E
Ambac Assurance Corp
Rating Date
October 2025
NAIC
Classification
Risk Adjusted
Capital Ratio #1
Risk Adjusted
Capital Ratio #2
Loss
Ratio
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Capital
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Premiums
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Major Rating Factors: Weak overall results on stability tests (0.0 on a scale of 0 to 10) including weak results on operational trends and fair risk adjusted capital in prior years. The largest net exposure for one risk is excessive at 99.4% of capital. Fair profitability index (3.1) with operating losses during 2020, 2021, 2023 and 2024. Return on equity has been low, averaging 4.8% over the past five years. History of adequate reserve strength (6.0) as reserves have been consistently at an acceptable level.
Other Rating Factors: Good liquidity (6.7) with sufficient resources (cash flows and marketable investments) to handle a spike in claims. Strong long-term capitalization index (7.3) based on excellent current risk adjusted capital (severe and moderate loss scenarios) reflecting significant improvement over results in 2021.
Stability Factors: D - Limited diversification of general business, policy, and/or investment risk. R - Concerns about the financial strength of its reinsurers. T - Significant trends in critical asset, liability, income or expense items.
Principal Lines of Business: Fin guar/surety (100.0%)
Licensed in: All states except TN, also licensed in PR, VI
Principal Investments: Investment grade bonds (67.4%), non investment grade bonds (11.8%), cash (0.1%), other (20.7%)
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1-Year Reserve Development
2-Year Reserve Development
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Investments in Affiliates
Corporate Info
Group Affiliation
Ambac Financial Group Inc
Investment Rating
--
Company Address
Harborside Plaza 10
Jersey City, NJ 07302
Phone Number
(212) 658-7470
NAIC Number
18708
Largest Affiliates
B
New York, NY - P&C
B
New York, NY - P&C
C
New York, NY - P&C
C
New York, NY - P&C
B