Where the Margin Went — Q3 2026

A Wider Margin, a Lower Return

The panel is the 4,157 credit unions that filed a Call Report for every quarter from Q2 2025 to Q3 2026: 98.6% of the 4,215 that filed for Q2 2026, holding 98.6% of their assets at June 30, 2026. Matching the same credit unions in every quarter keeps entries, exits and late filers out of every comparison. For Q3 2026 alone the panel's ROAA, the quarter's net income annualized over average assets, was 77.5‱, 15.4‱ below the 92.9‱ the same credit unions returned in Q3 2025. Their net interest margin was 358.5‱, 9.0‱ wider than a year earlier and the widest of the five quarters the panel covers.

Over the nine months to September 30, 2026, the panel's ROAA was 86.4‱, above the 81.1‱ of the same nine months of 2025. A nine-month figure blends three quarters. For it to rise while the third quarter fell, the first half of 2026 had to run ahead of the first half of 2025, as System Signals — Q2 2026 (October 5, 2026) found for the system. Read year to date, as each filing reports it, Q3 2026 sits above a year earlier; read alone, it sits below.

That edition also found the margin's gain on a year earlier narrowing, and on the panel it narrowed again. For the system the gain was 20.5‱ in Q1 2026 and 14.5‱ in Q2 2026; for the panel in Q3 2026 it was 9.0‱.

The Panel's Five Quarters: the table gives the panel's single quarters, each annualized over average assets. ROAA in Q3 2026 is below Q3 2025 although the margin is the widest of the five; Q3 2026 has 92 days to Q2 2026's 91, which widens an annualized quarter slightly, so its comparison is with Q3 2025.

From Q2 2019 to Q3 2026 the system's single-quarter margin ran from 252.7‱ in Q2 2021 to 357.0‱ in Q3 2026, its widest. Q3 2026 carries the extra day, but taken per day its margin is still wider than Q2 2026's. In the five quarters both cover, the panel's margin ran 0.5‱ to 5.6‱ above the system's. What the series shows is a margin that has widened since 2021.

The Margin Since 2019: the chart gives the system's margin for each single quarter from Q2 2019 to Q3 2026, annualized over average assets. It shows the widening from the 2021 low.

One Credit Union's Provision

Navy Federal Credit Union is the largest credit union in the panel, with 8.2% of its assets at September 30, 2026. Its net income for Q3 2026 was $1M, against $545M for Q3 2025. For the quarter it recorded a provision for credit losses of $1,324M against net charge-offs of $699M, and its allowance for credit losses rose from $4,534M at June 30, 2026 to $5,159M at September 30, 2026.

Taken out of the panel, Navy Federal accounts for 8.8‱ of the 15.4‱ fall in ROAA: the panel's ROAA fell 15.4‱ with it and 6.6‱ without it. Without it, the other 4,156 credit unions returned 84.5‱ for Q3 2026 against 91.1‱ a year earlier, and their provisions, 50.9‱ of average assets, were 0.3‱ below Q3 2025's. A fall in ROAA remains once the provision is set aside, and it sits in the lines below the margin.

The Panel With and Without Navy Federal: the table sets the panel's ROAA and provisions for the two third quarters beside the same figures without Navy Federal Credit Union and for it alone. Without it, provisions are level with a year earlier and ROAA is still lower.

Where the Margin Went

Without Navy Federal, ROAA is the net interest margin plus non-interest income, less operating expense and provisions, each a share of average assets, and those four lines account for the whole of its change. From Q3 2025 to Q3 2026 the margin gained 8.6‱ and operating expense rose 8.2‱. Compensation and benefits account for 3.8‱ of the rise and all other operating expense for 4.4‱. Non-interest income fell 7.3‱ and provisions 0.3‱. By that arithmetic operating expense took nearly all of the margin's gain: the margin less operating expense changed by 0.4‱. The 6.6‱ fall in ROAA is mostly the fall in non-interest income.

Against each credit union's own average assets, operating expense rose at 2,568 of the 4,157 credit unions in the panel, 61.8%, and at no fewer than 60.0% of those in any tier, so the rise is broad; compensation and benefits rose against assets at 2,536. No single credit union carries it. Without Navy Federal, the largest increase in dollars is 8.3% of the total rise, and the ten largest together are 29.2%. Among the 2,306 credit unions whose margin widened, 1,007 returned less than a year earlier all the same.

The Lines Below the Margin: the table follows the panel without Navy Federal Credit Union through each line of ROAA for the two third quarters. Operating expense took nearly all of the margin's gain, and the fall in non-interest income sits mostly in its gains line.

The Fee Account

The Interchange You Can't See (June 29, 2026) found non-interest income falling against assets from 2021 to 2025, with the fall in Other Operating Income, where interchange is reported, while Fee Income held. If that account explained Q3 2026, the fall would sit in those two lines. Without Navy Federal, little of it does. Fee Income was 45.4‱ of average assets, 0.1‱ above a year earlier, and Other Operating Income was 60.1‱, 1.8‱ below. Gains and other non-interest income, the rest of Total Non-Interest Income, fell 5.6‱ of the 7.3‱. That line holds gains and losses on securities, derivatives, loans and other assets, and non-operating income.

