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

SOMNIGROUP INTERNATIONAL INC. is the larger business by last-quarter revenue ($1.9B vs $1.6B, roughly 1.2× WHITE MOUNTAINS INSURANCE GROUP LTD). WHITE MOUNTAINS INSURANCE GROUP LTD runs the higher net margin — 52.1% vs 7.5%, a 44.6% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 54.7%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 25.3%).

Somnigroup International Inc. is an American manufacturer of mattresses and bedding products.

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.

SGI vs WTM — Head-to-Head

Bigger by revenue
SGI
SGI
1.2× larger
SGI
$1.9B
$1.6B
WTM
Growing faster (revenue YoY)
WTM
WTM
+293.3% gap
WTM
348.0%
54.7%
SGI
Higher net margin
WTM
WTM
44.6% more per $
WTM
52.1%
7.5%
SGI
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
25.3%
SGI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
SGI
SGI
WTM
WTM
Revenue
$1.9B
$1.6B
Net Profit
$140.8M
$835.8M
Gross Margin
44.0%
97.1%
Operating Margin
13.2%
56.2%
Net Margin
7.5%
52.1%
Revenue YoY
54.7%
348.0%
Net Profit YoY
95.8%
741.0%
EPS (diluted)
$0.71
$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
SGI
SGI
WTM
WTM
Q4 25
$1.9B
$1.6B
Q3 25
$2.1B
$864.2M
Q2 25
$1.9B
$689.2M
Q1 25
$1.6B
$577.8M
Q4 24
$1.2B
$358.0M
Q3 24
$1.3B
$839.1M
Q2 24
$1.2B
$395.4M
Q1 24
$1.2B
$647.3M
Net Profit
SGI
SGI
WTM
WTM
Q4 25
$140.8M
$835.8M
Q3 25
$177.4M
$113.8M
Q2 25
$99.0M
$122.9M
Q1 25
$-33.1M
$33.9M
Q4 24
$71.9M
$-130.4M
Q3 24
$130.0M
$179.0M
Q2 24
$106.1M
$-54.6M
Q1 24
$76.3M
$236.4M
Gross Margin
SGI
SGI
WTM
WTM
Q4 25
44.0%
97.1%
Q3 25
44.9%
93.6%
Q2 25
44.0%
93.8%
Q1 25
36.2%
98.7%
Q4 24
43.3%
97.9%
Q3 24
45.4%
99.1%
Q2 24
44.9%
98.2%
Q1 24
43.1%
98.8%
Operating Margin
SGI
SGI
WTM
WTM
Q4 25
13.2%
56.2%
Q3 25
14.8%
20.7%
Q2 25
9.6%
25.6%
Q1 25
0.8%
12.5%
Q4 24
10.6%
-33.7%
Q3 24
15.5%
28.5%
Q2 24
14.0%
-8.8%
Q1 24
11.1%
35.9%
Net Margin
SGI
SGI
WTM
WTM
Q4 25
7.5%
52.1%
Q3 25
8.4%
13.2%
Q2 25
5.3%
17.8%
Q1 25
-2.1%
5.9%
Q4 24
6.0%
-36.4%
Q3 24
10.0%
21.3%
Q2 24
8.6%
-13.8%
Q1 24
6.4%
36.5%
EPS (diluted)
SGI
SGI
WTM
WTM
Q4 25
$0.71
$325.02
Q3 25
$0.83
$44.18
Q2 25
$0.47
$47.75
Q1 25
$-0.17
$13.19
Q4 24
$0.40
$-50.98
Q3 24
$0.73
$69.68
Q2 24
$0.60
$-21.24
Q1 24
$0.43
$92.33

Balance Sheet & Financial Strength

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

Metric
SGI
SGI
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
Total DebtLower is stronger
$4.6B
$837.0M
Stockholders' EquityBook value
$3.1B
$5.4B
Total Assets
$11.6B
$12.3B
Debt / EquityLower = less leverage
1.47×
0.15×

8-quarter trend — quarters aligned by calendar period.

