U.S. Dollar Index (DXY) vs 5/1 Adjustable-Rate Mortgage (ARM)

How These Two Indicators Relate

Dollar Index sits in the trade category and 5/1 ARM sits in the rates category, so they describe different parts of the same economy. Watching them together provides cross-checks: a coordinated move in both directions confirms a regime shift, while a divergence often reveals which sector of the economy is leading or lagging.

Both readings are currently moving lower. Dollar Index has moved lower -0.10 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 U.S. Dollar Index (DXY) Measures

The U.S. Dollar Index measures the value of the U.S. dollar against a basket of major currencies (euro, yen, pound, Canadian dollar, Swedish krona, Swiss franc). It reflects the dollar's purchasing power in international markets.

The dollar has weakened to 103.0, down from a January peak of 109.4. A weaker dollar is mixed for U.S. businesses: it makes American exports more competitive abroad and boosts the dollar value of foreign earnings (positive for multinationals), but it increases the cost of imported goods and raw materials. For executives at companies with significant international revenue, dollar weakness is generally a tailwind for reported earnings.

Methodology: The DXY is a weighted geometric mean of the dollar's value against six currencies: Euro (57.6%), Japanese Yen (13.6%), British Pound (11.9%), Canadian Dollar (9.1%), Swedish Krona (4.2%), and Swiss Franc (3.6%). It was established in 1973 with a base of 100. The Federal Reserve also publishes broader trade-weighted dollar indices. Source: FRED at the St. Louis Fed (series DTWEXBGS).

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 Dollar Index 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