Net interest margin: US bank rankings

The five banks at the top of the table at Q2 2026 were Comenity Bank (21.93%, DE), Merrick Bank (19.58%, UT), Comenity Capital Bank (19.26%, UT), WebBank (15.79%, UT) and Synchrony Bank (12.91%, UT). 9 of the top 10 were also in the top 10 in Q1 2026. 7 of the top 10 have their head office in Utah.

Half of the 500 banks have a value between 3.19% and 4.05% (the middle two quarters of the table); one in ten is above 4.62% and one in ten below 2.70%. A year earlier, at Q2 2025, the median was 3.38% across 528 banks. The median rose from 3.59% in Q1 2026 to 3.64% in Q2 2026.

17 values lie far from the rest of the table (more than three times the spread of the middle half beyond it): Comenity Bank (21.93%); Merrick Bank (19.58%); Comenity Capital Bank (19.26%); WebBank (15.79%); Synchrony Bank (12.91%); Barclays Bank Delaware (11.43%) and others. Values like these usually come from special-purpose banks, such as trust, custody, credit card or payment banks, whose balance sheets differ from lending banks; compare them with care.

Between Q1 2026 and Q2 2026, of the 500 banks ranked in both quarters, 251 moved up the table, 218 moved down and 31 kept their place; the typical bank moved 6 places.

Largest moves up the table from Q1 2026 to Q2 2026: Beal Bank USA (from 454th to 8th; 2.63% to 8.99%); Monet Bank (from 487th to 60th; 1.92% to 4.51%); Sunflower Bank (from 85th to 54th; 4.26% to 4.59%). Largest moves down the table from Q1 2026 to Q2 2026: Georgia Banking Company (from 76th to 96th; 4.35% to 4.21%); NBH Bank (from 72nd to 92nd; 4.38% to 4.24%); American First National Bank (from 40th to 55th; 4.95% to 4.55%).

Annualized net interest income as a percent of average earning assets (FDIC calculation). Net interest margin values are year-to-date, annualized figures from each bank's Call Report for Q2 2026, ranked from highest to lowest (1 = highest).

Full definitions are on the methodology page for net interest margin.