Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Claims Ratio % is the percentage of claims costs incurred in relation to the premiums earned.
White Mountains Insurance Group's Claims Ratio % for the annual that ended in Dec. 2025 was 0.00%
, which is lower than
59.00% for the pervious year ended in Dec. 2016.
The historical rank and industry rank for White Mountains Insurance Group's Claims Ratio % or its related term are showing as below:
WTM's Claims Ratio % is not ranked *
in the Insurance industry.
Industry Median: * Ranked among companies with meaningful Claims Ratio % only.
White Mountains Insurance Group (NYSE:WTM) Claims Ratio % Explanation
Claims Ratio % the percentage of claims costs incurred in relation to the premiums earned during the period. It is the equivalent of gross profit margin for an insurance company.
It's important to note that insurance is the business of managing risks and, to do that well, the insurer needs a thorough understanding of the incurred claims ratio. If the value is higher than expected or above established norms, then further investigation is required to figure out why that is (eg: fraud). If it is lower than expected, it could indicate irrelevant products or difficulties in claiming, possibly affecting customer satisfaction.
White Mountains Insurance Group Claims Ratio % Related Terms
White Mountains Insurance Group Claims Ratio % Historical Data
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
White Mountains Insurance Group Claims Ratio % Chart
For the Insurance - Property & Casualty subindustry, White Mountains Insurance Group's Claims Ratio %, along with its competitors' market caps and Claims Ratio % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
White Mountains Insurance Group (NYSE:WTM) Claims Ratio % Calculation
Claims Ratio % is calculated as
Claims Ratio %
=
Total Claims
/
Total Premiums Earned
*
100%
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Frequently Asked Questions
What does a Claims Ratio % of 0.00% mean?
White Mountains Insurance Group (WTM) has a Claims Ratio % of 0.00% as of Sep. 2017. Claims Ratio is the percentage of claims costs incurred in relation to the premiums earned. View historical data on White Mountains Insurance Group and its competitors.
Is White Mountains Insurance Group's Claims Ratio % too high?
White Mountains Insurance Group's current Claims Ratio % is 0.00%. Overall, White Mountains Insurance Group has a GF Score™ of 74/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does White Mountains Insurance Group's Claims Ratio % compare to SIGI and MCY?
White Mountains Insurance Group's Claims Ratio % of 0.00% can be compared against companies in the Insurance industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Claims Ratio % for an Insurance company?
A good Claims Ratio % depends on the Insurance industry context. However, Claims Ratio % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Claims Ratio % mean?
A high Claims Ratio % can signal that a stock is expensive relative to its fundamentals. Claims Ratio is the percentage of claims costs incurred in relation to the premiums earned. View historical data on White Mountains Insurance Group and its competitors. White Mountains Insurance Group's current Claims Ratio % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is White Mountains Insurance Group stock overvalued right now?
Based on GuruFocus' analysis, White Mountains Insurance Group (WTM) is currently considered Modestly Undervalued. The stock's GF Value™ is $2,450.63, compared to a current price of $2,103.49 — trading 14.2% below its estimated fair value. The current Claims Ratio % is 0.00%. White Mountains Insurance Group's overall GF Score™ is 74/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Claims Ratio % calculated?
Claims Ratio % is calculated from a company's financial statements. For White Mountains Insurance Group (WTM), the current Claims Ratio % is 0.00% as of Sep. 2017. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is White Mountains Insurance Group (WTM) Overvalued in 2026?
Based on GuruFocus' analysis, White Mountains Insurance Group stock appears to be undervalued.
The current stock price of $2,103.49 is trading 14.2% below its estimated GF Value™ of $2,450.63.
GuruFocus considers White Mountains Insurance Group to be Modestly Undervalued.
Key valuation signals for WTM:
Claims Ratio %: 0.00%
GF Value™: $2,450.63 vs. price of $2,103.49 (14.2% below fair value)
No single metric tells the full story. See the WTM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
White Mountains Insurance Group Ltd is engaged in the business of making opportunistic and value-oriented acquisitions of businesses and assets in the insurance, financial services, and related sectors, operating these businesses and assets through its subsidiaries and, if and when attractive exit valuations become available, disposing of these businesses and assets. The company conducts its business in five areas: property and casualty insurance and reinsurance, municipal bond reinsurance, capital solutions for asset and wealth management firms, property and casualty insurance distribution, and other operations. The company has four reportable segments: Ark/WM Outrigger, HG Global, Kudu and Distinguished.
74GF Score
Get the complete analysis for WTM
Claims Ratio % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
WTM has been successfully added to your 
