5/1 Adjustable-Rate Mortgage (ARM) vs Yield Curve Spread (10Y - 2Y)

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.

What Yield Curve Spread (10Y - 2Y) measures

The yield curve spread measures the difference between the 10-year and 2-year Treasury yields. When positive (normal), longer-term bonds pay more. When negative (inverted), it historically signals recession risk.

The yield curve has un-inverted to +0.41 percentage points after being inverted for much of 2023-2024. Historically, the yield curve un-inverting and steepening often occurs just before a recession starts — the recession signal is not the inversion itself, but the re-steepening. For executives, this is a watch-closely moment: the economy may be entering a transition period.

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