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

Ametek is the larger business by last-quarter revenue ($2.0B vs $1.6B, roughly 1.2× WHITE MOUNTAINS INSURANCE GROUP LTD). WHITE MOUNTAINS INSURANCE GROUP LTD runs the higher net margin — 52.1% vs 19.9%, a 32.2% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 13.4%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 7.3%).

AMETEK, Inc. is an American multinational conglomerate and global designer and manufacturer of electronic instruments and electromechanical devices with headquarters in the United States and over 150 sites worldwide.

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.

AME vs WTM — Head-to-Head

Bigger by revenue
AME
AME
1.2× larger
AME
$2.0B
$1.6B
WTM
Growing faster (revenue YoY)
WTM
WTM
+334.5% gap
WTM
348.0%
13.4%
AME
Higher net margin
WTM
WTM
32.2% more per $
WTM
52.1%
19.9%
AME
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
7.3%
AME

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AME
AME
WTM
WTM
Revenue
$2.0B
$1.6B
Net Profit
$398.6M
$835.8M
Gross Margin
36.0%
97.1%
Operating Margin
25.3%
56.2%
Net Margin
19.9%
52.1%
Revenue YoY
13.4%
348.0%
Net Profit YoY
2.9%
741.0%
EPS (diluted)
$1.73
$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
AME
AME
WTM
WTM
Q4 25
$2.0B
$1.6B
Q3 25
$1.9B
$864.2M
Q2 25
$1.8B
$689.2M
Q1 25
$1.7B
$577.8M
Q4 24
$1.8B
$358.0M
Q3 24
$1.7B
$839.1M
Q2 24
$1.7B
$395.4M
Q1 24
$1.7B
$647.3M
Net Profit
AME
AME
WTM
WTM
Q4 25
$398.6M
$835.8M
Q3 25
$371.4M
$113.8M
Q2 25
$358.4M
$122.9M
Q1 25
$351.8M
$33.9M
Q4 24
$387.3M
$-130.4M
Q3 24
$340.2M
$179.0M
Q2 24
$337.7M
$-54.6M
Q1 24
$310.9M
$236.4M
Gross Margin
AME
AME
WTM
WTM
Q4 25
36.0%
97.1%
Q3 25
36.3%
93.6%
Q2 25
35.8%
93.8%
Q1 25
36.1%
98.7%
Q4 24
36.6%
97.9%
Q3 24
36.0%
99.1%
Q2 24
36.0%
98.2%
Q1 24
34.1%
98.8%
Operating Margin
AME
AME
WTM
WTM
Q4 25
25.3%
56.2%
Q3 25
25.8%
20.7%
Q2 25
26.0%
25.6%
Q1 25
26.3%
12.5%
Q4 24
26.6%
-33.7%
Q3 24
26.1%
28.5%
Q2 24
25.8%
-8.8%
Q1 24
24.0%
35.9%
Net Margin
AME
AME
WTM
WTM
Q4 25
19.9%
52.1%
Q3 25
19.6%
13.2%
Q2 25
20.2%
17.8%
Q1 25
20.3%
5.9%
Q4 24
22.0%
-36.4%
Q3 24
19.9%
21.3%
Q2 24
19.5%
-13.8%
Q1 24
17.9%
36.5%
EPS (diluted)
AME
AME
WTM
WTM
Q4 25
$1.73
$325.02
Q3 25
$1.60
$44.18
Q2 25
$1.55
$47.75
Q1 25
$1.52
$13.19
Q4 24
$1.67
$-50.98
Q3 24
$1.47
$69.68
Q2 24
$1.45
$-21.24
Q1 24
$1.34
$92.33

