KBRA’s research examines the UK past-term interest-only (PTIO) mortgage population, including drivers of post-maturity behaviour and implications for residential mortgage-backed securities (RMBS) cash flow timing. PTIO mortgages are interest-only (IO) loans that have reached maturity without repaying the principal balance. These loans are gaining prominence as legacy pre-global financial crisis (GFC) IO cohorts mature. In UK RMBS, seasoned IO loans represent approximately 4% of total collateral and roughly 75% of seasoned nonconforming collateral (around GBP18 billion).
Click here to read the research in full: Extension Risk in UK Seasoned Interest-Only Mortgages