金融庁長官（格付）　第1号

2023.11.06

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA

2023.09.19

【みずほ証券】MTN据置・限度額変更：AA
【Mizuho International】MTN据置・限度額変更：AA

2022.10.07

【みずほ証券】据置・MTN限度額変更：AA／安定的，J-1+
【Mizuho International】MTN据置・限度額変更：AA

2021.10.25

【みずほ証券】MTN据置・限度額変更：AA
【Mizuho International】MTN据置・限度額変更：AA
【Mizuho Securities USA】MTN据置・限度額変更：AA

2021.10.08

【みずほ証券】MTN据置：AA／安定的，J-1+
【Mizuho International】MTN据置：AA
【Mizuho Securities USA】MTN据置：AA

2021.01.18

【みずほ証券】据置・限度額変更：AA
【Mizuho International】据置・限度額変更：AA
【Mizuho Securities USA】据置・限度額変更：AA

2020.10.07

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2019.09.27

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2018.09.28

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2018.01.22

【みずほ証券】据置：AA
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2017.09.15

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2016.09.16

【みずほ証券】据置：AA／安定的，J-1+
【Mizuho International】据置：AA
【Mizuho Securities USA】据置：AA

2015.09.18

【みずほ証券】格上げ：AA-／ポジティブ→AA／安定的，据置：J-1+
【Mizuho International】格上げ：AA-→AA
【Mizuho Securities USA】格上げ：AA-→AA

2015.01.26

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2014.09.12

【みずほ証券】据置：AA-／ポジティブ，J-1+
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2013.09.13

【みずほ証券】据置・見通し変更：AA-／安定的→ポジティブ，J-1+
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2013.04.04

【みずほ証券】据置：AA-，MTN撤回
【Mizuho International】据置：AA-，MTN撤回
【Mizuho Securities USA】据置：AA-

2012.09.14

【みずほ証券】据置：AA-／安定的，A+（劣後），J-1+
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2011.09.09

【みずほ証券】据置：AA-／安定的，A+（劣後），J-1+
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2011.01.28

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2010.09.13

【みずほ証券】据置：AA-／安定的，A+（劣後），J-1+
【Mizuho International】据置：AA-
【Mizuho Securities USA】据置：AA-

2010.04.22

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-
【Mizuho Securities USA】MTN新規：AA-

2009.09.11

【みずほ証券】据置：AA-／安定的，A+（劣後），J-1+
【Mizuho International】据置：AA-

2009.05.08

【みずほ証券】MTN新規：AA-
【Mizuho International】新規：AA-

2009.04.30

【みずほ証券】据置：AA-／安定的，A+（劣後），J-1+
【Mizuho International】据置：AA-

2008.08.04

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-

2007.08.03

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-

2006.08.24

【みずほ証券】据置：AA-／安定的，J-1+
【Mizuho International】据置：AA-

2006.08.03

【みずほ証券】据置：AA-
【Mizuho International】据置：AA-

2005.08.12

【みずほ証券】格上げ：A+→AA-，J-1→J-1+
【Mizuho International】格上げ：A+→AA-