Global bond yields hit 20-year highs amid ‘fiscal train wreck,’ analyst warns

Long-term government bond yields are climbing across developed economies as the accumulated weight of pandemic-era borrowing, persistent budget deficits, and rising defense expenditures reshapes the global fixed-income landscape, according to a new analysis from Brookings Institution senior fellow Robin Brooks.

A 20-Year High in Forward Yields

In a Substack post published Monday titled "The Global Fiscal Train Wreck," Brooks argued that the U.S. 10-year-10-year forward yield — a measure of where markets expect long-term rates to be a decade from now — has risen to its highest level in 20 years. The move is not confined to the United States. Forward yields across key G10 economies are climbing in tandem, reflecting what Brooks described as the delayed consequences of a "global debt binge" during the COVID pandemic.robinjbrooks.substack

Brooks, a former chief FX strategist at Goldman Sachs The Goldman Sachs Group, Inc. ↘ 0.01% who is now at Brookings, identified three forces converging: massive pandemic-era deficits whose adverse effects are only now materializing; fiscal policy that has "come untethered" in a non-crisis environment; and elevated geopolitical risk that is forcing higher defense spending on countries already stretched thin.brookings+1

Markets Demanding a Higher Price

The analysis lands amid a broader rise in global yields throughout 2026. The 10-year U.S. Treasury US 2-Year Treasury Note ETF ↗ 0.04% yield surpassed 4.6% in late July, more than 60% above the 2.8% average of the past decade, according to the Committee for a Responsible Federal Budget. BlackRock's ↗ 1.54% investment institute noted last week that more than 80% of the global bond universe now yields above 4%, compared with roughly 20% in the pre-pandemic decade.crfb+1

Brooks pointed to U.S. debt issuance running at seven percent of GDP in the year through the first quarter of 2026 — despite the absence of a crisis-level shock — as evidence that fiscal discipline has eroded across political administrations. Germany, once a safe-haven benchmark, is no longer trading as one because it is absorbing disproportionate costs from European defense and Ukraine aid, he argued.robinjbrooks.substack

The "Debasement Trade" and What Comes Next

The fiscal strain is feeding what Brooks calls the "debasement trade." Gold has risen nearly ten percent since the Federal Reserve's last meeting on July 29, he noted, as markets grow concerned about "fiscal capture" of monetary policy. Pressure on central banks to cap yields will only intensify, Brooks wrote, predicting continued demand for havens like gold, the Swiss franc, and the Swedish krona.robinjbrooks.substack

"There's no science that tells us when markets pull the plug on reckless fiscal policy," Brooks wrote. "One moment they're happy to buy all the debt issuance — at low interest rates — that comes with big budget deficits. The next they want higher yields because they worry things are heading for a debt crisis."robinjbrooks.substack