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White Mountains Insurance Group Ltd (WTM)

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Upturn Advisory Summary
01/09/2026: WTM (1-star) has a low Upturn Star Rating. Not recommended to BUY.
Analysis of Past Performance
Type Stock | Historic Profit -14.5% | Avg. Invested days 36 | Today’s Advisory Consider higher Upturn Star rating |
Upturn Star Rating ![]() | Upturn Advisory Performance | Stock Returns Performance |
Key Highlights
Company Size Mid-Cap Stock | Market Capitalization 4.59B USD | Price to earnings Ratio 166.72 | 1Y Target Price 360 |
Price to earnings Ratio 166.72 | 1Y Target Price 360 | ||
Volume (30-day avg) - | Beta 0.36 | 52 Weeks Range 1665.34 - 2021.93 | Updated Date 06/29/2025 |
52 Weeks Range 1665.34 - 2021.93 | Updated Date 06/29/2025 | ||
Dividends yield (FY) 0.06% | Basic EPS (TTM) 10.7 |
Earnings Date
Report Date - | When - | Estimate - | Actual - |
Profitability
Profit Margin 1.22% | Operating Margin (TTM) 17.29% |
Management Effectiveness
Return on Assets (TTM) 2.46% | Return on Equity (TTM) 2.49% |
Valuation
Trailing PE 166.72 | Forward PE - | Enterprise Value 4955447023 | Price to Sales(TTM) 2.01 |
Enterprise Value 4955447023 | Price to Sales(TTM) 2.01 | ||
Enterprise Value to Revenue 2.17 | Enterprise Value to EBITDA - | Shares Outstanding 2573730 | Shares Floating 2457425 |
Shares Outstanding 2573730 | Shares Floating 2457425 | ||
Percent Insiders 3.22 | Percent Institutions 91.88 |
Upturn AI SWOT
White Mountains Insurance Group Ltd

