B
Plymouth Rock Assurance Corp
Boston,  MA
Rating Date
June 2026
NAIC
Classification
Risk Adjusted
Capital Ratio #1
Risk Adjusted
Capital Ratio #2
Loss
Ratio
Total
Assets
Capital
Net
Premiums
Net
Income
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Major Rating Factors: Good overall profitability index (6.0 on a scale of 0 to 10) despite operating losses during 2023. Good liquidity (5.4) with sufficient resources (cash flows and marketable investments) to handle a spike in claims. Strong long-term capitalization index (7.2) based on excellent current risk adjusted capital (severe and moderate loss scenarios) reflecting improvement over results in 2024.
Other Rating Factors: History of adequate reserve strength (6.9) as reserves have been consistently at an acceptable level. Excellent overall results on stability tests (7.9). Stability strengths include excellent operational trends and excellent risk diversification.
Stability Factors: L - Past results on our liquidity tests.
Principal Lines of Business: Personal/comm auto (95.3%), homeowners (4.2%), other (0.5%)
Licensed in: CT, MA, RI
Principal Investments: Common stock (52.4%), investment grade bonds (31.8%), non investment grade bonds (8.9%), other (6.9%)
Ratios
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Reserve to Surplus
1-Year Reserve Development
2-Year Reserve Development
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Investments in Affiliates
Corporate Info
Group Affiliation
Plymouth Rock Co Incorporated
Investment Rating
--
Company Address
695 Atlantic Avenue
Boston, MA 02111
Phone Number
(617) 720-1620
NAIC Number
14737
Largest Affiliates