Business Overview: Palomar Holdings, Inc. (NASDAQ: PLMR)

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Executive Summary

Palomar Holdings, Inc. is a specialty property and casualty insurer focused on underwriting risks that larger, generalist carriers tend to avoid or underprice — most notably earthquake, Hawaii hurricane, and other catastrophe-exposed property risks, alongside growing casualty, crop, and fronting businesses. Palomar writes business in both the admitted and excess and surplus (E&S) markets, distributing through retail agents, wholesale brokers, program administrators, and a network of more than 35 insurance carrier partners.

The company matters because it has built a genuinely differentiated underwriting franchise around proprietary, geocode-level catastrophe pricing models, growing gross written premium from roughly $1.14 billion in 2023 to $2.03 billion in 2025 while posting a 2025 return on equity of 23.6% — a level of profitable growth that is unusual in catastrophe-exposed specialty insurance.

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1. Core Business Model & How They Work

Palomar underwrites specialty and catastrophe-exposed insurance risk, then manages that risk through a combination of proprietary pricing, diversification across perils and geographies, and an extensive reinsurance program.

[ Proprietary Catastrophe Pricing Models ] ➡️ [ Underwrite via Agents/Brokers/MGAs ] ➡️ [ Collect Premium ] ➡️ [ Cede Risk via Reinsurance/Cat Bonds ] ➡️ [ Retain Underwriting Profit + Fee Income ]

Key Operational Drivers

1. "Write what we know" underwriting philosophy: Pricing relies on proprietary catastrophe and risk models rather than generic industry loss curves, letting Palomar price niche risks like earthquake and flood more precisely than generalist carriers.
2. Automated and judgment-based underwriting: Personal lines are automatically underwritten at scale, while commercial risks blend automation with underwriter judgment for more complex exposures.
3. Extensive reinsurance program: Catastrophe retention is $20.0 million for earthquakes and $11.0 million for hurricanes and other perils, with earthquake reinsurance exhausting at $3.1 billion and roughly $1.2 billion of multi-year catastrophe bond coverage through its Torrey Pines Re vehicle — materially limiting tail risk from any single event.
4. Fee income from fronting and ceding: Beyond underwriting profit, Palomar earns fee income from quota share reinsurance ceding commissions and from writing policies on behalf of other carriers and reinsurers.
5. Bolt-on M&A into adjacent lines: Recent acquisitions — First Indemnity of America (January 2025), Advanced AgProtection (April 2025), and The Gray Casualty & Surety Company (January 2026, renamed Palomar Casualty & Surety Company) — have built out Palomar's Surety and Crop businesses.

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2. Business Segments

Palomar reports results primarily by product line rather than traditional segments:

┌───────────────────────────────────────────┐
│          Palomar Holdings, Inc.             │
│      2025 Gross Written Premium: $2.03B      │
└──────────────────────┬────────────────────────┘
                        │
   ┌─────────┬──────────┼──────────┬──────────┐
   ▼         ▼          ▼          ▼          ▼
┌────────┐┌────────┐┌──────────┐┌────────┐┌──────────┐
│Earthqk ││Casualty││Inland    ││Crop    ││Fronting   │
│28.2%   ││26.8%   ││Marine &  ││12.2%   ││10.8%      │
│$571.4M ││$542.9M ││Other Prop││$247.5M ││$220.2M    │
│        ││        ││22.0%     ││        ││           │
│        ││        ││$446.2M   ││        ││           │
└────────┘└────────┘└──────────┘└────────┘└──────────┘

Earthquake (residential and commercial, priced at the ZIP code or geocode level) remains the single largest and most distinctive line. Casualty covers niche E&S segments including environmental liability and surety. Inland Marine and Other Property includes Hawaii Hurricane and residential flood coverage. Crop is primarily multi-peril crop insurance tied to the USDA's Risk Management Agency. Fronting uses Palomar's licensed carrier shells to write business for other insurers and MGAs in exchange for fee income.

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3. Product Portfolio

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4. Competitive Landscape

                SPECIALTY INSURANCE POSITIONING
┌────────────────────────────────────────────────────────┐
│ High                                                      │
│  ▲      [PALOMAR]                                         │
│  C      (Cat-modeling depth, earthquake/Hawaii niche)      │
│  A                                                         │
│  T      [Kinsale Capital]      [W.R. Berkley]              │
│  /      (broad E&S)            (diversified specialty)      │
│  N                                                          │
│  I      [RLI]            [Skyward Specialty] [Bowhead]      │
│  C      (diversified niche)    (newer E&S entrants)          │
│  H  Low                                                       │
│     └─────────────────────────────────────────────────►      │
│       Low          SCALE / DIVERSIFICATION          High      │
└────────────────────────────────────────────────────────┘

Named competitors include Kinsale Capital, RLI, Skyward Specialty, W.R. Berkley, and Bowhead Specialty in the broader E&S market; in crop insurance, Palomar competes against 11 other federal crop carriers plus Lloyd's of London syndicates in certain lines; and in catastrophe property, it also competes indirectly with public risk pools such as the California Earthquake Authority and the National Flood Insurance Program.

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5. Strategic Strengths & Risks

Competitive Strengths (The Moat)

• Proprietary catastrophe pricing: Geocode-level earthquake and hurricane models are difficult for generalist carriers to replicate quickly, giving Palomar an underwriting edge in its core niches.
• Disciplined, diversified reinsurance structure: A multi-layered reinsurance and catastrophe bond program (including the Torrey Pines Re cat bond vehicle) lets Palomar write substantial catastrophe exposure while limiting single-event tail risk.
• Consistent profitable growth: Gross written premium nearly doubled from 2023 to 2025 while return on equity rose to 23.6%, a combination rarely sustained in catastrophe-exposed insurance.

Strategic Risks

• Catastrophe concentration: Despite reinsurance, a sufficiently large or unusual earthquake or hurricane event could still produce outsized losses relative to peers with more diversified books.
• Reinsurance market dependence: Palomar's economics depend on reinsurance being available at favorable terms; a hardening reinsurance market could compress margins or retention capacity.
• Integration risk from M&A: Three acquisitions in roughly a year (First Indemnity, Advanced AgProtection, Gray Casualty & Surety) add execution risk as the company integrates new product lines.
• Regulatory and rate approval risk: Catastrophe-line pricing is subject to state regulatory approval, which can lag the company's own view of risk.

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6. Financial Overview

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7. Summary Conclusion

Palomar Holdings has built a genuinely differentiated specialty insurance franchise around proprietary catastrophe pricing in markets — earthquake and Hawaii hurricane chief among them — where larger, generalist insurers are structurally disadvantaged. Disciplined reinsurance and catastrophe bond coverage have let the company grow premium rapidly while maintaining industry-leading returns on equity. The clearest forward risk is concentration: despite extensive risk transfer, Palomar's fortunes remain tied to the frequency and severity of the very catastrophe events its underwriting expertise is built to price.