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Side-by-side financial comparison of IES Holdings, Inc. (IESC) 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 $871.0M, roughly 1.8× IES Holdings, Inc.). WHITE MOUNTAINS INSURANCE GROUP LTD runs the higher net margin — 52.1% vs 10.5%, a 41.6% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 16.2%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 11.1%).

IES Holdings, Inc., formerly known as Integrated Electrical Services, Inc., designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing, and commercial and industrial facilities.

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.

IESC vs WTM — Head-to-Head

Bigger by revenue
WTM
WTM
1.8× larger
WTM
$1.6B
$871.0M
IESC
Growing faster (revenue YoY)
WTM
WTM
+331.8% gap
WTM
348.0%
16.2%
IESC
Higher net margin
WTM
WTM
41.6% more per $
WTM
52.1%
10.5%
IESC
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
11.1%
IESC

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
IESC
IESC
WTM
WTM
Revenue
$871.0M
$1.6B
Net Profit
$91.8M
$835.8M
Gross Margin
25.3%
97.1%
Operating Margin
11.2%
56.2%
Net Margin
10.5%
52.1%
Revenue YoY
16.2%
348.0%
Net Profit YoY
59.1%
741.0%
EPS (diluted)
$4.51
$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
IESC
IESC
WTM
WTM
Q4 25
$871.0M
$1.6B
Q3 25
$897.8M
$864.2M
Q2 25
$890.2M
$689.2M
Q1 25
$834.0M
$577.8M
Q4 24
$749.5M
$358.0M
Q3 24
$775.8M
$839.1M
Q2 24
$768.4M
$395.4M
Q1 24
$705.7M
$647.3M
Net Profit
IESC
IESC
WTM
WTM
Q4 25
$91.8M
$835.8M
Q3 25
$102.3M
$113.8M
Q2 25
$79.3M
$122.9M
Q1 25
$72.6M
$33.9M
Q4 24
$57.7M
$-130.4M
Q3 24
$65.5M
$179.0M
Q2 24
$66.6M
$-54.6M
Q1 24
$56.8M
$236.4M
Gross Margin
IESC
IESC
WTM
WTM
Q4 25
25.3%
97.1%
Q3 25
26.0%
93.6%
Q2 25
26.9%
93.8%
Q1 25
25.0%
98.7%
Q4 24
23.8%
97.9%
Q3 24
24.0%
99.1%
Q2 24
25.3%
98.2%
Q1 24
24.3%
98.8%
Operating Margin
IESC
IESC
WTM
WTM
Q4 25
11.2%
56.2%
Q3 25
11.6%
20.7%
Q2 25
12.6%
25.6%
Q1 25
11.1%
12.5%
Q4 24
10.0%
-33.7%
Q3 24
9.7%
28.5%
Q2 24
11.7%
-8.8%
Q1 24
11.0%
35.9%
Net Margin
IESC
IESC
WTM
WTM
Q4 25
10.5%
52.1%
Q3 25
11.4%
13.2%
Q2 25
8.9%
17.8%
Q1 25
8.7%
5.9%
Q4 24
7.7%
-36.4%
Q3 24
8.4%
21.3%
Q2 24
8.7%
-13.8%
Q1 24
8.0%
36.5%
EPS (diluted)
IESC
IESC
WTM
WTM
Q4 25
$4.51
$325.02
Q3 25
$4.99
$44.18
Q2 25
$3.81
$47.75
Q1 25
$3.50
$13.19
Q4 24
$2.72
$-50.98
Q3 24
$3.06
$69.68
Q2 24
$2.67
$-21.24
Q1 24
$2.29
$92.33

