Will 30Y mortgage rate fall below 5.75% by August 31, 2026?
The Condition
Fed cuts ≥25bp at May 6, 2026 FOMC meeting
Our Ensemble Estimates
Given Fed cuts ≥25bp: Will 30Y mortgage rate fall below 5.75% by August 31, 2026?
Given Fed holds: Will 30Y mortgage rate fall below 5.75% by August 31, 2026?
Causal Effect
A rate cut marginally helps mortgage rates through forward curve compression and MBS spread narrowing, but transmission remains structurally impaired by lock-in effects
Why This Matters
Tests whether a rate cut can break through the mortgage rate lock-in effect. Transmission speed was reclassified from MODERATE to SLOW — 75bp of cumulative cuts have failed to move the 30Y mortgage rate from 6.22%. The housing channel is structurally impaired as ~80% of outstanding mortgages are below 4%, creating a lock-in barrier. An additional 25bp cut adds incrementally but the mortgage-Treasury spread remains historically wide due to MBS duration risk and reduced Fed holdings. The question is whether another cut changes the forward rate curve enough to compress mortgage spreads.
Resolution Criteria
Freddie Mac PMMS 30-year fixed rate mortgage average falls below 5.75% for any weekly reading through August 31, 2026
Source Analysis
Mortgage rates locked at 6.22% despite 75bp cumulative cuts, transmission reclassified MODERATE to SLOW