France remained the focal point for investors this week, as concerns over the country’s finances reinforced a broader global focus on rising bond yields. However, US equities continued to shrug off the impact of rising yields with the S&P 500 and Nasdaq hitting record highs.
Read this article to understand:
- The reasons for the latest rise in bond yields
- Some of the factors that propelled US equities to fresh highs
- Recent economic developments
France dominated the headlines this week, as bond markets grew increasingly uneasy about government debt on both sides of the Atlantic. The spread between yields of French and German government bonds widened sharply before the French market partially recovered. US Treasury yields climbed to levels not seen since 2002, with the ten-year Treasury yield reaching 5.31 per cent and 30-year yields touching 5.66 per cent.
France has not recorded a budget surplus since 1974, a statistic that increasingly sits at the heart of investors’ concerns
France has not recorded a budget surplus since 1974, a statistic that increasingly sits at the heart of investors’ concerns. Meanwhile, the euro fell to its weakest level against the US dollar since May 2025, while borrowing costs for lower-quality European companies rose appreciably.
For a brief moment on Tuesday, markets found some relief as comments from French political leaders promising tighter control of public spending helped calm nerves and triggered one of the strongest rallies in French government bonds in years. Credit markets improved, government bond yields fell and confidence returned.
However, that optimism proved short-lived as by the following day French borrowing costs were rising again, banking shares were under pressure and the euro had weakened. Several major French banks’ shares lost between three and five per cent in a single trading session.
Energy markets provided a second source of anxiety. Brent crude repeatedly traded above $100 per barrel and briefly approached $106 as tensions in the Middle East raised fears of disruption to global oil supplies.
Investors responded by pushing inflation expectations higher across Europe and the UK, reinforcing concerns that central banks may struggle to bring inflation fully under control. UK government bond yields rose to their highest level since before the financial crisis, highlighting how quickly markets have had to adjust to a world where inflation remains elevated and government borrowing remains substantial.
Undeterred, US equity indices marched to fresh record highs as investors appeared willing to look through a growing list of risks. It was another reminder that equity markets continue to find reasons for optimism even while bond investors remain unconvinced.
The companies driving the artificial intelligence (AI) boom provided much of the market’s momentum, while economic data pointed to a US economy that remains in decent shape. A closely watched survey of activity in the US service sector pointed to healthy expansion of activity and labour market indicators showed little evidence of a meaningful slowdown.
There were however some signs that investors are becoming more selective. Reports suggesting that OpenAI’s annualised revenue may be lower than expected triggered a sharp sell-off across semiconductor stocks, which fell 3.4 per cent on Thursday.
Much of this year’s market leadership has been built on exceptionally high expectations for AI
It was a relatively small story compared with the week’s moves in bonds and oil, but an important one. Much of this year’s market leadership has been built on exceptionally high expectations for AI. The reaction showed how little room there is for disappointment when optimism is already so strong.
Taken together, the week’s events painted a picture of markets wrestling with competing forces. Economic growth remains surprisingly resilient and equity markets continue to push higher, yet bond markets, energy prices and political developments are sending a more cautious message.
For now, investors appear willing to focus on the positives, but the sharp swings seen across bonds, oil and technology stocks suggest that confidence remains vulnerable to any sign that expectations have run ahead of reality.1
Past performance is not a reliable indicator of future results.
Reference(s)
- Source of all the data for this article: Bloomberg. Data as of 9 October 2026.
