US mortgage rates surged to a three-month high, driven by rising Treasury yields and signaling renewed headwinds for the housing sector.
The 10-year Treasury yield rose, pushing mortgage rates to their highest since August. The article notes the direct link between government bond yields and fixed-rate mortgages.
Mortgage lenders typically set 30-year fixed mortgage rates at a spread above the 10-year Treasury yield. When the Treasury yield rises, mortgage rates tend to follow, increasing borrowing costs for homebuyers.
The article doesn't specify the exact yield, but it emphasizes that the rise pushed mortgage rates to a multi-month high, implying the 10-year yield moved above a recent range, likely above 4.5% or similar.
Rising mortgage rates reduce the value of existing mortgage-backed securities because homeowners are less likely to refinance, extending the duration of the MBS and increasing interest rate risk. Additionally, higher rates depress MBS prices.
MBS are bonds that represent claims on the cash flows from pools of mortgage loans. They are sensitive to interest rates and prepayment risk. ETFs like MBB provide exposure to agency MBS.
Higher mortgage rates extend the effective duration of MBS because fewer borrowers refinance, making the bonds more sensitive to further rate increases, which pushes prices down.
US mortgage rates climbed to the highest level since August, tracking a selloff in Treasury bonds that pushed the 10-year yield higher. The increase adds fresh headwinds for a housing market already struggling with affordability, as borrowing costs rise for home purchases and refinancing. Mortgage-backed securities prices fell in tandem, extending duration risk as prepayment expectations dwindle.
Mortgage rates climbed as the 10-year Treasury yield rose, driven by factors such as shifting Fed rate expectations, stronger economic data, or supply concerns. Since mortgage rates are benchmarked to Treasury yields, the selloff in bonds directly lifts borrowing costs for home loans.
Higher rates erode homebuyer affordability, likely leading to slower home sales and price growth moderation. The housing market, already constrained by low inventory, may see further decline in mortgage applications and construction activity.