A rate cap is a limit set on how much an interest rate can increase on an adjustable-rate mortgage (ARM) during a specific period or over the life of the loan. This feature protects borrowers from extreme fluctuations in interest rates, ensuring that their payments remain manageable. Rate caps are crucial for understanding the dynamics of ARMs and how they compare to fixed-rate mortgages, as they introduce a level of predictability in what can often be an unpredictable market.
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