National Credit Union Analysis

Member growth turned negative in Q4 2025 — -0.69% year-over-year — marking the first negative quarter on record. Quarter-over-quarter the decline was -0.39%, signaling the trend is accelerating, not stabilizing.

Two ways to measure this: the industry aggregate shows +1.62% (count-weighted, dominated by large CU growth). The per-CU equal-weighted average — after removing statistical outliers — is -0.69%. The aggregate is deceptive: it lets a handful of large CUs mask a crisis affecting 83% of institutions by count. Both numbers are mathematically correct; they answer different questions. The -0.69% is the honest number for understanding what's happening across the industry.

Three structural forces are driving this: fintech siphon (SoFi and Chime are capturing the under-35 demographic — the primary source of new CU membership); indirect auto pullback (7.78% auto loan concentration, declining — indirect lending brought new faces even if those members had no real relationship); demographic cliff (the average CU member is ~47 years old; Boomers are loyal but aging out, and there is no replenishment pipeline).

The tier gradient is striking: every CU above $500M grew, every one below shrank. The spread between Small CUs (-1.6%) and Titans (+3.2%) is 4.8 percentage points — and widening.

Profitability metrics showed mixed performance with strong year-over-year gains but quarterly softening. ROA increased to 0.73% from 0.64% a year ago, though remained stable quarter-over-quarter at 0.78% to 0.73%. NIM held steady at 3.72% both quarterly and expanded from 3.56% YoY, demonstrating successful navigation of the interest rate environment. The margin recovery reflects deposit repricing discipline and loan yield optimization, delivering the industry's best NIM performance since the pre-zero-rate era.

The margin expansion is a rate cycle windfall, not an operational achievement. Variable-rate consumer loans repriced up immediately when rates rose; the deposit base is stickier and repriced more slowly. That spread — NIM — widened. CUs are benefiting from a macro tailwind they did not create.

The uncomfortable framing: institutions are harvesting higher margins from a shrinking member base. CUs that used this window to invest in member acquisition and digital capability will be fine when rates normalize. The ones that simply harvested the margin will be exposed.

Growth momentum strengthened across key balance sheet categories in Q4 2025. Asset growth accelerated to 3.11% from 2.29% year-over-year and from 2.54% quarter-over-quarter. Loan growth accelerated to 0.52% from 0.20% QoQ, while deposit growth accelerated to 2.57% from 2.32% QoQ. The growth acceleration was driven by deposit inflows, particularly into certificates as members returned funds from money market alternatives, though loan demand remained constrained by elevated interest rates. The member growth data reveals a sharp institutional divide: every tier above $500M in assets posted positive growth, while both sub-$500M segments contracted. Small credit unions (under $100M) shed members at -1.62%, and the $100M–$500M segment declined -0.27%. This means the industry's headline negative growth figure (-0.695%) is driven by smaller institutions: sub-$500M credit unions account for roughly 83% of all CUs, so their contraction pulls the industry average negative even as every larger tier grows.

Loan growth at 0.52% is anemic. The tariff wildcard adds uncertainty: auto tariffs are expected to push new car prices up 10-15%, meaning either fewer loans originated or higher-balance loans to members under more financial stress. Either scenario pressures loan quality in H2 2026.

Risk metrics remained stable with modest deterioration. Delinquency rates increased slightly to 0.90% from 0.87% year-over-year and remained stable at 0.85% to 0.90% quarter-over-quarter. Net worth ratio stayed stable at 13.68% quarterly while increasing from 13.30% YoY, demonstrating capital strength. Credit quality held better than expected given the economic environment, with consumer stress levels plateauing rather than accelerating as feared in earlier periods.

Portfolio composition shifted toward traditional banking products in Q4 2025. Certificate concentration increased to 19.80% from 18.85% year-over-year, reflecting member preference for guaranteed returns in the elevated rate environment. First mortgage concentration grew to 21.97% from 21.47% YoY and 21.76% QoQ. Indirect auto lending concentration decreased to 7.78% from 8.04% YoY, continuing the strategic pullback from dealer-originated relationships that drove artificial membership growth but limited cross-selling opportunities.

The certificate concentration (19.80%, up 0.95pp YoY) is the 2026 stress test. Members who locked 12-month CDs at 4.5-5%+ APY in 2024-2025 are starting to reach maturity throughout 2026 — a wall of member decision points. CUs that know who holds those certificates and proactively engage will retain them. The ones running blind will wake up to outflows.