Hybrid adjustable rate mortgages (ARM) generally have a fixed term / variable term such as 5/1 ARM.
- 5 would be 5 years at the fixed teaser rate.
- 1 would mean it adjusts ever 1 year after the initial 5 years is over.
Once the adjustment period starts, the new rate will be based on an index plus a percentage called the margin. Look for 2.5% margin or lower on 1 year ARM adjustments.