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Side-by-side financial comparison of SELECTIVE INSURANCE GROUP INC (SIGI) and WHITE MOUNTAINS INSURANCE GROUP LTD (WTM). Click either name above to swap in a different company.

WHITE MOUNTAINS INSURANCE GROUP LTD is the larger business by last-quarter revenue ($1.6B vs $1.4B, roughly 1.2× SELECTIVE INSURANCE GROUP INC). WHITE MOUNTAINS INSURANCE GROUP LTD runs the higher net margin — 52.1% vs 7.2%, a 44.9% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 5.7%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 6.6%).

Selective Insurance Group Inc. is a U.S.-based insurance holding company that provides a comprehensive portfolio of property and casualty insurance products, including personal auto, home insurance, commercial property, liability, and workers' compensation coverage. It primarily serves small and medium-sized businesses, individual consumers, and nonprofits across the U.S., distributing offerings via a network of independent insurance agents.

White Mountains Insurance Group is a diversified insurance and related financial services holding company based in Hamilton, Bermuda. Redomiciled from Delaware, United States, on October 25, 1999, the company conducts most of its business through its insurance subsidiaries and other affiliates.

SIGI vs WTM — Head-to-Head

Bigger by revenue
WTM
WTM
1.2× larger
WTM
$1.6B
$1.4B
SIGI
Growing faster (revenue YoY)
WTM
WTM
+342.3% gap
WTM
348.0%
5.7%
SIGI
Higher net margin
WTM
WTM
44.9% more per $
WTM
52.1%
7.2%
SIGI
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
6.6%
SIGI

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
SIGI
SIGI
WTM
WTM
Revenue
$1.4B
$1.6B
Net Profit
$97.7M
$835.8M
Gross Margin
97.1%
Operating Margin
56.2%
Net Margin
7.2%
52.1%
Revenue YoY
5.7%
348.0%
Net Profit YoY
-37.0%
741.0%
EPS (diluted)
$1.58
$325.02

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
SIGI
SIGI
WTM
WTM
Q1 26
$1.4B
Q4 25
$1.4B
$1.6B
Q3 25
$1.4B
$864.2M
Q2 25
$1.3B
$689.2M
Q1 25
$1.3B
$577.8M
Q4 24
$1.3B
$358.0M
Q3 24
$1.2B
$839.1M
Q2 24
$1.2B
$395.4M
Net Profit
SIGI
SIGI
WTM
WTM
Q1 26
$97.7M
Q4 25
$155.2M
$835.8M
Q3 25
$115.3M
$113.8M
Q2 25
$85.9M
$122.9M
Q1 25
$109.9M
$33.9M
Q4 24
$95.5M
$-130.4M
Q3 24
$92.3M
$179.0M
Q2 24
$-63.3M
$-54.6M
Gross Margin
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
97.1%
Q3 25
93.6%
Q2 25
93.8%
Q1 25
98.7%
Q4 24
97.9%
Q3 24
99.1%
Q2 24
98.2%
Operating Margin
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
14.4%
56.2%
Q3 25
10.7%
20.7%
Q2 25
8.2%
25.6%
Q1 25
10.8%
12.5%
Q4 24
9.5%
-33.7%
Q3 24
9.4%
28.5%
Q2 24
-6.7%
-8.8%
Net Margin
SIGI
SIGI
WTM
WTM
Q1 26
7.2%
Q4 25
11.4%
52.1%
Q3 25
8.5%
13.2%
Q2 25
6.5%
17.8%
Q1 25
8.6%
5.9%
Q4 24
7.6%
-36.4%
Q3 24
7.4%
21.3%
Q2 24
-5.3%
-13.8%
EPS (diluted)
SIGI
SIGI
WTM
WTM
Q1 26
$1.58
Q4 25
$2.52
$325.02
Q3 25
$1.85
$44.18
Q2 25
$1.36
$47.75
Q1 25
$1.76
$13.19
Q4 24
$1.53
$-50.98
Q3 24
$1.47
$69.68
Q2 24
$-1.08
$-21.24

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
SIGI
SIGI
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
$451.8M
Total DebtLower is stronger
$901.4M
$837.0M
Stockholders' EquityBook value
$3.6B
$5.4B
Total Assets
$15.3B
$12.3B
Debt / EquityLower = less leverage
0.25×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SIGI
SIGI
WTM
WTM
Q1 26
$451.8M
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Total Debt
SIGI
SIGI
WTM
WTM
Q1 26
$901.4M
Q4 25
$837.0M
Q3 25
$870.4M
Q2 25
$694.6M
Q1 25
$676.1M
Q4 24
$507.9M
$562.5M
Q3 24
$508.2M
$544.9M
Q2 24
$508.8M
$530.2M
Stockholders' Equity
SIGI
SIGI
WTM
WTM
Q1 26
$3.6B
Q4 25
$3.6B
$5.4B
Q3 25
$3.5B
$4.8B
Q2 25
$3.4B
$4.6B
Q1 25
$3.3B
$4.5B
Q4 24
$3.1B
$4.5B
Q3 24
$3.2B
$4.6B
Q2 24
$2.9B
$4.4B
Total Assets
SIGI
SIGI
WTM
WTM
Q1 26
$15.3B
Q4 25
$15.2B
$12.3B
Q3 25
$15.0B
$12.3B
Q2 25
$14.5B
$11.8B
Q1 25
$14.2B
$11.0B
Q4 24
$13.5B
$9.9B
Q3 24
$13.5B
$10.3B
Q2 24
$12.6B
$10.2B
Debt / Equity
SIGI
SIGI
WTM
WTM
Q1 26
0.25×
Q4 25
0.15×
Q3 25
0.18×
Q2 25
0.15×
Q1 25
0.15×
Q4 24
0.16×
0.13×
Q3 24
0.16×
0.12×
Q2 24
0.17×
0.12×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
SIGI
SIGI
WTM
WTM
Operating Cash FlowLast quarter
$53.9M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
0.06×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
$376.3M
$53.9M
Q3 25
$405.8M
$359.3M
Q2 25
$166.9M
$177.5M
Q1 25
$284.0M
$-40.2M
Q4 24
$332.2M
$64.1M
Q3 24
$387.4M
$269.4M
Q2 24
$266.1M
$216.8M
Free Cash Flow
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
$366.3M
Q3 25
$397.3M
Q2 25
$159.7M
Q1 25
$271.0M
Q4 24
$324.7M
Q3 24
$378.0M
Q2 24
$258.4M
FCF Margin
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
26.8%
Q3 25
29.2%
Q2 25
12.0%
Q1 25
21.1%
Q4 24
25.8%
Q3 24
30.4%
Q2 24
21.6%
Capex Intensity
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
0.7%
Q3 25
0.6%
Q2 25
0.5%
Q1 25
1.0%
Q4 24
0.6%
Q3 24
0.8%
Q2 24
0.6%
Cash Conversion
SIGI
SIGI
WTM
WTM
Q1 26
Q4 25
2.42×
0.06×
Q3 25
3.52×
3.16×
Q2 25
1.94×
1.44×
Q1 25
2.58×
-1.19×
Q4 24
3.48×
Q3 24
4.20×
1.51×
Q2 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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