Compare ARM vs fixed rate today 2026 with live data showing 30-year fixed at 6.36% and ARMs starting 0.75–1.25% lower for potential monthly savings.
On Tuesday, May 19, 2026, the 30-year fixed mortgage rate sits at 6.36% according to FRED data from May 15, 2026. The 10-year Treasury yield stands at 4.59%, creating a 1.77% spread that keeps fixed-rate pricing elevated. While 15-year fixed rates were not reported in the latest FRED release, the overall environment still favors borrowers evaluating ARM vs fixed rate today 2026.
A fixed-rate mortgage keeps your interest rate constant throughout the loan term, usually 15 or 30 years. An adjustable-rate mortgage (ARM) starts with a lower initial rate that re-prices after an initial fixed period—commonly 5, 7, or 10 years—then adjusts annually based on an index plus margin.
Rooted in the early 2026 market, ARM rates typically start 0.75% to 1.25% lower than 30-year fixed mortgages, providing immediate monthly savings. According to recent reports, fixed-rate mortgages remain far more popular, but ARMs are increasingly attractive due to their lower initial rates compared to fixed mortgages.
The following table shows estimated monthly principal and interest payments on a $400,000 loan amount.
| Loan Type | Rate | Monthly Payment | 5-Year Total Interest | Notes |
|---|---|---|---|---|
| 30-Year Fixed | 6.36% | $2,488 | $89,280 | Stable for long-term ownership |
| 5/1 ARM | 5.36% | $2,229 | $66,540 | Lower payments initially; re-prices after 5 years |
| 7/1 ARM | 5.61% | $2,299 | $72,540 | Extended fixed period before adjustment |
ARMs make sense right now if you plan to sell or refinance within the fixed period. Lower initial rates of 0.75% to 1.25% below fixed rates give borrowers immediate savings. In high-cost areas such as San Francisco and New York City, these savings can reach $200–$300 per month on a $400,000 loan.
After the fixed period, ARM rates can rise. If the 10-year Treasury remains around 4.59%, subsequent adjustments could still be higher than current fixed rates. Risk management strategies include budgeting buffer for potential 2-point rises and monitoring index trends.
For borrowers who expect to stay five to seven years, an ARM starting 0.75% to 1.25% lower offers clear savings. For long-term ownership, the 30-year fixed at 6.36% remains stable. Readers can run live scenarios at HomeRates.ai to compare ARM vs fixed rate today 2026 with their own numbers.
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