| Year | 2025/26 | 2024/25 | 2023/24 | 2022/23 | 2021/22 | 2020/21 | 2019/20 | 2018/19 | 2017/18 | 2016/17 | 2015/16 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sales growth, % | 7.6 | 13.6 | 13.4 | 2.7 | 6 | -5.4 | -0.2 | 6.8 | 2.8 | 5.1 | 3.7 |
| Gross margin, % | 47.7 | 45.6 | 46.2 | 45.6 | 49.4 | 50 | 48.7 | 48.6 | 48.3 | 49.3 | 50.8 |
| Operating margin, % | 12.2 | 10.1 | 7 | 3.4 | 8.2 | 7.3 | 6.3 | 1.1 | 5.7 | 7.6 | 6.7 |
| EBITA, MSEK | 1,544.8 | 1,184.9 | 723.6 | 305 | 719.4 | 608.2 | 549.2 | 94 | 468.3 | 609.9 | 506.4 |
| Return on capital employed, % | 34.1 | 30.7 | 20.9 | 8.8 | 174 | 15.2 | 13.5 | 4.1 | 21 | 28.4 | 23.6 |
| Return on equity, % | 42.4 | 41 | 31.5 | 10.6 | 23.3 | 21 | 21.4 | 3.5 | 16 | 22.4 | 17.6 |
| Equity/assets ratio, % | 40 | 37 | 31.6 | 28.1 | 37.3 | 35.8 | 30.5 | 49 | 53.9 | 57.7 | 54.5 |
| Equity/assets ratio, excl IFRS 16, % | 53.4 | 51 | 47.4 | – | – | 55.2 | 51 | 49 | 53.9 | 57.7 | 54.5 |
| Net debt/EBITDA | 0 | 0.4 | 1 | 1.6 | 0.9 | 1.1 | 1.8 | 0.5 | 0 | 0 | 0 |
| Net debt/EBITDA, excl IFRS 16 | -1.1 | -0.8 | -0.2 | 0.2 | -0.5 | -0.7 | 0 | 0.5 | 0 | 0 | 0 |
| Sales per sq.m in stores, SEK thousand | 39.4 | 37.7 | 36 | 31.7 | 30.7 | 29.4 | 31.9 | 30.8 | 30.8 | 31.4 | 30 |
| Number of stores at period end | 249 | 241 | 230 | 222 | 229 | 228 | |||||
| Average number of employees | 3,151 | 3,109 | 3,044 | 3,128 | |||||||
| Number of Club Clas members | 6.2 | 5.9 | 5.4 | 5 | |||||||
| Data per share | |||||||||||
| Number of shares before dilution | 63,521,039 | 63,417,214.8 | 63,357,287 | 63,356,536 | 63,351,284 | 63,345,330 | 63,273,680 | 63,217,741 | 63,200,598 | 63,052,803 | 63,167,924 |
| Number of shares after dilution | 63,914,461 | 63,810,627.8 | 63,472,584 | 63,357,260 | 63,358,847 | 63,356,993 | 63,297,575 | 63,230,062 | 63,311,743 | 63,254,614 | 63,461,923 |
| Number of shares at period end | 63,563,991 | 63,452,804 | 63,357,289 | 63,356,565 | 63,351,333 | 63,345,417 | 63,337,447 | 63,217,794 | 63,208,135 | 63,083,438 | 63,376,420 |
| Earnings per share before dilution, SEK | 18.4 | 13.9 | 8 | 2.8 | 8.2 | 6.6 | 5.9 | 1.1 | 5.7 | 7.6 | 6 |
| Earnings per share after dilution, SEK | 18.3 | 13.8 | 8 | 2.8 | 8.2 | 6.6 | 5.9 | 1.1 | 5.6 | 7.6 | 6 |
| Comprehensive income per share, SEK | 18.5 | 12.7 | 7.9 | 0.6 | 6.7 | 6.8 | 5.7 | 1.3 | 6.4 | 8.3 | 5.1 |
| Cash flow per share**, SEK | 33.4 | 28.9 | 23.5 | 14.8 | 15.6 | 20.3 | 20.3 | 4.9 | 5.9 | 11.1 | 11.2 |
| Equity per share, SEK | 49.6 | 37.8 | 29.2 | 22.7 | 35.1 | 34.6 | 27.8 | 30.8 | 35.8 | 35.7 | 33.8 |