, with the long-term spread not narrower than the 10-year spread. The curve shape suggests that pricing is not merely waiting for the next ECB decision, but rather adding a premium to fiscal sustainability and refinancing conditions over a longer debt lifespan. Another comparison is even more striking: the 10-year yield in Italy is about 4.57% to 4.58%, while the 10-year yield in France is higher than that in Italy, and credit default swaps were once more expensive than those in Italy.

France rewrote the supply narrative on the deficit

French official figures show that the public deficit in 2025 was approximately 5.1% of GDP. The 2026 target was initially lowered to around 5.0%, but was subsequently revised upwards to 5.4%. The expected growth for the same period was lowered from approximately 1.0% to approximately 0.5%. The debt ratio is expected to rise from approximately 115.7% at the end of 2025 to approximately 119.3% in 2026, and potentially to approximately 121.7% in 2027. If current policies are maintained in 2027 without new adjustments, official estimates suggest the deficit could rise to approximately 6.5%. Interest payments are a channel that transforms existing debt into liquidity pressure. Materials submitted by the French Ministry of Finance to the High Council of Finance indicate that the medium- to long-term net issuance plan for 2027 is approximately €340 billion, with interest payments potentially rising to around €72.9 billion. Debt management institutions face the simultaneous occurrence of larger rollovers and higher refinancing costs. Le Kohn proposed a restructuring effort of approximately €54 billion, aiming to reduce the 2027 deficit to approximately 5.0%. The numbers are just the beginning. A minority cabinet must piece together a combination of spending cuts and revenue measures in Parliament, while pensions, social security, and local spending are all rigid.

Political premium was written into the curve in advance.

With the French presidential elections approaching in April and May 2027, polls show Marine Le Pen with approximately 35% to 36% approval rating in the first round, while Jean-Luc Mélenchon has a chance to advance to the second round. The market doesn't need to bet on the final winner; it only needs to price the variance of the policy set. The current government is also constrained by the system. Parliament lacks an absolute majority, and in recent years, budgets have repeatedly relied on Article 49, Paragraph 3 of the Constitution to pass, with precedents for cabinet changes. The 2027 draft bill still needs to complete parliamentary procedures in the autumn. Le Kohn's juxtaposition of rising interest rates with electoral uncertainty is tantamount to acknowledging that the political premium has entered the issuance window. For the yield curve, this means that a portion of the term premium comes from policy feasibility, rather than simply growth or inflation expectations.

Issuance, Curve and Eurozone Comparison Framework

The French government bond market remains deep, but relative pricing has been rearranged. The interest rate spreads of Belgium and Spain against Germany are significantly lower than those against France, and Italian short-term and medium-term bonds are no longer automatically more expensive than French ones. The simultaneous rise in credit default swaps and spot bond spreads indicates that pressure exists not only in spot bond selling but also in hedging demand. Short-term bonds are more anchored to the ECB's policy rate and short-term euro rates, while long-term bonds are influenced by fiscal supply, election variance, and term premium. Separating short-term and long-term bonds is crucial to avoid misinterpreting a global interest rate fluctuation as a French-only shock, and also to avoid misinterpreting a French-only shock as a systemic event in the Eurozone. With net issuance amplified in 2027, the coverage multiple, investor structure, and residual distribution in the primary market will become high-frequency indicators. The secondary market will continue to be cross-validated using interest rate spreads against Germany, Italy, and five-year credit default swaps.