B
Nautilus Ins Co
Rating Date
June 2026
NAIC
Classification
Risk Adjusted
Capital Ratio #1
Risk Adjusted
Capital Ratio #2
Loss
Ratio
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Total
Assets
Capital
Net
Premiums
Net
Income
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Major Rating Factors: Fair reserve development (3.6 on a scale of 0 to 10) as reserves have generally been sufficient to cover claims. Good overall profitability index (5.1). Excellent expense controls. Strong long-term capitalization index (10.0) based on excellent current risk adjusted capital (severe and moderate loss scenarios). Moreover, capital levels have been consistent in recent years.
Other Rating Factors: Good liquidity (7.0) with sufficient resources (cash flows and marketable investments) to handle a spike in claims. Excellent overall results on stability tests (6.9) despite excessive premium growth. Stability strengths include good operational trends and excellent risk diversification.
Stability Factors:
Principal Lines of Business: Fire (13.4%), product liab. (1.6%), comm multi (0.2%), other (84.8%)
Licensed in: AZ
Principal Investments: Investment grade bonds (82.8%), real estate (5.8%), non investment grade bonds (1.0%), other (10.4%)
Ratios
Premium to Surplus
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Reserve to Surplus
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1-Year Reserve Development
2-Year Reserve Development
Expense Ratio
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Combined Ratio
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Cash From Underwriting
Net Premium Growth
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Investments in Affiliates
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Corporate Info
Group Affiliation
W R Berkley Corporation
Investment Rating
WRB
Company Address
7233 East Butherus Drive
Scottsdale, AZ 85260
Phone Number
(480) 509-6627
NAIC Number
17370
Largest Affiliates
B
Greenwich, CT - P&C
B
Urbandale, IA - P&C
B
Scottsdale, AZ - P&C
B
URBANDALE, IA - L&A
B
Urbandale, IA - P&C