Market Snapshot: ARMs Reemerge in 2026
Independent mortgage lenders are reshaping the agency ARM market as the year unfolds. In the first half of 2026, adjustable-rate mortgages (ARMs) accounted for 3.34% of agency loan originations, a marked rise from 0.31% in the same period five years earlier. In raw terms, 39,166 ARM loans were originated from January through May 2026, compared with 35,591 for all of 2021.
Analysts attribute the shift to a borrower base that remains sensitive to cash flow and monthly payments in a high-rate environment, alongside lenders looking to broaden their product sets. Polygon Research based its findings on Fannie Mae, Freddie Mac and Ginnie Mae mortgage-backed securities data through May 2026.
Nonbanks Lead the ARM Sellers Landscape
A striking feature of the 2026 data is who dominates the ARM selling and issuing landscape. While 2021 saw major banks among the top 10 sellers, this year the leaders are all nonbanks. The five largest ARM originators through early 2026 were:
- PennyMac Loan Services — 4,675 loans
- United Wholesale Mortgage — 3,786 loans
- Freedom Mortgage Corp. — 3,283 loans
- Rocket Mortgage — 2,887 loans
- Lakeview Loan Servicing — 2,605 loans
Across the board, the top 10 ARM sellers/issuers in 2026 are nonbanks, signaling a major shift in how these products are distributed and scaled. This pattern reflects a broader move by independent lenders to operate across retail, wholesale and correspondent channels with speed and scale.
Why the Shift Is Happening
Industry observers point to several drivers behind the rise of nonbanks in agency ARMs. Their multi-channel reach allows IMBs to move quickly on new products and scale operations when demand changes. The capability to serve borrowers through multiple routes is cited as a core advantage in a market defined by elevated rates and affordability challenges.
Val Buresch, founder and CEO of Polygon Research, notes that ARMs are regaining relevance in a mortgage market shaped by persistent rate pressure and high home prices. He adds that cross-channel execution is a differentiator for lenders trying to capture demand in a volatile environment. The trend underscores how nonbanks drive agency increase in ARM activity across channels.
Borrower Profiles in 2026
For borrowers, ARMs typically offer lower initial rates and payment schedules that can ease qualification hurdles or preserve monthly cash flow. Yet the borrowers choosing ARMs in 2026 appear more leveraged than those seen during the early years of the program, with risk metrics broadly higher than in 2021. Lenders say this reflects a market where buyers face affordability pressures despite higher than usual household incomes in certain regions.
The shift in borrower mix underscores two realities for the agency market: access to flexible payment options matters, and the risk profile of ARM borrowers may warrant closer monitoring from investors and guarantors.
Implications for Agencies, Lenders and Investors
- Product mix matters more as nonbanks drive agency increase in ARM originations, potentially changing pricing dynamics for agency MBS.
- Channel strategy becomes critical. The ability to push ARMs across retail, wholesale and correspondent networks is now a differentiator among lenders.
- Credit and risk management may need to adapt to a borrower base that is broader in leverage and potentially more sensitive to rate moves.
Outlook: The Path Ahead for ARMs
Analysts expect ARMs to maintain a meaningful role in agency originations through the remainder of 2026, especially as rates remain elevated and housing affordability stays a central market concern. If demand holds, the share of ARMs could stabilize at a higher level than seen in the mid-2010s, with nonbanks continuing to push product innovations and distribution partnerships.
Market participants are watching for further shifts in the channel mix and how investors price agency MBS tied to ARM pools. The next several months could reveal whether nonbanks solidify their leadership and how traditional banks respond with new strategies or product adaptations.
Key Data at a Glance
- ARM share of agency originations (first six months of 2026): 3.34%
- ARM loans originated Jan–May 2026: 39,166
- ARM loans originated in all of 2021: 35,591
- Top 5 ARM sellers/issuers in 2026 (nonbanks): PennyMac (4,675); United Wholesale Mortgage (3,786); Freedom Mortgage (3,283); Rocket Mortgage (2,887); Lakeview Loan Servicing (2,605)
- National trend: all top 10 ARM sellers/issuers in 2026 are nonbanks
The data underscore a pivotal conclusion: nonbanks drive agency increase in ARM activity as they leverage multi-channel reach to serve borrowers in a market where rates and prices remain stubbornly high.
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