White Mountains Insurance Group Ltd (NYSE:WTM) — Market Cap & Net Worth

$4.93 Billion USD  · Rank #3624

Market Cap & Net Worth: White Mountains Insurance Group Ltd (WTM)

White Mountains Insurance Group Ltd (NYSE:WTM) has a market capitalization of $4.93 Billion ($4.93 Billion) as of September 24, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #3624 globally and #1267 in its home market, demonstrating a -0.16% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying White Mountains Insurance Group Ltd's stock price $2053.64 by its total outstanding shares 2476670 (2.48 Million). Also see White Mountains Insurance Group Ltd asset portfolio for a full breakdown of the balance sheet.

White Mountains Insurance Group Ltd Market Cap History: 2015 to 2026

White Mountains Insurance Group Ltd's market capitalization history from 2015 to 2026. Data shows growth from $1.78 Billion to $5.09 Billion (9.55% CAGR). Also see White Mountains Insurance Group Ltd cash flow conversion for how efficiently the company converts equity into cash flow.

White Mountains Insurance Group Ltd Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how White Mountains Insurance Group Ltd's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check current stock price of White Mountains Insurance Group Ltd for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

1.90x

White Mountains Insurance Group Ltd's market cap is 1.90 times its annual revenue

Industry average: 0.44x Higher than industry average

Latest Price to Earnings (P/E) Ratio

4.65x

White Mountains Insurance Group Ltd's market cap is 4.65 times its annual earnings

Industry average: 7.13x Lower than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $2.05 Billion $157.70 Million $401.80 Million 13.03x 5.11x
2017 $2.09 Billion $373.80 Million $627.20 Million 5.60x 3.34x
2018 $2.11 Billion $369.10 Million -$141.20 Million 5.72x N/A
2019 $2.75 Billion $893.40 Million $414.50 Million 3.08x 6.64x
2020 $2.47 Billion $895.60 Million $708.70 Million 2.76x 3.49x
2021 $2.51 Billion $614.40 Million -$275.40 Million 4.08x N/A
2022 $3.50 Billion $1.16 Billion $792.80 Million 3.02x 4.41x
2023 $3.73 Billion $2.17 Billion $509.20 Million 1.72x 7.32x
2024 $4.82 Billion $2.35 Billion $230.40 Million 2.05x 20.91x
2025 $5.15 Billion $2.71 Billion $1.11 Billion 1.90x 4.65x

Competitor Companies of WTM by Market Capitalization

Companies near White Mountains Insurance Group Ltd in the global market cap rankings as of September 24, 2026. Review WTM tangible net worth ratio to assess the quality of the company's equity after excluding intangible assets.

Key companies related to White Mountains Insurance Group Ltd by market ranking:

  • Chubb Ltd (NYSE:CB): Ranked #199 globally with a market cap of $124.22 Billion USD.
  • Progressive Corp (NYSE:PGR): Ranked #207 globally with a market cap of $120.31 Billion USD.
  • The Travelers Companies Inc (NYSE:TRV): Ranked #365 globally with a market cap of $75.51 Billion USD.
  • The Allstate Corporation (NYSE:ALL): Ranked #474 globally with a market cap of $58.03 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#199 Chubb Ltd NYSE:CB $124.22 Billion $335.77
#207 Progressive Corp NYSE:PGR $120.31 Billion $206.94
#365 The Travelers Companies Inc NYSE:TRV $75.51 Billion $362.01
#474 The Allstate Corporation NYSE:ALL $58.03 Billion $229.50

White Mountains Insurance Group Ltd Historical Marketcap From 2015 to 2026

Between 2015 and today, White Mountains Insurance Group Ltd's market cap moved from $1.78 Billion to $ 5.09 Billion, with a yearly change of 9.55%.

Year Market Cap Change (%)
2026 $5.09 Billion -1.17%
2025 $5.15 Billion +6.84%
2024 $4.82 Billion +29.31%
2023 $3.73 Billion +6.49%
2022 $3.50 Billion +39.63%
2021 $2.51 Billion +1.41%
2020 $2.47 Billion -10.19%
2019 $2.75 Billion +30.20%
2018 $2.11 Billion +0.88%
2017 $2.09 Billion +1.93%
2016 $2.05 Billion +15.17%
2015 $1.78 Billion --

End of Day Market Cap According to Different Sources

On Sep 23rd, 2026 the market cap of White Mountains Insurance Group Ltd was reported to be:

Source Market Cap
Yahoo Finance $4.93 Billion USD
MoneyControl $4.93 Billion USD
MarketWatch $4.93 Billion USD
marketcap.company $4.93 Billion USD
Reuters $4.93 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About White Mountains Insurance Group Ltd

NYSE:WTM USA Insurance - Property & Casualty
Market Cap
$5.09 Billion
Market Cap Rank
#3624 Global
#1267 in USA
Share Price
$2053.64
Change (1 day)
-0.16%
52-Week Range
$1650.50 - $2319.41
All Time High
$2319.41
About

White Mountains Insurance Group, Ltd. provides insurance services in the United States, the United Kingdom, Bermuda, and internationally. It operates through Ark/WM Outrigger, HG Global, Kudu, Distinguished, and Other Operations segments. The company offers property insurance and reinsurance; specialty insurance and reinsurance consisting of aviation, contingency, cyber, fine art and specie, mort… Read more