White Mountains Insurance Group Ltd

NYSE:WTM USA Insurance - Property & Casualty
Market Cap
$5.47 Billion
Market Cap Rank
#2685 Global
#1860 in USA
Share Price
$2206.81
Change (1 day)
+0.32%
52-Week Range
$1650.50 - $2244.14
All Time High
$2244.14
About

White Mountains Insurance Group, Ltd., through its subsidiaries, engages in the provision of insurance and other financial services in the United States. It operates through four segments: Ark/WM Outrigger, HG Global, Kudu, and Bamboo. The Ark/WM Outrigger segment offers insurance and reinsurance products, including property, specialty, marine and energy, casualty, and accident and health. The HG… Read more

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

White Mountains Insurance Group Ltd (NYSE:WTM) has a market capitalization of $5.47 Billion ($5.47 Billion) as of March 19, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #2685 globally and #1860 in its home market, demonstrating a 2.71% increase 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 $2206.81 by its total outstanding shares 2479677 (2.48 Million).

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 $1.79 Billion to $5.47 Billion (10.82% CAGR).

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.

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:
0.31x
Higher than industry average

Latest Price to Earnings (P/E) Ratio

4.66x

White Mountains Insurance Group Ltd's market cap is 4.66 times its annual earnings

Industry average:
5.76x
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 $2.06 Billion $157.70 Million $401.80 Million 13.04x 5.12x
2017 $2.10 Billion $373.80 Million $627.20 Million 5.61x 3.34x
2018 $2.12 Billion $369.10 Million -$141.20 Million 5.73x 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 4.42x
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 20.93x
2025 $5.15 Billion $2.71 Billion $1.11 Billion 1.90x 4.66x

Competitor Companies of WTM by Market Capitalization

Companies near White Mountains Insurance Group Ltd in the global market cap rankings as of March 19, 2026.

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

  • Insurance Australia Group Ltd (AU:IAGPF): Ranked #127 globally with a market cap of $141.31 Billion USD ( AU$228.22 Billion AUD).
  • Progressive Corp (NYSE:PGR): Ranked #156 globally with a market cap of $119.00 Billion USD.
  • Chubb Ltd (NYSE:CB): Ranked #161 globally with a market cap of $117.14 Billion USD.
  • The Travelers Companies Inc (NYSE:TRV): Ranked #331 globally with a market cap of $65.63 Billion USD.

Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#127 Insurance Australia Group Ltd AU:IAGPF $141.31 Billion AU$104.51
#156 Progressive Corp NYSE:PGR $119.00 Billion $203.79
#161 Chubb Ltd NYSE:CB $117.14 Billion $330.87
#331 The Travelers Companies Inc NYSE:TRV $65.63 Billion $306.33

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 $1.79 Billion to $ 5.47 Billion, with a yearly change of 10.82%.

Year Market Cap Change (%)
2026 $5.47 Billion +6.20%
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 $2.12 Billion +0.88%
2017 $2.10 Billion +1.93%
2016 $2.06 Billion +15.17%
2015 $1.79 Billion --

End of Day Market Cap According to Different Sources

On Mar 18th, 2026 the market cap of White Mountains Insurance Group Ltd was reported to be:

Source Market Cap
Yahoo Finance $5.47 Billion USD
MoneyControl $5.47 Billion USD
MarketWatch $5.47 Billion USD
marketcap.company $5.47 Billion USD
Reuters $5.47 Billion USD

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