減損損失、減損損失 - みずほ証券（連結）、貸倒引当金戻入益
- 【期間】
| 年度 | 減損損失 | 減損損失 - みずほ証券（連結） | 貸倒引当金戻入益 |
|---|
| 2008/03 | 27億 | | - | | - | |
| 2009/03 | 109億 | +303.9% | - | | - | |
| 2010/03 | 47.4億 | -56.5% | - | | - | |
| 2011/03 | 35.5億 | -25.2% | - | | - | |
| 2012/03 | 70.7億 | +99.3% | - | | 353億 | |
| 2013/03 | 119億 | +68.6% | 17.4億 | | - | |
| 2014/03 | 65.1億 | -45.4% | - | | 1037億 | +193.5% |
| 2015/03 | 114億 | +74.6% | - | | 733億 | -29.3% |
| 2016/03 | 44.1億 | -61.2% | - | | - | |
| 2017/03 | 66.5億 | +50.7% | - | | - | |
| 2018/03 | 69.6億 | +4.6% | - | | 1591億 | +117% |
| 2019/03 | 5036億 | 大幅増 | - | | 43.6億 | -97.3% |
| 2020/03 | 152億 | -97% | - | | - | |
| 2021/03 | 128億 | -16% | - | | - | |
| 2022/03 | 276億 | +115.6% | - | | - | |
| 2023/03 | 515億 | +86.9% | - | | - | |
