15-Year Fixed Mortgage Rate vs 5/1 Adjustable-Rate Mortgage (ARM)

How These Two Indicators Relate

Both 15-Yr Mortgage and 5/1 ARM are interest-rate readings. Their spread is the more useful number than either level on its own — a flattening or inverting curve historically signals tighter financial conditions and elevated recession risk, while a steepening curve typically accompanies recoveries. The Federal Reserve’s FOMC uses these spreads as a key input to policy decisions.

Both readings are currently moving lower. 15-Yr Mortgage has moved lower -0.1% since the prior release; 5/1 ARM has moved lower -0.1%. When two related indicators decline together, the move usually reflects a real economic shift rather than measurement noise.

What 15-Year Fixed Mortgage Rate Measures

The 15-year fixed mortgage rate is the average interest rate on a conventional 15-year home loan. It offers a lower rate than the 30-year fixed but with higher monthly payments due to the shorter repayment term. Sourced from Freddie Mac's weekly Primary Mortgage Market Survey.

At 5.89%, the 15-year fixed rate carries a roughly 0.75 percentage point discount to the 30-year rate. Borrowers choosing the 15-year term pay significantly less in total interest over the life of the loan — typically saving over $100,000 on a $400,000 mortgage. For financial advisors and wealth managers, the spread between 15-year and 30-year rates signals how the market prices term risk. A narrowing spread suggests lenders expect rates to decline.

Methodology: Freddie Mac surveys lenders weekly to compile the Primary Mortgage Market Survey. The 15-year rate reflects the average offered rate for a conforming 15-year fixed loan with 20% down payment to a borrower with strong credit. Actual rates vary based on creditworthiness, down payment, and loan size. Source: FRED at the St. Louis Fed (series MORTGAGE15US).

What 5/1 Adjustable-Rate Mortgage (ARM) Measures

The 5/1 adjustable-rate mortgage (ARM) offers a fixed rate for the first 5 years, then adjusts annually based on a benchmark index plus a margin. ARMs typically start with a lower rate than 30-year fixed mortgages, making them attractive for buyers who plan to sell or refinance within 5-7 years.

At 6.17%, the 5/1 ARM offers a modest discount to the 30-year fixed rate of 6.64%. When this spread is narrow (under 0.5%), the risk-reward of choosing an ARM is less compelling — you take on rate adjustment risk for relatively little savings. A wider spread (1%+) makes ARMs more attractive. For real estate investors and corporate relocation programs, ARMs can reduce carrying costs on properties held for short periods.

Methodology: Freddie Mac surveys lenders weekly. The 5/1 ARM rate reflects the initial fixed-rate period offered to well-qualified borrowers. After the 5-year fixed period, the rate adjusts annually based on the Secured Overnight Financing Rate (SOFR) index plus a lender margin, subject to periodic and lifetime caps. Source: FRED at the St. Louis Fed (series MORTGAGE5US).

How These Comparisons Are Built

Each pairwise comparison page is statically generated from the live indicator dataset — values, trends, and source links are pre-rendered into HTML at build time. When the underlying dataset refreshes (each indicator on its own publication schedule), the comparison page regenerates automatically. ExecBolt does not estimate, model, or interpolate any reading; every value comes from the publishing agency’s primary release. For the full sourcing approach, citation format, and known limitations, see the methodology page.

For plain-language guides to the concepts behind 15-Yr Mortgage and 5/1 ARM, see the learn library. For tools that translate macro readings into business outputs (DCF, runway, break-even), see the calculators page. Authoritative external context comes from the Federal Reserve’s FRED database, the U.S. Bureau of Labor Statistics, the U.S. Bureau of Economic Analysis, and the SEC EDGAR system.

Frequently Asked Questions