Global bonds are under severe pressure from the latest surge in energy prices, inflicting losses on investors who bet on the end of the worst sell-off this year, and putting the credibility of central banks to the test.

UK benchmark government bond yields this week recorded the longest streak of daily closes above 5% in nearly two decades, while German 10-year bond yields reached their highest since 2011, and Japanese yields approached levels not seen since the 1990s.

The yield on the 30-year US Treasury bond also settled just below its highest since 2007, while short-term Treasury yields this week hit their highest in over a year.

Biggest monthly loss since March

The sell-off has been so severe that it pushed the average yield on the Bloomberg Global Aggregate Government Bond Index, which tracks investment-grade sovereign bonds, to 3.68%, surpassing its peak three years ago to reach its highest since the 2008 global financial crisis. The benchmark index is currently on track for its biggest monthly loss since March.

The simultaneous pressure on short- and long-term bond yields comes ahead of a weekend that may see further geopolitical developments. A series of major central bank decisions are also expected next week, including the Federal Reserve, the Bank of Japan, and the Bank of England.

Consequences of Falling Bond Prices and Rising Yields?

A continued sell-off in bond markets would raise concerns about the sustainability of global debt levels, increase borrowing costs for companies worldwide, and heighten the risk of investors shifting away from equities.

Torsten Slok, chief economist at Apollo Global Management in New York, commented on the rise in yields across sovereign debt markets, saying: 'There are many similar forces affecting the market right now.'

He explained: 'Oil prices are rising. This creates problems for the Bank of England, it creates problems for the Federal Reserve, and by the way also for the European Central Bank.'

Middle East Tensions Pressure Bonds

Global debt markets have been under severe pressure this year due to rising energy prices driven by the conflict in the Middle East. While crude prices fell in June as a ceasefire between Iran and the United States took shape, renewed hostilities pushed oil prices back up this month, with Brent crude rising above $100 per barrel on Thursday.

The bond market also faced pressure from the resilience of the US economy, amid continued strength in the labor market and growth figures.

Sat, 27 2026

This has contributed to changing expectations for the Federal Reserve's monetary policy path this year, shifting from cutting interest rates to raising them.

New Fed Chairman's Approach

Traders are also beginning to digest the approach of the new Fed chairman, Kevin Warsh, in restructuring the central bank's communications to reduce forward guidance, increasing the likelihood of any monetary policy change happening sooner than expected.

Bets on an interest rate hike at the Federal Reserve's monetary policy meeting on July 28-29 have risen, with market-implied probabilities currently suggesting a one-in-three chance (33%).

Mark Cabana, head of US interest rate strategy at Bank of America, said: 'We know Warsh does not want to provide forward guidance to the market, and that is acceptable.' 'But in this case, the market will have more ability to price the outcome it thinks the Fed should take, or price an outcome that might push the Fed to consider raising rates.'

The Fed's reduction in forward guidance could mean its next decision may be a surprise regardless of the direction it takes.

Above all, Warsh and his colleagues must convince markets that the central bank has inflation fully under control.

Bond Index Down 20% from Peak

Bond funds continue to suffer the aftermath, as policymakers worldwide were caught off guard by the inflation wave following the COVID-19 pandemic. The Bloomberg Global Aggregate Bond Index remains about 20% below its peak in early 2021.

Analysts at Barclays, including Anshul Pradhan, wrote in a research note on Thursday: 'A rate hike would push markets to reassess the terminal rate at higher levels, leading to a flattening of the yield curve between short- and long-term bonds. A decision to keep rates unchanged, if not well explained, would likely lead to higher long-term interest rates.'

Weak Yen Pushes Up Japanese Bond Yields

Bond prices are also falling in Asia. Japanese 10-year bond yields continue to rise amid concerns that the central bank is not raising rates fast enough to curb inflationary pressures from the yen's decline.

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Thu, 23 2026

This comes despite policymakers showing openness to accelerating the pace of rate hikes, ahead of their upcoming meeting next week.

Traders in the UK will focus on the Bank of England's forecasts and comments by Governor Andrew Bailey to confirm expectations of two rate hikes by year-end. The British central bank is balancing the risks of higher inflation driven by energy prices against a weakening labor market and slowing growth.

Benchmark bond yields in Australia are the highest among advanced economies, with risks pointing to a continued rise.

Next week's inflation data and a speech by Reserve Bank of Australia Governor Michele Bullock could reinforce expectations of a fourth rate hike this year.

Central Banks Decide Based on Historical Data

Pooja Kumra, strategist at TD Securities in London, said: 'Central banks face a complex situation because all confirmed economic data only measures past performance.' 'They are in a difficult position, and this is a situation the whole world is currently suffering from.'

The iShares 20+ Year Treasury Bond ETF, managed by BlackRock, was among the hardest hit; it is widely used by investors to invest in US long-term government debt.

The ETF's share price fell by nearly 5% over the past month, bringing its cumulative losses to more than half its value recorded in 2020.

Atsi Sheth, chief credit officer at Moody's Ratings in New York, said: 'We believe we have entered a new macroeconomic phase.' This means 'structurally higher inflation, and consequently higher interest rates, along with widening fiscal deficits, and the potential for heightened global uncertainty and its burden on government budgets.'