| Group (NOKm) | 3Q | 2Q | 1Q | 4Q | 3Q | 2Q | 1Q | 4Q | 3Q |
| 2024 | 2024 | 2024 | 2023 | 2023 | 2023 | 2023 | 2022 | 2022 | |
| Profitability | |||||||||
| Return on equity per quarter 1) | 21.0% | 15.4% | 16.0% | 18.3% | 11.1% | 15.1% | 13.0% | 13.1% | 10.9% |
| Cost-income ratio 1) | 42 % | 41 % | 41 % | 47 % | 43 % | 41 % | 46 % | 45 % | 45 % |
| Balance sheet figures | |||||||||
| Gross loans to customers | 179,590 | 173,440 | 169,326 | 169,862 | 168,940 | 166,819 | 153,181 | 152,629 | 150,247 |
| Gross loans incl. SB1 Boligkreditt and SB1 Næringskreditt | 247,148 | 241,832 | 238,270 | 236,329 | 234,316 | 232,100 | 213,967 | 211,244 | 208,900 |
| Deposit from customers | 138,042 | 139,661 | 134,395 | 132,888 | 138,230 | 140,164 | 123,529 | 122,010 | 120,558 |
| Total assets | 245,951 | 243,363 | 235,721 | 232,717 | 243,472 | 248,806 | 228,207 | 223,312 | 218,918 |
| Quarterly average total assets | 244,657 | 239,542 | 234,219 | 238,095 | 246,139 | 238,507 | 225,759 | 221,115 | 218,188 |
| Growth in loans incl. SB1 Boligkreditt and SB1 Næringskredtt last 12 months 1) | 2.2 % | 1.5 % | 0.8 % | 0.9 % | 1.0 % | 8.5 % | 1.3 % | 1.1 % | 1.7 % |
| Growth in deposits last 12 months | -1.2 % | 3.9 % | 1.1 % | -3.9 % | -1.4 % | 13.5 % | 1.2 % | 1.2 % | -2.6 % |
| Losses in % of gross loans incl. SB1 Boligkreditt and SB1 Næringskreditt | |||||||||
| Impairment losses ratio 1) | 0.12 % | 0.08 % | 0.04 % | 0.03 % | 0.06 % | 0.05 % | -0.13 % | 0.04 % | 0.04 % |
| Stage 3 as a percentage of gross loans 1) | 0.91 % | 0.78 % | 0.82 % | 0.88 % | 0.98 % | 0.99 % | 0.96 % | 0.97 % | 1.02 % |
| Solidity | |||||||||
| Common equity Tier 1 capital ratio | 18.2 % | 18.5 % | 18.5 % | 18.8 % | 19.7 % | 19.1 % | 18.2 % | 18.9 % | 19.2 % |
| Tier 1 capital ratio | 20.2 % | 20.4 % | 20.4 % | 20.8 % | 21.3 % | 21.0 % | 20.1 % | 20.9 % | 20.8 % |
| Capital ratio | 23.1 % | 23.1 % | 23.1 % | 23.0 % | 23.7 % | 23.5 % | 22.2 % | 23.1 % | 23.0 % |
| Tier 1 capital | 24,097 | 24,216 | 24,073 | 23,793 | 24,283 | 24,192 | 21,985 | 21,835 | 21,252 |
| Total eligible capital | 27,557 | 27,474 | 27,250 | 26,399 | 26,950 | 27,106 | 24,298 | 24,147 | 23,546 |
| Liquidity Coverage Ratio (LCR) | 172 % | 188 % | 160 % | 175 % | 173 % | 188 % | 194 % | 239 % | 180 % |
| Leverage Ratio | 6.9 % | 7.1 % | 7.1 % | 7.2 % | 7.3 % | 7.2 % | 6.9 % | 7.1 % | 7.3 % |
| Key figures ECC | |||||||||
| ECC share price at end of period (NOK) | 153.46 | 151.12 | 137.80 | 141.80 | 137.20 | 141.00 | 123.60 | 127.40 | 111.40 |
| Number of certificates issued, millions 1) | 144.21 | 144.19 | 144.13 | 144.20 | 143.82 | 143.80 | 129.43 | 129.29 | 129.29 |
| Booked equity capital per ECC (NOK) 1) | 124.05 | 117.31 | 113.24 | 120.48 | 116.39 | 112.81 | 105.63 | 109.86 | 107.19 |
| Profit per ECC, majority (NOK) 1) | 6.42 | 4.43 | 4.68 | 5.62 | 3.28 | 4.21 | 3.51 | 3.53 | 2.89 |
| Price-Earnings Ratio (annualised) 1) | 5.97 | 8.53 | 7.36 | 6.31 | 10.47 | 8.38 | 8.79 | 9.02 | 9.62 |
| Price-Book Value Ratio 1) | 1.24 | 1.29 | 1.22 | 1.18 | 1.18 | 1.25 | 1.17 | 1.16 | 1.04 |