減損損失、減損損失 - みずほ証券（連結）、有価証券
- 【期間】
| 年度 | 減損損失 | 減損損失 - みずほ証券（連結） | 有価証券 |
|---|
| 2008/03 | 27億 | | - | | 34兆 | |
| 2009/03 | 109億 | +303.9% | - | | 30.2兆 | -11.1% |
| 2010/03 | 47.4億 | -56.5% | - | | 43.1兆 | +42.8% |
| 2011/03 | 35.5億 | -25.2% | - | | 44.8兆 | +3.9% |
| 2012/03 | 70.7億 | +99.3% | - | | 51.4兆 | +14.8% |
| 2013/03 | 119億 | +68.6% | 17.4億 | | 53.5兆 | +4% |
| 2014/03 | 65.1億 | -45.4% | - | | 44兆 | -17.7% |
| 2015/03 | 114億 | +74.6% | - | | 43.3兆 | -1.6% |
| 2016/03 | 44.1億 | -61.2% | - | | 39.5兆 | -8.7% |
| 2017/03 | 66.5億 | +50.7% | - | | 32.4兆 | -18.1% |
| 2018/03 | 69.6億 | +4.6% | - | | 34.2兆 | +5.7% |
| 2019/03 | 5036億 | 大幅増 | - | | 29.8兆 | -12.9% |
| 2020/03 | 152億 | -97% | - | | 34.9兆 | +17.2% |
| 2021/03 | 128億 | -16% | - | | 43.7兆 | +25.2% |
| 2022/03 | 276億 | +115.6% | - | | 44.6兆 | +2.2% |
| 2023/03 | 515億 | +86.9% | - | | 37.4兆 | -16.3% |
