Credit Rating Agency Ratings History Data

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Under SEC Regulation 17g-7, Nationally Recognized Statistical Rating Organizations (NRSRSOs) are required to report their historical rating assignments, upgrades, downgrades and withdrawals since 2010. The files must be updated monthly, formatted in XBRL and posted to each rating agency's website. Rating data are generally reported on a one year delay.

Because most researchers are unfamiliar with XBRL and cannot easily locate the history files, this valuable resource has seen limited use. On this web page, we provide histories from multiple agencies converted to CSV format - which may be directly loaded into Microsoft Excel or Access.

The files linked below are named to denote the date provided, rating agency name and asset category.

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• 20220601 Standard & Poor's Ratings Services ABCP.csv (778 lines)
• 20220601 Standard & Poor's Ratings Services CDO.csv (13608 lines)
• 20220601 Standard & Poor's Ratings Services CLO.csv (48571 lines)
• 20220601 Standard & Poor's Ratings Services CMBS.csv (25431 lines)
• 20220601 Standard & Poor's Ratings Services Corporate.csv (377627 lines)
• 20220601 Standard & Poor's Ratings Services Financial.csv (284151 lines)
• 20220601 Standard & Poor's Ratings Services INT Public.csv (64654 lines)
• 20220601 Standard & Poor's Ratings Services Insurance.csv (77295 lines)
• 20220601 Standard & Poor's Ratings Services Other ABS.csv (66773 lines)
• 20220601 Standard & Poor's Ratings Services Other SFP.csv (9299 lines)
• 20220601 Standard & Poor's Ratings Services RMBS.csv (161120 lines)
• 20220601 Standard & Poor's Ratings Services Sovereign.csv (79164 lines)
• 20220601 Standard & Poor's Ratings Services US Public.csv (5445743 lines)
• 20220515 Moody's Investors Service ABCP.csv (478 lines)
• 20220515 Moody's Investors Service CDO.csv (8541 lines)
• 20220515 Moody's Investors Service CLO.csv (368 lines)
• 20220515 Moody's Investors Service CMBS.csv (33855 lines)
• 20220515 Moody's Investors Service Corporate.csv (94364 lines)
• 20220515 Moody's Investors Service Financial.csv (104175 lines)
• 20220515 Moody's Investors Service INT Public.csv (14758 lines)
• 20220515 Moody's Investors Service Insurance.csv (7351 lines)
• 20220515 Moody's Investors Service Other ABS.csv (38303 lines)
• 20220515 Moody's Investors Service Other SFP.csv (187661 lines)
• 20220515 Moody's Investors Service RMBS.csv (99537 lines)
• 20220515 Moody's Investors Service Sovereign.csv (155736 lines)
• 20220515 Moody's Investors Service US Public.csv (3718903 lines)
• 20220501 Fitch Ratings ABCP.csv (59 lines)
• 20220501 Fitch Ratings CDO.csv (7199 lines)
• 20220501 Fitch Ratings CLO.csv (45 lines)
• 20220501 Fitch Ratings CMBS.csv (25569 lines)
• 20220501 Fitch Ratings Corporate.csv (48832 lines)
• 20220501 Fitch Ratings Financial.csv (197631 lines)
• 20220501 Fitch Ratings INT Public.csv (12778 lines)
• 20220501 Fitch Ratings Insurance.csv (5917 lines)
• 20220501 Fitch Ratings Other ABS.csv (12154 lines)
• 20220501 Fitch Ratings RMBS.csv (103806 lines)
• 20220501 Fitch Ratings Sovereign.csv (43476 lines)
• 20220501 Fitch Ratings US Public.csv (583860 lines)
• 20220430 Japan Credit Rating Agency,Ltd. Corporate.csv (22492 lines)
• 20220430 Japan Credit Rating Agency,Ltd. Financial.csv (7812 lines)
• 20220430 Japan Credit Rating Agency,Ltd. INT Public.csv (3537 lines)
• 20220430 Japan Credit Rating Agency,Ltd. Insurance.csv (634 lines)
• 20220430 Japan Credit Rating Agency,Ltd. Sovereign.csv (830 lines)
• 20220501 A.M.BEST COMPANY CDO.csv (186 lines)
• 20220501 A.M.BEST COMPANY Corporate.csv (12611 lines)
• 20220501 A.M.BEST COMPANY Insurance.csv (75865 lines)
• 20220501 A.M.BEST COMPANY Other SFP.csv (34 lines)
• 20220501 Kroll Bond Rating Agency, Inc. CDO.csv (408 lines)
• 20220501 Kroll Bond Rating Agency, Inc. CMBS.csv (20470 lines)
• 20220501 Kroll Bond Rating Agency, Inc. Corporate.csv (146 lines)
• 20220501 Kroll Bond Rating Agency, Inc. Financial.csv (10963 lines)
• 20220501 Kroll Bond Rating Agency, Inc. Insurance.csv (468 lines)
• 20220501 Kroll Bond Rating Agency, Inc. Other ABS.csv (9352 lines)
• 20220501 Kroll Bond Rating Agency, Inc. RMBS.csv (28216 lines)
• 20220501 Kroll Bond Rating Agency, Inc. Sovereign.csv (47 lines)
• 20220501 Kroll Bond Rating Agency, Inc. US Public.csv (186894 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Corporate.csv (2327 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Financial.csv (6512 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. INT Public.csv (3796 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Insurance.csv (104 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Other ABS.csv (594 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Sovereign.csv (56 lines)
• 20220512 HR Ratings de Mexico S.A. de C.V. Sustainable Impact.csv (27 lines)
• 20220523 DBRS ABCP.csv (269 lines)
• 20220523 DBRS CDO.csv (1218 lines)
• 20220523 DBRS CLO.csv (2013 lines)
• 20220523 DBRS CMBS.csv (13990 lines)
• 20220523 DBRS Corporate.csv (2196 lines)
• 20220523 DBRS Financial.csv (10159 lines)
• 20220523 DBRS INT Public.csv (377 lines)
• 20220523 DBRS Insurance.csv (158 lines)
• 20220523 DBRS Other ABS.csv (13412 lines)
• 20220523 DBRS Other SFP.csv (5181 lines)
• 20220523 DBRS RMBS.csv (61350 lines)
• 20220523 DBRS Sovereign.csv (232 lines)

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Abbreviations in these files are explained in Section 2.4 of the SEC's Rating History Publication Guide.

Download and parsing script available on Github.

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This resource was created by the Center for Municipal Finance with the generous support from the Center for Corporate and Securities Law at the University of San Diego School of Law.

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