Homebuyers Can Shape Their Mortgage Rate

An analysis of 1.35M US purchase loans from Early-Q1 2023 through Late-Q4 2025 showed wide differences in borrower rates within the same month.
Within a given month, the middle 80% of borrowers landed in a 93-basis-point range, equal to ~$28.4K in home price on $2K budgets.
Credit mattered most. Raising a score from the high 600s to 720 improved likely pricing, and the key thresholds to watch were 700 and 720.
Comparison shopping offered the clearest immediate opportunity: within retail lending, a very competitive lender beat a typical one by 19 basis points, worth ~$5.8K.
Reaching 20% down barely changed the rate, improving it by just 0.7 basis points; the bigger savings came from avoiding mortgage insurance.