Counted by credit union, the fall in non-interest income is wider than it is deep. Non-interest income fell against assets at 2,573 of the 4,157 credit unions in the panel and Fee Income at 2,241, but in Fee Income those falls are smaller in total than the rises at the rest.

Gains move from quarter to quarter, and their fall is concentrated. Without Navy Federal, gains and other non-interest income ran from 4.3‱ to 13.7‱ of average assets across the five quarters, and its 9.8‱ in Q3 2025 sat inside that range. Ten credit unions' falls in dollars sum to 63.3% of the line's net fall. We read the fall in non-interest income as gains that Q3 2025 had and Q3 2026 did not, rather than a change in what credit unions earn from members. The account holds for Other Operating Income, which fell in the direction the Q1 2026 edition found, and it does not explain the quarter.

Non-Interest Income by Line: the table gives non-interest income for the panel without Navy Federal Credit Union in its three parts, quarter by quarter. Fee Income and Other Operating Income dip in the first quarter and recover; the gains line swings furthest.

Every Tier

If stronger first and second quarters were hiding a broad third-quarter slowdown, nine-month returns would rise while the third quarter fell in every tier, and most credit unions in each tier would show the fall. Tiers are fixed at each credit union's total assets at June 30, 2026, on the asset-size tier boundaries, and the tier of credit unions above $10 billion here leaves out Navy Federal. Without it, Q3 2026 ROAA was below Q3 2025 in every tier, from 2.6‱ lower in the $100M–$500M tier to 22.9‱ lower among credit unions under $100M. Over nine months the order turns above the smallest tier: ROAA was higher than in the first nine months of 2025 in each tier above $100 million, and lower only among credit unions under $100M, by 12.8‱. The nine-month return that each filing reports therefore masks the third quarter in four tiers of five.

By count the fall is narrower. Without Navy Federal, 2,343 of the 4,156 returned less in Q3 2026 than in Q3 2025. In the $1B–$10B tier fewer than half did, 211 of 437, and in the $500M–$1B tier about half, 140 of 273. The hypothesis holds for the nine-month figures in four tiers of five and fails on the count in one. We read the quarter as a stall rather than a broad slowdown: without Navy Federal, the margin less operating expense was 25.6‱ of average assets against 25.2‱ a year earlier, and most of the rest of the fall in ROAA is the gains line.

ROAA by Tier, without Navy Federal Credit Union: the table sets each tier's nine months beside its third quarter alone, with the number of credit unions whose Q3 2026 ROAA was below their Q3 2025 figure. Nine months are above a year earlier in every tier but the smallest; the third quarter alone is below it in all five.

What Settles It

Test H-2026Q3-breakdowns-margin-01. Whether the system's net interest margin less operating expense for Q4 2026 alone, annualized over average assets, exceeds its Q4 2025 figure of 26.0‱. Settles with the Q4 2026 data; made in October 2026, during the quarter. The population is the system, every federally insured credit union that files for Q4 2026. The quarter is the full-year amount less the nine-month amount, over the mean of the system's total assets at September 30, 2026 and December 31, 2026, and the result is scored to one decimal of a ‱. A reading above would be consistent with the margin outrunning operating expense again; a reading at or below would be consistent with operating expense keeping pace with it. We take no side: on the panel the margin less operating expense for Q3 2026 was within 1.2‱ of Q3 2025's, and a single quarter does not show which way the next will turn.

Fourth Quarters Since 2019: the table gives the system's margin, operating expense and the difference between them for each fourth quarter. The Q4 2025 difference is the test's threshold.

Connecting the Lines

This edition opens a thread on the margin and the lines below it. It follows Signal 3 of System Signals — Q2 2026 (October 5, 2026), which found the quarterly margin the widest since 2019, its gain on a year earlier narrowing, and operating expense rising faster than assets. On the panel the margin widened again in Q3 2026 while its gain on a year earlier narrowed, and operating expense took nearly all of that gain. The edition takes up the fee-income question of The Interchange You Can't See (June 29, 2026): Fee Income held, Other Operating Income fell, and most of the quarter's fall in non-interest income is in gains. Navy Federal's provision bears on the thread of The Provision Lag — Q4 2025 (March 20, 2026), which System Signals left at June 30, 2026 with the reserve build stopped; without Navy Federal, provisions for Q3 2026 were level with a year earlier. The smallest tier's fall bears on the size divide thread of The Cohort Earnings Divergence — Q1 2026 (June 27, 2026). The Q4 2026 test above is this thread's next step.

QuarterCall publishes analysis of publicly available NCUA Call Report data. Nothing here is investment, financial, or membership advice.