Large credit unions ($10B-$50B assets) demonstrated their structural advantages in Q4 2025, maintaining the industry's highest member growth at 2.72% despite deceleration from 3.20% a year prior. The 68-institution cohort delivered exceptional profitability with ROA rising to 0.89% from 0.70% year-over-year, while keeping delinquency at 0.72%, the lowest among all tiers. Asset growth accelerated dramatically to 6.31% from 2.63% annually, validating the tier's sweet spot positioning between operational efficiency and regulatory complexity. However, the 48 basis point member growth deceleration signals the need to understand the mechanisms driving their 3.41 percentage point advantage over the national average, as sustaining this competitive separation requires precision in member acquisition and retention strategies.
Large Credit Unions
Large Credit Unions
Large Credit Unions Extend Competitive Lead with 2.72% Member Growth Despite Industrywide Deceleration
How This Tier Compares
Large Member Growth vs National Average - Q4 2025
Large CUs demonstrate exceptional member acquisition capabilities, outpacing national trends by 3.41 percentage points.
Large ROA vs National Average - Q4 2025
Large CUs achieve superior profitability, exceeding national ROA by 16 basis points through operational efficiency at scale.
Large Asset Growth vs National Average - Q4 2025
Large CUs drive accelerated balance sheet expansion, growing assets 3.20 percentage points faster than the industry average.
Key Insights
Year-over-Year Changes
Quarter-over-Quarter Changes
Key Metrics
Return on Assets
0.89%
▲ YoYNet Interest Margin
3.00%
▲ YoYAsset Growth
6.31%
▲ YoYMember Growth
2.72%
Delinquency Rate
0.72%
— YoYNet Worth Ratio
11.40%
AMR Growth
2.71%
Deposit Growth
6.65%
— YoYLoan Growth
4.77%
— YoYMember Engagement
Member Growth (YoY %)
Member engagement showed mixed signals in Q4 2025, with growth decelerating to 2.72% from 2.97% in Q3 2025 and from 3.20% in Q4 2024. Despite the deceleration of 25 basis points quarter-over-quarter and 48 basis points year-over-year, Large credit unions maintained the industry's strongest member growth rate, outpacing the national average by 3.42 percentage points. The sustained growth above 2.7% reflects the tier's ability to attract and retain members through competitive pricing and comprehensive product offerings, though the deceleration trend warrants monitoring as a potential early indicator of intensifying competition.
Profitability
Return on Assets (%)
Net Interest Margin (%)
Profitability performance was exceptional in Q4 2025, with ROA reaching 0.89%, remaining stable from 0.91% in Q3 2025 while surging from 0.70% year-over-year. This 19 basis point annual improvement represents the strongest ROA gain in the industry, positioning Large credit unions 16 basis points above the national benchmark. NIM expanded to 3.00% from 2.95% quarterly and 2.73% annually, though remaining 72 basis points below national averages. This NIM discount reflects a deliberate strategic choice to offer competitive rates for member acquisition while maintaining superior profitability through operational efficiency and scale advantages.
Growth
Asset Growth (YoY %)
Member Growth (YoY %)
Growth momentum accelerated significantly in Q4 2025, with asset growth reaching 6.31%, up from 4.60% in Q3 2025 and dramatically higher than 2.63% a year prior. This 171 basis point quarterly acceleration and 368 basis point annual improvement positioned the cohort 3.20 percentage points above national averages. Deposit growth accelerated to 6.65% from 6.42% quarterly, while loan growth decelerated slightly to 4.77% from 4.99% quarter-over-quarter. The strong deposit growth combined with robust asset expansion demonstrates the tier's ability to capture market share while maintaining balanced portfolio growth across funding sources.
Risk & Credit Quality
Delinquency Rate (%)
Net Worth Ratio (%)
Risk metrics showed modest deterioration but remained industry-leading in Q4 2025. Delinquency rates increased to 0.72% from 0.65% in Q3 2025, representing a 7 basis point quarterly rise, while remaining stable at 5 basis points above the 0.67% level from Q4 2024. Despite the uptick, Large credit unions maintained the lowest delinquency rate among all tiers, sitting 18 basis points below the national average. Net worth decreased to 11.40% from 11.62% quarterly but improved from 11.18% annually, reflecting strong capital generation offsetting rapid asset growth. The risk profile remains exceptionally strong relative to industry peers.
Portfolio Mix
First Mortgage (%)
Indirect Auto (%)
Share Certificates (%)
Portfolio composition remained heavily weighted toward real estate lending, with first mortgages comprising 38.00% of loans, significantly above the 21.97% national average. This concentration decreased 82 basis points from 38.82% year-over-year, suggesting modest diversification efforts. Certificate deposits represented 29.13% of funding, down 30 basis points annually but still 933 basis points above national levels. Indirect auto lending comprised 16.89%, declining 123 basis points year-over-year from 18.12%, indicating strategic shifts away from dealer-originated lending. The portfolio mix reflects the tier's focus on relationship-based lending and higher-yield deposit products.
Strategic Implications
- • Monitor member growth deceleration mechanisms closely, as the 48bps annual decline could signal intensifying competition for the high-value demographics Large CUs typically attract.
- • Leverage the 42bps NIM discount as a competitive weapon rather than viewing it as margin compression—this pricing strategy directly enables the 2.72% member growth advantage.
- • Prepare for certificate repricing risk in 2026, using member data analytics to identify retention strategies and cross-selling opportunities before the 29% CD concentration matures.
- • Capitalize on the $10B-$50B sweet spot positioning by investing 0.03-0.05% of assets in technology infrastructure that smaller competitors cannot economically justify.
- • Focus on second product penetration among new members, as the institutions sustaining 2.72% growth excel at converting transactions into comprehensive banking relationships.
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Notable Patterns
How This Cohort Compares to National
First Mortgage Share is 16.0pp above national
Certificate Pct is 9.3pp above national
Indirect Auto Pct is 9.1pp above national
Loan Growth (annual) is 4.3pp above national
Deposit Growth (Annual) is 4.1pp above national
Data Quality Notes
6 metric(s) had extreme values filtered using MAD-based, z-score > 5.0.
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