Balance Sheet & Financial Strength

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

Metric
AME
AME
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
$458.0M
Total DebtLower is stronger
$2.3B
$837.0M
Stockholders' EquityBook value
$10.6B
$5.4B
Total Assets
$16.1B
$12.3B
Debt / EquityLower = less leverage
0.21×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AME
AME
WTM
WTM
Q4 25
$458.0M
Q3 25
$439.2M
Q2 25
$619.7M
Q1 25
$399.0M
Q4 24
$374.0M
Q3 24
$396.3M
Q2 24
$396.6M
Q1 24
$373.8M
Total Debt
AME
AME
WTM
WTM
Q4 25
$2.3B
$837.0M
Q3 25
$870.4M
Q2 25
$694.6M
Q1 25
$676.1M
Q4 24
$2.1B
$562.5M
Q3 24
$544.9M
Q2 24
$530.2M
Q1 24
$532.1M
Stockholders' Equity
AME
AME
WTM
WTM
Q4 25
$10.6B
$5.4B
Q3 25
$10.5B
$4.8B
Q2 25
$10.4B
$4.6B
Q1 25
$10.0B
$4.5B
Q4 24
$9.7B
$4.5B
Q3 24
$9.6B
$4.6B
Q2 24
$9.3B
$4.4B
Q1 24
$9.0B
$4.5B
Total Assets
AME
AME
WTM
WTM
Q4 25
$16.1B
$12.3B
Q3 25
$16.2B
$12.3B
Q2 25
$15.3B
$11.8B
Q1 25
$14.9B
$11.0B
Q4 24
$14.6B
$9.9B
Q3 24
$14.8B
$10.3B
Q2 24
$14.8B
$10.2B
Q1 24
$14.9B
$9.6B
Debt / Equity
AME
AME
WTM
WTM
Q4 25
0.21×
0.15×
Q3 25
0.18×
Q2 25
0.15×
Q1 25
0.15×
Q4 24
0.22×
0.13×
Q3 24
0.12×
Q2 24
0.12×
Q1 24
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
AME
AME
WTM
WTM
Operating Cash FlowLast quarter
$584.3M
$53.9M
Free Cash FlowOCF − Capex
$527.3M
FCF MarginFCF / Revenue
26.4%
Capex IntensityCapex / Revenue
2.9%
Cash ConversionOCF / Net Profit
1.47×
0.06×
TTM Free Cash FlowTrailing 4 quarters
$1.7B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AME
AME
WTM
WTM
Q4 25
$584.3M
$53.9M
Q3 25
$440.9M
$359.3M
Q2 25
$359.1M
$177.5M
Q1 25
$417.5M
$-40.2M
Q4 24
$550.0M
$64.1M
Q3 24
$487.2M
$269.4M
Q2 24
$381.4M
$216.8M
Q1 24
$410.2M
$36.5M
Free Cash Flow
AME
AME
WTM
WTM
Q4 25
$527.3M
Q3 25
$420.0M
Q2 25
$329.8M
Q1 25
$394.5M
Q4 24
$498.3M
Q3 24
$460.9M
Q2 24
$360.0M
Q1 24
$382.6M
FCF Margin
AME
AME
WTM
WTM
Q4 25
26.4%
Q3 25
22.2%
Q2 25
18.5%
Q1 25
22.8%
Q4 24
28.3%
Q3 24
27.0%
Q2 24
20.8%
Q1 24
22.0%
Capex Intensity
AME
AME
WTM
WTM
Q4 25
2.9%
Q3 25
1.1%
Q2 25
1.6%
Q1 25
1.3%
Q4 24
2.9%
Q3 24
1.5%
Q2 24
1.2%
Q1 24
1.6%
Cash Conversion
AME
AME
WTM
WTM
Q4 25
1.47×
0.06×
Q3 25
1.19×
3.16×
Q2 25
1.00×
1.44×
Q1 25
1.19×
-1.19×
Q4 24
1.42×
Q3 24
1.43×
1.51×
Q2 24
1.13×
Q1 24
1.32×
0.15×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AME
AME

Transferred At Point In Time$1.1B54%
Electronic Instruments Group$620.1M31%
Transferred Over Time$294.6M15%

WTM
WTM

Segment breakdown not available.

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