In early 2021, the average 30-year fixed mortgage rate touched a record low of 2.65%, and many households seized the moment to refinance. Some went a step further and chose hybrid adjustable-rate mortgages, typically loans with a rate locked for the first five or seven years, to capture an even lower starting rate on larger balances. It was a reasonable bet at the time. Now the fixed periods on many of those loans are ending, and the market they are resetting into looks nothing like the one they left. Freddie Mac’s weekly survey put the 30-year fixed average at 7.24% at the end of October 2026.
For families facing a reset in the next year or two, the question is not whether payments will change but how much, and what to do about it.
How the Reset Actually Works
When the introductory period expires, the lender sets a new rate by adding a fixed markup, agreed at closing, to a benchmark interest rate that moves with the broader market. Loan limits, known as rate caps, restrict how far that new rate can jump. These caps commonly limit the first adjustment to 2 or 5 percentage points, with smaller limits on later adjustments and a lifetime ceiling. Caps soften the shock of a higher payment, but they do not eliminate it.
Consider a $1.5 million loan taken at 2.75% in 2021 with a five-year fixed period. The principal and interest payment is about $6,100 a month. If it resets to 4.75% under a 2% cap, the payment climbs to roughly $7,600. Under a 5% cap with a new rate near 7.75%, it rises past $10,000.
Options Worth Weighing
Read the fine print now
Locate the benchmark rate, the lender’s markup, the caps, the reset date and any minimum rate in your loan documents, then calculate the highest payment the loan allows. That number is the real planning figure.
Ride the reset
If you expect to sell or pay off the home within a few years, a capped adjustment may cost less than refinancing fees and a higher fixed rate.
Refinance into a fixed rate
For a long-term residence, locking in today’s rate trades some cost for certainty. Pricing varies widely, so compare several lenders.
Refinance into a new ARM
A fresh 7- or 10-year fixed period can bridge the gap if you believe rates will ease, though it postpones rather than resolves the risk.
Pay down principal
A lump-sum prepayment, paired with a lender recast where available, can shrink the balance on which the higher rate applies. Weigh this against what that cash earns elsewhere.
Revisit the liquidity plan
A securities-based line of credit or an adjusted cash reserve can provide flexibility, but each carries its own rate and risk profile.
Deciding in Context
A mortgage decision rarely stands alone. Prepaying principal affects liquidity, refinancing interacts with the mortgage interest deduction, and borrowing against a portfolio changes its risk. Please reach out to your Wealth Manager to model each path against the full balance sheet so you can make a decision based on your family’s goals and not just the rate sheet.
Sources
RateZip: https://www.ratezip.com/news/mortgage-rates-today-2026-10-30
The Mortgage Reports: https://themortgagereports.com/mortgage-rates-now/mortgage-rates-today-october-16-2026
Consumer Financial Protection Bureau: https://www.consumerfinance.gov/ask-cfpb/for-an-adjustable-rate-mortgage-arm-what-are-the-index-and-margin-and-how-do-they-work-en-1949
Consumer Financial Protection Bureau: https://www.consumerfinance.gov/ask-cfpb/what-is-debt-en-1947/
The Signal: https://signalscv.com/2026/08/the-subtle-comeback-of-the-adjustable-rate-mortgage-what-buyers-should-weigh-in-2026/
RSAward-Winning Financial Advising
Robertson Stephens paid no fee to obtain recognition but has paid licensing fees to reference its appearances on the Newsweek, USA Today, and FA Magazine rankings lists. See Awards Disclosures
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Weekly Commentary
When the Low-Rate Era Ends: What to Do as Your ARM Resets
Mallon FitzPatrick
In early 2021, the average 30-year fixed mortgage rate touched a record low of 2.65%, and many households seized the moment to refinance. Some went a step further and chose hybrid adjustable-rate mortgages, typically loans with a rate locked for the first five or seven years, to capture an even lower starting rate on larger balances. It was a reasonable bet at the time. Now the fixed periods on many of those loans are ending, and the market they are resetting into looks nothing like the one they left. Freddie Mac’s weekly survey put the 30-year fixed average at 7.24% at the end of October 2026.
For families facing a reset in the next year or two, the question is not whether payments will change but how much, and what to do about it.
How the Reset Actually Works
When the introductory period expires, the lender sets a new rate by adding a fixed markup, agreed at closing, to a benchmark interest rate that moves with the broader market. Loan limits, known as rate caps, restrict how far that new rate can jump. These caps commonly limit the first adjustment to 2 or 5 percentage points, with smaller limits on later adjustments and a lifetime ceiling. Caps soften the shock of a higher payment, but they do not eliminate it.
Consider a $1.5 million loan taken at 2.75% in 2021 with a five-year fixed period. The principal and interest payment is about $6,100 a month. If it resets to 4.75% under a 2% cap, the payment climbs to roughly $7,600. Under a 5% cap with a new rate near 7.75%, it rises past $10,000.
Options Worth Weighing
Read the fine print now
Locate the benchmark rate, the lender’s markup, the caps, the reset date and any minimum rate in your loan documents, then calculate the highest payment the loan allows. That number is the real planning figure.
Ride the reset
If you expect to sell or pay off the home within a few years, a capped adjustment may cost less than refinancing fees and a higher fixed rate.
Refinance into a fixed rate
For a long-term residence, locking in today’s rate trades some cost for certainty. Pricing varies widely, so compare several lenders.
Refinance into a new ARM
A fresh 7- or 10-year fixed period can bridge the gap if you believe rates will ease, though it postpones rather than resolves the risk.
Pay down principal
A lump-sum prepayment, paired with a lender recast where available, can shrink the balance on which the higher rate applies. Weigh this against what that cash earns elsewhere.
Revisit the liquidity plan
A securities-based line of credit or an adjusted cash reserve can provide flexibility, but each carries its own rate and risk profile.
Deciding in Context
A mortgage decision rarely stands alone. Prepaying principal affects liquidity, refinancing interacts with the mortgage interest deduction, and borrowing against a portfolio changes its risk. Please reach out to your Wealth Manager to model each path against the full balance sheet so you can make a decision based on your family’s goals and not just the rate sheet.
Sources
RateZip: https://www.ratezip.com/news/mortgage-rates-today-2026-10-30
The Mortgage Reports: https://themortgagereports.com/mortgage-rates-now/mortgage-rates-today-october-16-2026
Consumer Financial Protection Bureau: https://www.consumerfinance.gov/ask-cfpb/for-an-adjustable-rate-mortgage-arm-what-are-the-index-and-margin-and-how-do-they-work-en-1949
Consumer Financial Protection Bureau: https://www.consumerfinance.gov/ask-cfpb/what-is-debt-en-1947/
The Signal: https://signalscv.com/2026/08/the-subtle-comeback-of-the-adjustable-rate-mortgage-what-buyers-should-weigh-in-2026/
Robertson Stephens paid no fee to obtain recognition but has paid licensing fees to reference its appearances on the Newsweek, USA Today, and FA Magazine rankings lists. See Awards Disclosures
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