Company Overview
History and Background
White Mountains Insurance Group, Ltd. was founded in 1972. It initially operated as a diversified financial services company. Over the years, it has strategically shifted its focus and divested various businesses to concentrate on insurance and reinsurance operations. Significant milestones include acquisitions and divestitures that have shaped its current portfolio, emphasizing specialty insurance and reinsurance. The company has a history of acquiring and managing insurance entities, aiming to generate attractive returns on capital.
Core Business Areas
- Specialty Property & Casualty Insurance: Underwrites a range of specialty property and casualty insurance products, often focusing on niche markets or complex risks. This includes offerings for commercial clients and, in some cases, personal lines.
- Reinsurance: Provides reinsurance to other insurance companies, allowing them to transfer risk. This segment focuses on various lines of business and geographic regions.
- Run-off Solutions: Manages and settles legacy insurance portfolios that are no longer actively underwritten, aiming to resolve claims and return capital.
Leadership and Structure
White Mountains Insurance Group Ltd. operates with a lean corporate structure, overseeing its various operating subsidiaries. The leadership team is comprised of experienced professionals in the insurance and finance industries. The company's structure emphasizes decentralized operations for its underwriting subsidiaries, allowing them to maintain specialized expertise while benefiting from the group's capital and strategic oversight.
Top Products and Market Share
Key Offerings
- Specialty P&C Insurance: Offers highly specialized property and casualty insurance policies designed to cover unique or high-risk exposures that standard insurers may avoid. This includes niche coverages for various industries. Market share in these highly specialized segments is difficult to quantify universally as they are not broadly reported like mainstream insurance. Key competitors vary by specific niche but can include companies like The Hanover Insurance Group, Travelers, Chubb, and Berkshire Hathaway's insurance operations when they enter specific specialty lines.
- Reinsurance Services: Provides reinsurance capacity across a spectrum of insurance lines, offering risk mitigation to primary insurers. Market share is also fragmented and depends on the specific lines of business and reinsurer. Competitors include global reinsurers like Swiss Re, Munich Re, and RenaissanceRe.
- Run-off Portfolio Management: Acquires and manages portfolios of closed or 'run-off' insurance business, efficiently resolving claims and administrative obligations. This is a specialized market with fewer dedicated players, including companies like Enstar Group and Catalina Holdings.
Market Dynamics
Industry Overview
The insurance and reinsurance industry is characterized by its cyclical nature, sensitivity to economic conditions, and susceptibility to catastrophic events. Specialty insurance and reinsurance markets often offer higher margins but also come with concentrated risks. The industry is also increasingly influenced by technological advancements, regulatory changes, and evolving customer demands. The market for run-off solutions is growing as companies seek to de-risk their balance sheets.
Positioning
White Mountains Insurance Group Ltd. positions itself as a holding company that strategically acquires and manages profitable specialty insurance and reinsurance businesses. Its competitive advantages lie in its disciplined underwriting, capital allocation expertise, and its ability to identify and capitalize on under-served niche markets. The company's focus on specialty lines allows it to avoid direct competition in highly commoditized markets.
Total Addressable Market (TAM)
The TAM for the global insurance and reinsurance market is in the trillions of dollars. White Mountains Insurance Group Ltd, by focusing on specific specialty niches and reinsurance, addresses a significant but segmented portion of this TAM. Its positioning is within high-margin specialty sectors, allowing it to achieve a substantial market presence within those particular segments rather than across the entire industry.
Upturn SWOT Analysis
Strengths
- Strong track record of capital allocation and investment.
- Expertise in niche and specialty insurance markets.
- Disciplined underwriting approach.
- Experienced management team with deep industry knowledge.
- Ability to generate attractive returns on capital.
Weaknesses
- Limited diversification across a broad range of insurance products.
- Reliance on a few key operating subsidiaries.
- Potential for underwriting losses in volatile catastrophe-prone markets.
- Smaller scale compared to global insurance giants.
Opportunities
- Growth in specialty insurance markets due to increasing complexity of risks.
- Expansion into new geographic regions or specialized product lines.
- Opportunities in the growing run-off solutions market.
- Strategic acquisitions to enhance existing capabilities or enter new niches.
- Leveraging technology to improve underwriting efficiency and customer experience.
Threats
- Increased competition in specialty insurance segments.
- Unforeseen catastrophic events impacting underwriting results.
- Changes in regulatory environments.
- Economic downturns affecting demand for insurance products.
- Interest rate fluctuations impacting investment income.
Competitors and Market Share
Key Competitors
- RenaissanceRe Holdings Ltd. (RNR)
- Everest Re Group Ltd. (RE)
- Validus Holdings, Ltd. (VLG) (now part of AIG)
- Arch Capital Group Ltd. (ACGL)
Competitive Landscape
White Mountains Insurance Group Ltd. competes in the specialty insurance and reinsurance markets. Its competitive advantages include a strong focus on niche markets, disciplined underwriting, and effective capital management. However, it faces competition from larger, more diversified global reinsurers and specialized insurers that may have greater scale, broader product offerings, and deeper market penetration. The company's success hinges on its ability to maintain underwriting discipline and identify profitable opportunities in its chosen segments.
Growth Trajectory and Initiatives
Historical Growth: White Mountains Insurance Group Ltd.'s historical growth has been characterized by strategic acquisitions, divestitures, and organic growth within its core insurance and reinsurance segments. The company has a proven ability to identify underperforming or non-core assets and divest them, while acquiring and growing businesses that align with its specialty focus.
Future Projections: Future projections for White Mountains Insurance Group Ltd. are likely to be influenced by the performance of its specialty insurance and reinsurance operations, its ability to deploy capital effectively, and the overall economic and insurance market conditions. Analysts' estimates would typically focus on book value growth and earnings per share.
Recent Initiatives: Recent initiatives by White Mountains Insurance Group Ltd. have likely involved the acquisition or expansion of its specialty insurance and reinsurance businesses, as well as potentially optimizing its capital structure and returning capital to shareholders.
Summary
White Mountains Insurance Group Ltd. is a well-established holding company focused on specialty insurance and reinsurance. Its strengths lie in disciplined underwriting, strategic capital allocation, and expertise in niche markets, leading to consistent book value growth. However, it faces risks from industry cycles, catastrophic events, and competition from larger players. Future success depends on continued prudent management, identifying profitable specialty opportunities, and effectively managing its investment portfolio.
Similar Stocks
Sources and Disclaimers
Data Sources:
- Company Investor Relations
- Financial News Outlets
- Industry Analysis Reports
- Financial Data Providers
Disclaimers:
This analysis is based on publicly available information and is for informational purposes only. It does not constitute investment advice. Financial performance data and market share figures are subject to change and may not be fully comprehensive. Readers should conduct their own due diligence before making any investment decisions.
AI Summarization is directionally correct and might not be accurate.
Summarized information shown could be a few years old and not current.
Fundamental Rating based on AI could be based on old data.
AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.
About White Mountains Insurance Group Ltd
Exchange NYSE | Headquaters - | ||
IPO Launch date 1986-05-09 | CEO & Director Mr. George Manning Rountree | ||
Sector Financial Services | Industry Insurance - Property & Casualty | Full time employees 893 | Website https://www.whitemountains.com |
Full time employees 893 | Website https://www.whitemountains.com | ||
White Mountains Insurance Group, Ltd., through its subsidiaries, provides insurance and other financial services in the United States. The company operates through HG Global/BAM, Ark/WM Outrigger, Kudu, and Other Operations segments. The HG Global/BAM segment provides insurance on municipal bonds issued to finance public purposes, such as schools, utilities, and transportation facilities, as well as reinsurance protection services. The Ark/WM Outrigger segment offers reinsurance and insurance, including property, marine and energy, accident and health, casualty, and specialty products. The Kudu segment provides capital solutions to boutique asset and wealth managers for generational ownership transfers, management buyouts, acquisitions and growth finances, and legacy partner liquidity, as well as strategic assistance to investees. The Other Operations segment offers insurance solutions to travel industry through broker channel and on a direct-to-consumer basis; and manages separate accounts and pooled investment vehicles for insurance-linked securities sectors, including catastrophe bonds, collateralized reinsurance investments, and industry loss warranties of third-party clients. White Mountains Insurance Group, Ltd. was incorporated in 1980 and is headquartered in Hamilton, Bermuda.

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