Global bond yields hit highest levels since 2008 crisis

Government bond yields across the world have surged to their highest levels since the 2008 financial crisis, raising borrowing costs for governments, companies, and households in a sell-off that stretches from Washington to Tokyo to London.

The 10-year U.S. Treasury yield has climbed above 4.78%, its highest since the onset of the global financial crisis. The 30-year U.S. Treasury yield has reached 5.31%, a level not seen since 2007. In the United Kingdom, the 30-year gilt yield touched 5.89%, its highest since 1998, according to the BBC Barclays PLC ↗ 0.37%, putting pressure on Prime Minister Andy Burnham ahead of his first Budget. A broad gauge of global government bonds has climbed to 3.72%, its highest level since 2008, according to Nigel Green, chief executive of deVere Group.odaily+3

Mortgage Rates Rise as Lenders React

The bond rout is already filtering through to household borrowing costs. On Monday, five major UK lenders — Barclays, Santander Banco Santander, S.A. ↘ 0.80%, TSB, Skipton, and the Nottingham Building Society — announced mortgage rate increases, many in the range of 0.15 percentage points. Mortgage broker Iain Thompson of Evolve Finance called the coordinated repricing "a painful reality check for borrowers," warning that "the window of cheap borrowing is slamming shut". Brokers urged customers with fixed-rate deals expiring within six months to lock in rates immediately.mirror

A Worldwide Repricing of Risk

The sell-off is not confined to Western markets. Japan's 10-year government bond yield has broken above 3% for the first time since 1996, while Germany's 10-year bund yield has risen to 3.38%, its highest since 2011. Countries including China, Brazil, India, and Japan have scaled back investments in U.S. government bonds to reduce exposure to a potential American economic downturn. The Netherlands central bank recently relocated several tons of gold out of the United States and Canada to enhance its "crisis preparedness," while Norway's $2.3 trillion sovereign wealth fund has signaled plans to reduce its U.S. Treasury holdings.abc+1

For developing economies, the consequences are acute. African governments face higher costs to refinance existing debt and issue new bonds, as investors demand greater compensation when safe-haven yields rise. Nigeria, with its large financing needs and exposure to global capital flows, is particularly vulnerable to what deVere's Green described as a "two-decade high" in borrowing costs that is "moving fast enough to blow through mortgage rates, corporate loans and pension valuations before most people have even noticed".businessamlive

Structural Forces Leave Little Room for Relief

Analysts point to deep structural drivers behind the sell-off rather than a single catalyst. Adam Donaldson, head of markets and rate research at Commonwealth Bank, warned that a combination of the AI investment boom, increased defense spending, the net-zero energy transition, and a lack of fiscal discipline is pushing the so-called neutral interest rate higher. BNP Paribas cautioned that 10-year Treasury yields could briefly overshoot toward 5% in the near term. Bank of America's ↘ 0.57% chief investment strategist Michael Hartnett argued that global bond yields at two-decade highs now represent the largest threat to the AI capital expenditure boom, warning that the AI bubble "could burst at any time" as hyperscale cloud vendors' free cash flow has turned negative.wealthmanagement+2

Satyajit Das, an author and former banker, said that with U.S. government debt reaching $40 trillion, inflated stock valuations, and oil prices above $90 a barrel amid military conflict in Iran, "we may be witnessing the beginnings of a crisis".abc