Total Debt
SGI
SGI
WTM
WTM
Q4 25
$4.6B
$837.0M
Q3 25
$4.5B
$870.4M
Q2 25
$4.8B
$694.6M
Q1 25
$4.9B
$676.1M
Q4 24
$3.7B
$562.5M
Q3 24
$2.2B
$544.9M
Q2 24
$2.4B
$530.2M
Q1 24
$2.5B
$532.1M
Stockholders' Equity
SGI
SGI
WTM
WTM
Q4 25
$3.1B
$5.4B
Q3 25
$3.0B
$4.8B
Q2 25
$2.8B
$4.6B
Q1 25
$2.7B
$4.5B
Q4 24
$559.0M
$4.5B
Q3 24
$564.5M
$4.6B
Q2 24
$411.8M
$4.4B
Q1 24
$326.6M
$4.5B
Total Assets
SGI
SGI
WTM
WTM
Q4 25
$11.6B
$12.3B
Q3 25
$11.4B
$12.3B
Q2 25
$11.4B
$11.8B
Q1 25
$11.3B
$11.0B
Q4 24
$6.0B
$9.9B
Q3 24
$4.6B
$10.3B
Q2 24
$4.6B
$10.2B
Q1 24
$4.6B
$9.6B
Debt / Equity
SGI
SGI
WTM
WTM
Q4 25
1.47×
0.15×
Q3 25
1.51×
0.18×
Q2 25
1.69×
0.15×
Q1 25
1.79×
0.15×
Q4 24
6.69×
0.13×
Q3 24
3.95×
0.12×
Q2 24
5.92×
0.12×
Q1 24
7.74×
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
SGI
SGI
WTM
WTM
Operating Cash FlowLast quarter
$99.4M
$53.9M
Free Cash FlowOCF − Capex
$41.1M
FCF MarginFCF / Revenue
2.2%
Capex IntensityCapex / Revenue
3.1%
Cash ConversionOCF / Net Profit
0.71×
0.06×
TTM Free Cash FlowTrailing 4 quarters
$633.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SGI
SGI
WTM
WTM
Q4 25
$99.4M
$53.9M
Q3 25
$408.2M
$359.3M
Q2 25
$186.1M
$177.5M
Q1 25
$106.4M
$-40.2M
Q4 24
$129.1M
$64.1M
Q3 24
$256.6M
$269.4M
Q2 24
$150.6M
$216.8M
Q1 24
$130.2M
$36.5M
Free Cash Flow
SGI
SGI
WTM
WTM
Q4 25
$41.1M
Q3 25
$360.3M
Q2 25
$149.4M
Q1 25
$82.4M
Q4 24
$108.2M
Q3 24
$240.2M
Q2 24
$122.1M
Q1 24
$98.7M
FCF Margin
SGI
SGI
WTM
WTM
Q4 25
2.2%
Q3 25
17.0%
Q2 25
7.9%
Q1 25
5.1%
Q4 24
9.0%
Q3 24
18.5%
Q2 24
9.9%
Q1 24
8.3%
Capex Intensity
SGI
SGI
WTM
WTM
Q4 25
3.1%
Q3 25
2.3%
Q2 25
2.0%
Q1 25
1.5%
Q4 24
1.7%
Q3 24
1.3%
Q2 24
2.3%
Q1 24
2.6%
Cash Conversion
SGI
SGI
WTM
WTM
Q4 25
0.71×
0.06×
Q3 25
2.30×
3.16×
Q2 25
1.88×
1.44×
Q1 25
-1.19×
Q4 24
1.80×
Q3 24
1.97×
1.51×
Q2 24
1.42×
Q1 24
1.71×
0.15×

Financial Flow Comparison

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

Revenue Breakdown by Segment

SGI
SGI

Mattress Firm Segment$892.1M48%
Tempur Sealy North America Segment$620.5M33%
Tempur Sealy International Segment$355.8M19%

WTM
WTM

Segment breakdown not available.

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