High Mortgage Rates Reduce Refinancing and Stabilize MBS Risk
Rising 30-year fixed mortgage rates have slashed refinancing activity by over 50%, creating a balanced risk-reward profile for mortgage-backed securities investors.
Mortgage-backed securities currently offer a balanced risk-reward profile for fixed-income investors as a wide gap persists between current market rates and the rates held by existing homeowners. As of October 1, 2026, 30-year fixed mortgage rates reached 7.28%, while nearly 80% of homeowners maintain rates below 6%.
This disparity has caused refinancing activity to drop more than 50% year-over-year. Joel Kan of the Mortgage Bankers Association noted that these rates pushed borrowers to the sidelines. This environment has largely exhausted extension risk, meaning further rate increases are unlikely to significantly lengthen the duration of these securities.
While falling rates typically create reinvestment risk and shorten duration, the current spread suggests refinancing would remain slow to accelerate, allowing investors to capture price gains from lower yields. Analysts recommend that individual investors use passive ETFs like the iShares MBS ETF or actively managed funds like JMBS to avoid the complexities of prepayment analysis and monthly principal reinvestment.
