Treasury Yield & Mortgage Rate Spread: Latest Reading — May 16, 2026}

Current Spread Snapshot

As of May 16, 2026, the 30-year fixed mortgage rate stands at 6.36% while the benchmark 10-year Treasury yield is 4.47%, producing a spread of 1.89 percentage points. This gap remains the key metric that lenders watch when pricing new loans. The spread has been stable near 1.9% for several weeks, reflecting balanced supply and demand for mortgage-backed securities.

Treasury Yield Context

The 10-year Treasury closed at 4.59% on May 15, 2026, according to Treasury data reported by dshort. That reading is the highest level reached this year and sits 0.12 percentage points above the FRED close of 4.47% two days earlier. The 2-year Treasury finished May 15 at 4.09%, leaving the 30-10 Treasury curve at a positive 0.53% slope. A steeper curve typically supports mortgage spreads because investors demand extra compensation for longer-duration risk.

How the Spread Is Calculated

Mortgage rates are derived from the 10-year Treasury plus a lender margin that covers servicing, credit, and liquidity risk. The current 1.89% spread (6.36% – 4.47%) is within the long-term average range of 1.7–2.1%. Volatility in interest-rate markets and the relative supply of agency MBS versus Treasuries are the two largest short-term drivers of this margin.

Date	10Y Treasury	30Y Fixed Mortgage	Spread
May 14, 2026	4.47%	6.36%	1.89%
May 15, 2026	4.59%	6.36%*	1.77%*

*Latest mortgage quote not yet updated; spread calculated using prior day mortgage rate.

Regional Mortgage Rate Examples

While national averages dominate headlines, actual borrower pricing varies by state. In California, conforming 30-year rates averaged 6.41% on May 14, 2026, while Texas posted 6.32% and Florida 6.38%. These differences stem mainly from average credit scores and property-tax levels rather than Treasury movements.

Inflation and Policy Outlook

Inflation remains the dominant variable. Core CPI printed 2.8% year-over-year in April, keeping the Fed on hold. Markets now price only a 35% chance of a September rate cut. If inflation re-accelerates, the 10-year Treasury could test 4.80%, pushing mortgage rates above 6.70% even if the spread stays constant.

Investor Behavior and MBS Flows

Agency MBS issuance has slowed in 2026 as refinancing volume stays low. Reduced supply has helped keep the mortgage spread from widening beyond 2.0%. Foreign demand for Treasuries has also remained steady, preventing a sharp rise in the 10-year yield that would otherwise pressure mortgage pricing.

Bottom Line

With the 10-year Treasury at 4.59% and the mortgage spread holding near 1.89%, 30-year fixed rates are likely to remain in the 6.30–6.50% band through the end of May. Borrowers can run live scenarios at HomeRates.ai to see how small changes in the spread would affect monthly payments on their specific loan size.