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Moody's Ratings upgrades to Aa1 LOC-backed rating of Cook (County of) IL, Taxable General Obligation Variable Rate Bonds Series 2004D

Moody's Ratings (Moody's) has upgraded to Aa1 from Aa2 the LOC-backed rating of Cook (County of) IL, Taxable General Obligation Variable Rate Bonds Series 2004D (the Bonds). On September 11, 2025, we upgraded Cook (County of) IL's issuer rating to Aa3 from A1. In connection with the upgrade, we reev...
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Moody's Investors Service
Moody's Investors Service

Moody's Investors Service is a leading provider of credit ratings, research, and risk analysis. Moody's commitment and expertise contributes to transparent and integrated financial markets, protecting the integrity of credit. Our ratings and analysis track debt covering more than:

  • 130 countries
    11,000 corporate issuers
    21,000 public finance issuers
    76,000 structured finance obligations



Credit ratings and research help investors analyze the credit risks associated with fixed-income securities. Such independent credit ratings and research also contribute to efficiencies in fixed-income markets and other obligations, such as insurance policies and derivative transactions, by providing credible and independent assessments of credit risk.



Moody’s default studies validate our predictive ratings. Our published research and investor briefings draw thousands of attendees each year and keep investors current with the rationale underlying our credit opinions. 

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