IMF report flags hedge fund leverage, AI debt and term premiums as Treasury pressure keeps mortgage rates above 7%
US mortgage rates, already at their highest in nearly three years, face fresh upward pressure after the International Monetary Fund warned Tuesday that a sharp rise in sovereign bond yields could unfold in a disorderly fashion.
The warning came in the IMF’s October 2026 Global Financial Stability Report, released at the IMF-World Bank annual meetings in Bangkok, Thailand.
It matters to borrowers because the 10-year Treasury yield anchors fixed-rate mortgage pricing. That benchmark reached 5.35% on Oct. 7, its highest since 2002.
The Mortgage Bankers Association (MBA) reported the same day that the average 30-year fixed contract rate stood at 7.49%.
Joel Kan, vice president and deputy chief economist at the Mortgage Bankers Association, says higher rates are dampening both refinance and purchase activity, with first-time and FHA borrowers feeling the pressure most. https://t.co/J6NsbEmSbF
— Mortgage Professional America Magazine (@MPAMagazineUS) October 7, 2026
How the IMF’s bond warning reaches mortgage rates
The 30-year fixed rate has averaged roughly 2 percentage points above the 10-year Treasury yield. Any sustained jump in government bond yields therefore feeds into what borrowers pay, and the IMF said that risk is rising.
High debt and rollover risks “remain unresolved, making the bond market susceptible to more frequent fiscal and inflation shocks,” the report said.
The fund pointed to term premiums as the pressure point. A term premium is the extra return investors demand to hold longer-dated debt.
“Term premiums are at the upper end of historical ranges, especially for advanced economy bonds,” it said.
The IMF outlined three ways yields could climb further:
- governments refinancing at higher rates
- price-sensitive investors selling longer-term bonds
- thinning market liquidity
“All three channels could abruptly raise bond yields through term premium shocks,” the report said.
Two newer forces could add to the strain. Hedge funds held about 9% of outstanding Treasuries in 2025, up from about 4% in 2022, largely through leveraged basis trades.
The IMF said that leverage “continues to leave the bond market susceptible to a disorderly unwind.”
Hyperscalers’ share of global investment-grade bond issuance has also jumped to 10% from less than 1% since 2024.
The fund said that borrowing “could therefore compete with sovereign bond issuance.”
What it means for mortgage brokers
Selma Hepp, chief economist at Cotality, has argued the bond market, not the Federal Reserve, now sets the tone for borrowers. “It’s really the bond market,” she said, while warning that mortgage rates could hit 9%.
Hepp sees relief only if Middle East tensions and energy markets calm. “That brings rates into that 6.5% to 7% range,” she said, as reported in MPA’s analysis of where Cotality’s chief economist really believes rates are going.
If Treasury yields instead reach the high 5s to 6%, she said, mortgage rates would likely hold between 7.5% and 8%.
The IMF urged governments to lengthen debt maturities and central banks to protect their independence.
“Credible fiscal consolidation is the first line of defense against bond market fragilities,” the report said.
It also called for close monitoring of household debt burdens, “particularly in jurisdictions where mortgage payments are sensitive to interest rate fluctuations.”
Stay updated with the freshest mortgage news. Get exclusive interviews, breaking news, and industry events in your inbox, and always be the first to know by subscribing to our FREE daily newsletter.
