Company: VVR
Filing Date: 2025-03-21
Form Type: 424B5
Source: 0001104659-25-026711
Chunk: 140

Company: Invesco Senior Income Trust
Filing Date: 2025-03-21
Form: 424B5
Chunk 140
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 Form N-CSRS that are not specifically listed above are not incorporated by reference into this SAI and are not a part of this SAI. S-52

Appendix A

APPENDIX A - RATINGS OF DEBT SECURITIES The following is a description of the factors underlying the debt ratings of Moody's, S&P, and Fitch. Moody's Long-Term Debt Ratings Aaa : Obligations rated 'Aaa' are judged to be of the highest quality, subject to the lowest level of credit risk. Aa : Obligations rated 'Aa' are judged to be of high quality and are subject to very low credit risk. A : Obligations rated 'A' are judged to be upper-medium grade and are subject to low credit risk. Baa : Obligations rated 'Baa' are judged to be medium-grade and subject to moderate credit risk and as such may possess certain speculative characteristics. Ba : Obligations rated 'Ba' are judged to be speculative and are subject to substantial credit risk. B : Obligations rated 'B' are considered speculative and are subject to high credit risk. Caa : Obligations rated 'Caa' are judged to be speculative of poor standing and are subject to very high credit risk. Ca : Obligations rated 'Ca' are highly speculative and are likely in, or very near, default, with some prospect of recovery of principal and interest. C : Obligations rated 'C' are the lowest rated and are typically in default, with little prospect for recovery of principal or interest. Note: Moody's appends numerical modifiers 1, 2, and 3 to each generic rating classification from Aa through Caa. The modifier 1 indicates that the obligation ranks in the higher end of its generic rating category; the modifier 2 indicates a mid-range ranking; and the modifier 3 indicates a ranking in the lower end of that generic rating category. Additionally, a “(hyb)” indicator is appended to all ratings of hybrid securities issued by banks, insurers, finance companies, and securities firms*. * By their terms, hybrid securities allow for the omission of scheduled dividends, interest, or principal payments, which can potentially result in impairment if such an omission occurs. Hybrid securities may also be subject to contractually allowable write-downs of principal that could result in impairment. Together with the hybrid indicator, the long-term obligation rating assigned to a hybrid security is an expression of the relative credit risk associated with that security