Escalating Bond Yields Pose Threat to U.S. Borrowing Costs, Experts Warn

POLICY WIRE — Washington, D.C. — Treasury yields increased on Tuesday, continuing a global bond market downturn and potentially raising borrowing costs for millions of Americans.

The yield on the 10-year Treasury, which impacts mortgage rates, climbed to 4.78%, up from 4.75% on Monday and marking the highest point since January 2025. The 2-year Treasury yield, which reflects expectations for Federal Reserve interest rate decisions, rose to 4.37%, up from 4.34% on Monday. The 30-year Treasury yield remained around 5.25% on Tuesday.

This global trend pushed a key Bloomberg gauge of bond yields to 3.72%, the highest since June 2008. The sell-off is partly driven by persistent inflation and concerns over government debt, leading investors to demand higher yields to offset the increased risk.

James Reilly, a senior markets economist at Capital Economics, noted in a research note that fiscal concerns, rising energy prices, and AI-related investments have pushed long-term government bond yields in major economies to multi-decade highs.

Yields are rising as investors, concerned about inflation and increasing government debt, sell off their government bonds. This trend indicates that investors are seeking higher returns as investments become riskier.

Investors are also worried about rising energy prices due to ongoing U.S.-Iran tensions. The U.S. military action against Iran this month has caused oil prices to spike, raising concerns that the conflict could further fuel inflation and increase borrowing costs.

Morningstar, an investment research company, stated that the increase in borrowing costs is due to the latest escalation in the U.S.-Iran conflict, which has raised concerns that central banks may hike interest rates to combat inflation from higher energy costs.

Stubborn price pressures have been a concern for the Federal Reserve, which aims to bring inflation down to a 2% annual pace. Federal Reserve Chairman Kevin Warsh indicated that the Fed may need to raise interest rates if inflation does not subside, suggesting a potential rate hike at the next meeting from September 15 to 16.

Interest rate traders now believe there is a 66% likelihood that the Fed will raise rates in September, according to CME Group’s FedWatch tool.

Movements in the U.S. bond market influence what Americans pay for loans and the interest they earn on savings accounts. Higher government yields can increase costs for borrowers, affecting everything from auto loans to mortgages. The average 30-year mortgage rate tends to follow the 10-year Treasury, meaning rising yields can increase home borrowing costs.

Elevated borrowing costs can also weigh on stock prices, gold, and cryptocurrencies, while making it more difficult for businesses to expand. However, higher yields can benefit savers with high-yield savings accounts and CDs by increasing their earnings.

Analysts suggest that yields may ease, but not in the near term. Reilly stated that unlike past bond sell-offs, which had clear and often fixable causes, this one is unlikely to reverse soon.

Ulrike Hoffmann-Burchardi, the chief investment officer of the Americas and global head of equities for UBS Global Wealth Management, expects yield volatility to persist in the near future before settling at the end of the year. She projects 30-year and 10-year Treasury yields to end the year at 5% and 4.5%, respectively.

Reporting by Policy-Wire (PW)