Global bond markets recorded a second consecutive week of losses as investors remained concerned about rising fiscal deficits, restrictive central bank policies and persistent energy-driven inflation.
Efforts from Washington to calm fixed-income markets provided only temporary relief. Investors continued selling government bonds despite stronger US Treasury buyback measures.
US Treasury Intervention Fails to Calm Bond Markets
US Treasury Secretary Scott Bessent attempted to ease concerns over rising sovereign bond yields during an appearance on CNBC.
Bessent argued that current yields do not fully reflect economic fundamentals. He also suggested that the Treasury could expand its bond buyback operations beyond the recently announced $4 billion per issue limit.
However, the announcement failed to reverse the broader global bond selloff.
Although markets initially reacted positively, the recovery faded quickly as investors returned their attention to government borrowing, inflation and rising debt supply.
Why Investors Remain Skeptical of Treasury Buybacks
The main concern is that Treasury buybacks can improve market liquidity without solving the underlying debt problem.
Unlike Federal Reserve quantitative easing, the Treasury cannot create new money to purchase bonds.
Instead, repurchases of older government debt must be financed elsewhere. One possibility is additional issuance of shorter-term Treasury bills.
As a result, the government can change the maturity structure of its debt without meaningfully reducing the overall amount investors must absorb.
This distinction has limited confidence that Treasury buybacks can keep long-term yields lower for an extended period.
Temporary Buyback Program Offers Limited Support
Investors are also focusing on the temporary nature of the Treasury’s initiative.
The current program is scheduled to operate between September 9 and November 4. Therefore, many fixed-income investors view it as a short-term liquidity measure rather than a long-term solution.
Meanwhile, markets continue to face a heavy schedule of government debt auctions.
Large technology companies are also issuing significant amounts of corporate debt to finance artificial intelligence infrastructure, increasing competition for investor capital.
At the same time, the gross US national debt has moved above $40 trillion, adding to concerns about future Treasury supply.
UBS Warns Bond Interventions Have Limits
UBS strategists have warned that government intervention can reduce short-term volatility but may struggle to change the longer-term direction of bond yields.
Strategist Frederick Mellors and Global Wealth Management CIO Mark Haefele argued that Treasury buybacks could help reduce immediate market stress.
However, they said such measures cannot fully address the fiscal, inflation and supply pressures keeping borrowing costs elevated.
The strategists also pointed to several structural factors behind higher long-term rates.
These include changing expectations for central bank interest rates, heavy debt issuance by major technology companies and the possibility of a higher long-term inflation environment caused by repeated supply shocks.
European Bond Yields Continue to Rise
European government bond markets were among the weakest areas during the week.
Persistent inflation and heavy sovereign debt issuance pushed borrowing costs across the region toward multi-year highs.
Germany’s 10-year Bund yield climbed to around 3.254% on Friday, completing a second consecutive weekly increase.
The yield remained close to its highest level since May 2011.
Germany’s two-year Schatz yield also rose to approximately 2.841%, as investors increased bets that the European Central Bank could raise interest rates in September.
French Bond Yields Climb After Heavy Debt Issuance
France also experienced higher borrowing costs.
The French 10-year government bond yield moved toward 4.10%, marking another weekly increase.
The move followed several government bond reopenings across different maturities, which tested investor demand.
Across the eurozone, bond markets continue to reflect expectations that inflation could remain above the European Central Bank’s 2% target.
Ongoing disruptions affecting Persian Gulf transport routes are adding another source of inflation uncertainty.
US Treasury Yields Return Toward Recent Highs
US Treasury yields also moved back toward elevated levels after early gains from the government’s buyback announcement faded.
The 10-year US Treasury yield stood near 4.696%, remaining close to multi-month highs.
Meanwhile, the two-year Treasury yield held around 4.185%, reflecting expectations that the Federal Reserve could maintain relatively restrictive monetary policy.
The biggest pressure remained at the long end of the yield curve.
The 30-year US Treasury yield climbed to approximately 5.247%, moving closer to the 19-year peak of 5.337% reached earlier in the week.
AI Debt Issuance Adds Pressure to Bond Markets
Another factor affecting fixed-income markets is the surge in corporate borrowing linked to artificial intelligence investment.
Major technology companies are raising substantial amounts of capital to build data centers and other AI infrastructure.
This corporate debt issuance competes with government bonds for investor demand and places additional pressure on dealer balance sheets.
Combined with heavy federal borrowing, the additional supply has helped keep long-term yields elevated.
Oil Prices Add to Inflation Concerns
Energy markets are also contributing to bond market uncertainty.
Brent crude traded near $93 per barrel, keeping inflation risks firmly in focus.
Tensions involving Iran and reduced commercial tanker activity through the Strait of Hormuz have increased concerns about global energy supplies.
Higher oil prices can feed directly into transportation and production costs. As a result, investors may demand higher bond yields to compensate for the risk of persistent inflation.
Global Bond Outlook Remains Under Pressure
The latest global bond selloff shows that investors remain more focused on structural fiscal and inflation risks than on short-term government interventions.
Treasury buybacks may improve liquidity and reduce temporary market stress. However, they do not eliminate growing government debt, heavy bond issuance or persistent inflation pressures.
Unless those underlying conditions improve, global bond yields could remain elevated despite continued efforts to stabilize fixed-income markets.
