Net interest margin: US bank rankings
Comenity Bank has the highest net interest margin of the 500 US banks ranked at , at 21.93%, ahead of Merrick Bank (19.58%) and Comenity Capital Bank (19.26%). Median net interest margin: 3.64%. Source: FDIC Call Reports, checked against FFIEC filings.
Key takeaways
- The median net interest margin rose to 3.64% from 3.59% between and (FDIC Call Report data).
- Median net interest margin by size: 3.66% for banks $1 bn to $10 bn, against 3.14% for banks over $100 bn (, FDIC Call Reports).
- 1 bank entered the top 25 by net interest margin in , including Beal Bank USA at 8th (FDIC Call Report data).
Ranking, Q2 2026
| Rank | Change | Bank | State | Q2 2026 | Q1 2026 | |
|---|---|---|---|---|---|---|
| 1 | same | Comenity Bank | DE | 21.93% | 22.18% | |
| 2 | +1 | Merrick Bank | UT | 19.58% | 19.61% | |
| 3 | -1 | Comenity Capital Bank | UT | 19.26% | 19.63% | |
| 4 | same | WebBank | UT | 15.79% | 15.38% | |
| 5 | same | Synchrony Bank | UT | 12.91% | 12.97% | |
| 6 | same | Barclays Bank Delaware | DE | 11.43% | 11.71% | |
| 7 | same | WEX Bank | UT | 10.58% | 10.00% | |
| 8 | +446 | Beal Bank USA | NV | 8.99% | 2.63% | |
| 9 | -1 | Medallion Bank | UT | 8.58% | 8.52% | |
| 10 | -1 | American Express National Bank | UT | 8.49% | 8.49% | |
| 11 | -1 | Capital One | VA | 8.47% | 8.35% | |
| 12 | -1 | Lead Bank | MO | 7.93% | 8.31% | |
| 13 | -1 | Pathward | SD | 7.41% | 7.79% | |
| 14 | -1 | Gulf Coast Bank and Trust Company | LA | 7.03% | 6.91% | |
| 15 | -1 | Coastal Community Bank | WA | 7.02% | 6.90% | |
| 16 | -1 | First National Bank of Omaha | NE | 6.63% | 6.53% | |
| 17 | same | TD Bank USA | DE | 6.39% | 6.37% | |
| 18 | -2 | Happen Bank | UT | 6.30% | 6.40% | |
| 19 | +2 | TBK BANK, SSB | TX | 6.25% | 6.09% | |
| 20 | -2 | Green Dot Bank DBA Bonneville Bank | UT | 6.17% | 6.23% | |
| 21 | -1 | John Deere Financial, f.s.b. | WI | 6.11% | 6.12% | |
| 22 | same | SoFi Bank | UT | 6.07% | 6.02% | |
| 23 | same | Esquire Bank | NY | 6.06% | 6.00% | |
| 24 | -5 | Celtic Bank | UT | 6.05% | 6.17% | |
| 25 | -1 | Stearns Bank | MN | 6.04% | 5.97% | |
| 26 | same | Capital Bank | MD | 5.64% | 5.64% | |
| 27 | +1 | Northrim Bank | AK | 5.59% | 5.46% | |
| 28 | +2 | The Bancorp Bank | SD | 5.49% | 5.33% | |
| 29 | -4 | Sallie Mae Bank | UT | 5.48% | 5.69% | |
| 30 | -1 | Oriental Bank | PR | 5.46% | 5.37% | |
| 31 | +7 | State Bank of Texas | TX | 5.33% | 5.04% | |
| 32 | +3 | USAA Federal Savings Bank | AZ | 5.30% | 5.12% | |
| 33 | same | Old Second National Bank | IL | 5.26% | 5.19% | |
| 34 | +2 | Austin Bank, Texas | TX | 5.25% | 5.10% | |
| 35 | -8 | Republic Bank & Trust Company | KY | 5.24% | 5.48% | |
| 36 | -4 | CalPrivate Bank | CA | 5.22% | 5.20% | |
| 37 | -6 | West Coast Community Bank | CA | 5.20% | 5.20% | |
| 38 | +4 | Cross River Bank | NJ | 5.10% | 4.93% | |
| 39 | same | Community National Bank | TX | 5.06% | 4.96% | |
| 40 | -3 | Northern Bank & Trust Company | MA | 5.02% | 5.05% | |
Rank 1 = highest. Change: places since .
How is net interest margin distributed?
The middle half of the net interest margin table: between 3.19% and 4.05%. Top tenth of net interest margin: above 4.62%; bottom tenth: below 2.70%. Far from the rest on net interest margin: Comenity Bank (21.93%); Merrick Bank (19.58%); Comenity Capital Bank (19.26%); WebBank (15.79%); Synchrony Bank (12.91%), and 12 more.
| Size group (total assets) | Banks | Lower quarter | Median | Upper quarter |
|---|---|---|---|---|
| All banks ranked | 500 | 3.19% | 3.64% | 4.05% |
| $1 bn to $10 bn | 339 | 3.23% | 3.66% | 4.09% |
| $10 bn to $100 bn | 126 | 3.20% | 3.62% | 3.96% |
| Over $100 bn | 32 | 1.96% | 3.14% | 3.72% |
What changed since Q1 2026?
Into the top 25: Beal Bank USA (from 454th). Out of it: Sallie Mae Bank (to 29th).
Biggest climbs: Beal Bank USA (454th to 8th); Monet Bank (487th to 60th); The Farmers National Bank of Canfield (373rd to 300th); Citizens Business Bank (309th to 242nd); Santander Bank (405th to 347th).
Biggest drops: Pinnacle Bank (51st to 105th); Cornerstone Bank (256th to 308th); CFG Bank (120th to 168th); Planters Bank & Trust Company (100th to 145th); First Mid Bank & Trust (202nd to 244th).
How the net interest margin ranking is built
Net interest margin is annualized net interest income for the year to date as a percent of average earning assets, as calculated by the FDIC (field NIMY). It measures the spread a bank earns between what it receives on loans and securities and what it pays on deposits and borrowings. Caveats: credit card and consumer lenders earn much wider margins in exchange for higher losses; margins react to interest rate changes with a lag that differs by balance sheet; and fee-based banks earn most of their revenue outside the margin.
Questions
Which US bank has the highest net interest margin?
Comenity Bank, at 21.93% at , among 500 banks reporting it.
What is the median net interest margin of US banks?
3.64% at , against 3.59% at .
How is net interest margin measured?
Annualized net interest income as a percent of average earning assets (FDIC calculation).
When does the net interest margin ranking change?
Quarterly. figures come after .
Other US bank rankings
Size and balance sheet: Total assets, Total deposits, Net loans and leases, Loan-to-deposit ratio, Total securities, Deposits in domestic offices, Total loans and leases (gross)
Capital: CET1 ratio, Tier 1 leverage ratio, Total risk-based capital ratio, Bank equity capital, Total equity capital
Profitability: Return on equity (ROE), Return on assets (ROA), Efficiency ratio, Net income (year to date)
Asset quality: Noncurrent loans to total loans, Net charge-offs to average loans
Deposits at risk: Uninsured share of domestic deposits, Estimated uninsured deposits
Securities: Available-for-sale securities (fair value), Available-for-sale securities (amortized cost), Held-to-maturity securities (amortized cost), Held-to-maturity securities (fair value)
Staff and branches: Full-time equivalent employees, Number of offices