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12-1 Month Momentum % is the total return of the stock from 12-month ago to 1-month ago. As of today (2026-08-09), White Mountains Insurance Group's 12-1 Month Momentum % is 23.74%.
White Mountains Insurance Group (NYSE:WTM) 12-1 Month Momentum % Explanation
Momentum investing is a trading strategy in which investors buy securities that are rising and sell before the prices start to go back down. The 12-1 Month Momentum % measures the total return to a stock over the past twelve months, but ignores the previous month.
The reason why the most recent month’s return dropped related to the short-term reversal effect associated with momentum. There is an academic finding that short-term momentum actually has a reversal effect, whereby the previous winners (measured over the past months) do poorly the next month, while the previous losers do well the next month. In order to eliminate the short-term reversal effect, the previous month return was not included in this calculation.
White Mountains Insurance Group 12-1 Month Momentum % Related Terms
WTM vs RLI, SIGI, MCY: 12-1 Month Momentum % Comparison
For the Insurance - Property & Casualty subindustry, White Mountains Insurance Group's 12-1 Month Momentum %, along with its competitors' market caps and 12-1 Month Momentum % 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 12-1 Month Momentum % vs Insurance Industry
For the Insurance industry and Financial Services sector, White Mountains Insurance Group's 12-1 Month Momentum % distribution charts can be found below:
* The bar in red indicates where White Mountains Insurance Group's 12-1 Month Momentum % falls into.
White Mountains Insurance Group (NYSE:WTM) 12-1 Month Momentum % Calculation
12-1 Month Momentum % is calculated as following:
12-1 Month Momentum %
=
( Price 1-month ago
/
Price 12-month ago
- 1 )
*
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.
White Mountains Insurance Group (WTM) has a 12-1 Month Momentum % of 23.74% as of Aug. 09, 2026. 12-1 Month Momentum measures the total return of the stock from 12-month ago to 1-month ago. View historical data on White Mountains Insurance Group and its competitors. According to the industry distribution chart, White Mountains Insurance Group ranks #199 out of 587 companies in the Insurance industry, placing it in the top 33.9%.
Is White Mountains Insurance Group's 12-1 Month Momentum % too high?
White Mountains Insurance Group's current 12-1 Month Momentum % is 23.74%. The Insurance industry median 12-1 Month Momentum % is 7.79. White Mountains Insurance Group's value of 23.74% is 204.7% above this industry median. Based on the distribution chart, White Mountains Insurance Group ranks #199 out of 587 companies in the Insurance industry, which is above the industry midpoint. Overall, White Mountains Insurance Group has a GF Score™ of 75/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does White Mountains Insurance Group's 12-1 Month Momentum % compare to RLI and SIGI?
According to the Insurance industry distribution chart, White Mountains Insurance Group ranks #199 out of 587 companies for 12-1 Month Momentum %. This puts White Mountains Insurance Group in the upper half of its industry. The industry median 12-1 Month Momentum % is 7.79. White Mountains Insurance Group's value of 23.74% is 204.7% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 12-1 Month Momentum % for an Insurance company?
The median 12-1 Month Momentum % among Insurance companies is 7.79, based on 587 companies in the industry. Companies in the top quartile (top 25%) have a 12-1 Month Momentum % significantly above this median, while those in the bottom quartile fall well below. However, 12-1 Month Momentum % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. White Mountains Insurance Group's current 12-1 Month Momentum % of 23.74% is 204.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 12-1 Month Momentum % mean?
A high 12-1 Month Momentum % can signal that a stock is expensive relative to its fundamentals. 12-1 Month Momentum measures the total return of the stock from 12-month ago to 1-month ago. View historical data on White Mountains Insurance Group and its competitors. For the Insurance industry, the median 12-1 Month Momentum % is 7.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. White Mountains Insurance Group's current 12-1 Month Momentum % is 23.74%. 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 $2,427.80, compared to a current price of $2,149.44 — trading 11.5% below its estimated fair value. The current 12-1 Month Momentum % is 23.74% and 204.7% above the Insurance industry median of 7.79. White Mountains Insurance Group's overall GF Score™ is 75/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 12-1 Month Momentum % calculated?
12-1 Month Momentum % is calculated from a company's financial statements. For White Mountains Insurance Group (WTM), the current 12-1 Month Momentum % is 23.74% as of Aug. 09, 2026. 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 $2,149.44 is trading 11.5% below its estimated GF Value™ of $2,427.80.
GuruFocus considers White Mountains Insurance Group to be Modestly Undervalued.
Key valuation signals for WTM:
12-1 Month Momentum %: 23.74%
GF Value™: $2,427.80 vs. price of $2,149.44 (11.5% below fair value)
Industry Position: 204.7% above the Insurance median (#199 of 587)
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.
75GF Score
Get the complete analysis for WTM
12-1 Month Momentum % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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