The Gist
The ARM Decision Framework
When Adjustable Rates Save Money — and When They Don't
Understand intro periods, caps, indexes, and break-even math so you can choose ARM vs fixed with eyes open.
5 Blinks~10 minutesFree
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Blink 01 · 2 min
ARM Is a Timeline Bet
You are buying a lower intro rate for a defined window
“An ARM is not a mystery product — it is a bet that you will refinance, sell, or tolerate adjustment before the intro period ends.”
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Blink 02 · 2 min
Caps, Floors, and Indexes
The adjustment rules that bound your risk
“Caps limit how fast and how far the rate can move; the index and margin decide where it tries to go.”
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Blink 03 · 2 min
Break-Even vs Fixed
The math that decides whether the intro discount is real
“Sum the payment savings during the intro period and compare them to the risk of higher payments later or refinance costs.”
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Blink 04 · 2 min
Who Should Avoid ARMs
Profiles where payment certainty is the product
“Borrowers with long hold horizons, tight budgets, or low refinance flexibility usually need fixed-rate certainty.”
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Blink 05 · 2 min
ARM Exit Discipline
Refinance, recast, or sell before the story changes
“Treat the intro period as a project with a calendar reminder 12 months before first adjustment.”
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EARL · Mortgage Butler
Ready to turn these insights into your actual numbers
Educational content only. Not financial advice. Rates and figures are illustrative.
IRRRL1 NMLS #2560253 · Equal Housing Lender