Balance Sheet & Financial Strength

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

Metric
IESC
IESC
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
$258.7M
Total DebtLower is stronger
$837.0M
Stockholders' EquityBook value
$961.1M
$5.4B
Total Assets
$1.7B
$12.3B
Debt / EquityLower = less leverage
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IESC
IESC
WTM
WTM
Q4 25
$258.7M
Q3 25
$231.8M
Q2 25
$168.3M
Q1 25
$88.3M
Q4 24
$112.0M
Q3 24
$135.8M
Q2 24
$44.9M
Q1 24
$106.0M
Total Debt
IESC
IESC
WTM
WTM
Q4 25
$837.0M
Q3 25
$870.4M
Q2 25
$694.6M
Q1 25
$676.1M
Q4 24
$562.5M
Q3 24
$544.9M
Q2 24
$530.2M
Q1 24
$532.1M
Stockholders' Equity
IESC
IESC
WTM
WTM
Q4 25
$961.1M
$5.4B
Q3 25
$884.0M
$4.8B
Q2 25
$781.4M
$4.6B
Q1 25
$705.8M
$4.5B
Q4 24
$652.4M
$4.5B
Q3 24
$611.1M
$4.6B
Q2 24
$567.5M
$4.4B
Q1 24
$534.8M
$4.5B
Total Assets
IESC
IESC
WTM
WTM
Q4 25
$1.7B
$12.3B
Q3 25
$1.6B
$12.3B
Q2 25
$1.5B
$11.8B
Q1 25
$1.4B
$11.0B
Q4 24
$1.3B
$9.9B
Q3 24
$1.2B
$10.3B
Q2 24
$1.2B
$10.2B
Q1 24
$1.1B
$9.6B
Debt / Equity
IESC
IESC
WTM
WTM
Q4 25
0.15×
Q3 25
0.18×
Q2 25
0.15×
Q1 25
0.15×
Q4 24
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
IESC
IESC
WTM
WTM
Operating Cash FlowLast quarter
$27.7M
$53.9M
Free Cash FlowOCF − Capex
$-18.9M
FCF MarginFCF / Revenue
-2.2%
Capex IntensityCapex / Revenue
5.3%
Cash ConversionOCF / Net Profit
0.30×
0.06×
TTM Free Cash FlowTrailing 4 quarters
$175.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IESC
IESC
WTM
WTM
Q4 25
$27.7M
$53.9M
Q3 25
$132.0M
$359.3M
Q2 25
$92.0M
$177.5M
Q1 25
$24.8M
$-40.2M
Q4 24
$37.3M
$64.1M
Q3 24
$92.8M
$269.4M
Q2 24
$82.9M
$216.8M
Q1 24
$33.7M
$36.5M
Free Cash Flow
IESC
IESC
WTM
WTM
Q4 25
$-18.9M
Q3 25
$112.0M
Q2 25
$74.8M
Q1 25
$7.9M
Q4 24
$24.1M
Q3 24
$78.5M
Q2 24
$65.4M
Q1 24
$26.9M
FCF Margin
IESC
IESC
WTM
WTM
Q4 25
-2.2%
Q3 25
12.5%
Q2 25
8.4%
Q1 25
0.9%
Q4 24
3.2%
Q3 24
10.1%
Q2 24
8.5%
Q1 24
3.8%
Capex Intensity
IESC
IESC
WTM
WTM
Q4 25
5.3%
Q3 25
2.2%
Q2 25
1.9%
Q1 25
2.0%
Q4 24
1.8%
Q3 24
1.8%
Q2 24
2.3%
Q1 24
1.0%
Cash Conversion
IESC
IESC
WTM
WTM
Q4 25
0.30×
0.06×
Q3 25
1.29×
3.16×
Q2 25
1.16×
1.44×
Q1 25
0.34×
-1.19×
Q4 24
0.65×
Q3 24
1.42×
1.51×
Q2 24
1.24×
Q1 24
0.59×
0.15×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IESC
IESC

Communications$351.9M40%
Single Family Electrical Contracts$137.0M16%
Custom Engineered Solutions$116.0M13%
Commercialand Industrial$94.8M11%
Single Family Contracts Plumbing HVAC$82.9M10%
Multi Familyand Other$64.2M7%
Industrial Services$24.2M3%

WTM
WTM

Segment breakdown not available.

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