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

NiSource 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 13.7%, a 38.4% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 22.5%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 7.2%).

NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is the sole Indiana-based utility company.

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.

NI vs WTM — Head-to-Head

Bigger by revenue
NI
NI
1.2× larger
NI
$1.9B
$1.6B
WTM
Growing faster (revenue YoY)
WTM
WTM
+325.5% gap
WTM
348.0%
22.5%
NI
Higher net margin
WTM
WTM
38.4% more per $
WTM
52.1%
13.7%
NI
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
7.2%
NI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
NI
NI
WTM
WTM
Revenue
$1.9B
$1.6B
Net Profit
$257.8M
$835.8M
Gross Margin
97.1%
Operating Margin
27.3%
56.2%
Net Margin
13.7%
52.1%
Revenue YoY
22.5%
348.0%
Net Profit YoY
15.1%
741.0%
EPS (diluted)
$0.53
$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
NI
NI
WTM
WTM
Q4 25
$1.9B
$1.6B
Q3 25
$1.2B
$864.2M
Q2 25
$1.2B
$689.2M
Q1 25
$2.1B
$577.8M
Q4 24
$1.5B
$358.0M
Q3 24
$1.0B
$839.1M
Q2 24
$1.1B
$395.4M
Q1 24
$1.6B
$647.3M
Net Profit
NI
NI
WTM
WTM
Q4 25
$257.8M
$835.8M
Q3 25
$94.7M
$113.8M
Q2 25
$102.2M
$122.9M
Q1 25
$474.8M
$33.9M
Q4 24
$223.9M
$-130.4M
Q3 24
$85.7M
$179.0M
Q2 24
$85.8M
$-54.6M
Q1 24
$365.0M
$236.4M
Gross Margin
NI
NI
WTM
WTM
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%
Q1 24
98.8%
Operating Margin
NI
NI
WTM
WTM
Q4 25
27.3%
56.2%
Q3 25
24.0%
20.7%
Q2 25
21.1%
25.6%
Q1 25
35.3%
12.5%
Q4 24
27.1%
-33.7%
Q3 24
20.9%
28.5%
Q2 24
22.5%
-8.8%
Q1 24
35.5%
35.9%
Net Margin
NI
NI
WTM
WTM
Q4 25
13.7%
52.1%
Q3 25
7.6%
13.2%
Q2 25
8.2%
17.8%
Q1 25
22.1%
5.9%
Q4 24
14.5%
-36.4%
Q3 24
8.2%
21.3%
Q2 24
8.1%
-13.8%
Q1 24
22.2%
36.5%
EPS (diluted)
NI
NI
WTM
WTM
Q4 25
$0.53
$325.02
Q3 25
$0.20
$44.18
Q2 25
$0.22
$47.75
Q1 25
$1.00
$13.19
Q4 24
$0.47
$-50.98
Q3 24
$0.19
$69.68
Q2 24
$0.19
$-21.24
Q1 24
$0.77
$92.33

Balance Sheet & Financial Strength

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

Metric
NI
NI
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
$110.1M
Total DebtLower is stronger
$15.5B
$837.0M
Stockholders' EquityBook value
$9.5B
$5.4B
Total Assets
$35.9B
$12.3B
Debt / EquityLower = less leverage
1.64×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NI
NI
WTM
WTM
Q4 25
$110.1M
Q3 25
$95.0M
Q2 25
$335.4M
Q1 25
$259.4M
Q4 24
$156.6M
Q3 24
$126.2M
Q2 24
$101.2M
Q1 24
$102.2M
Total Debt
NI
NI
WTM
WTM
Q4 25
$15.5B
$837.0M
Q3 25
$14.5B
$870.4M
Q2 25
$14.5B
$694.6M
Q1 25
$12.8B
$676.1M
Q4 24
$12.1B
$562.5M
Q3 24
$12.1B
$544.9M
Q2 24
$12.8B
$530.2M
Q1 24
$11.7B
$532.1M
Stockholders' Equity
NI
NI
WTM
WTM
Q4 25
$9.5B
$5.4B
Q3 25
$9.1B
$4.8B
Q2 25
$8.9B
$4.6B
Q1 25
$8.9B
$4.5B
Q4 24
$8.7B
$4.5B
Q3 24
$8.3B
$4.6B
Q2 24
$7.9B
$4.4B
Q1 24
$7.9B
$4.5B
Total Assets
NI
NI
WTM
WTM
Q4 25
$35.9B
$12.3B
Q3 25
$34.4B
$12.3B
Q2 25
$34.0B
$11.8B
Q1 25
$33.1B
$11.0B
Q4 24
$31.8B
$9.9B
Q3 24
$30.8B
$10.3B
Q2 24
$29.9B
$10.2B
Q1 24
$29.3B
$9.6B
Debt / Equity
NI
NI
WTM
WTM
Q4 25
1.64×
0.15×
Q3 25
1.59×
0.18×
Q2 25
1.63×
0.15×
Q1 25
1.44×
0.15×
Q4 24
1.39×
0.13×
Q3 24
1.45×
0.12×
Q2 24
1.63×
0.12×
Q1 24
1.48×
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
NI
NI
WTM
WTM
Operating Cash FlowLast quarter
$712.6M
$53.9M
Free Cash FlowOCF − Capex
$-133.7M
FCF MarginFCF / Revenue
-7.1%
Capex IntensityCapex / Revenue
44.9%
Cash ConversionOCF / Net Profit
2.76×
0.06×
TTM Free Cash FlowTrailing 4 quarters
$-420.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NI
NI
WTM
WTM
Q4 25
$712.6M
$53.9M
Q3 25
$467.9M
$359.3M
Q2 25
$495.4M
$177.5M
Q1 25
$686.4M
$-40.2M
Q4 24
$539.8M
$64.1M
Q3 24
$340.0M
$269.4M
Q2 24
$445.5M
$216.8M
Q1 24
$456.2M
$36.5M
Free Cash Flow
NI
NI
WTM
WTM
Q4 25
$-133.7M
Q3 25
$-172.6M
Q2 25
$-162.8M
Q1 25
$49.1M
Q4 24
$-220.2M
Q3 24
$-294.7M
Q2 24
$-184.3M
Q1 24
$-133.3M
FCF Margin
NI
NI
WTM
WTM
Q4 25
-7.1%
Q3 25
-13.9%
Q2 25
-13.1%
Q1 25
2.3%
Q4 24
-14.3%
Q3 24
-28.2%
Q2 24
-17.5%
Q1 24
-8.1%
Capex Intensity
NI
NI
WTM
WTM
Q4 25
44.9%
Q3 25
51.6%
Q2 25
52.8%
Q1 25
29.6%
Q4 24
49.4%
Q3 24
60.7%
Q2 24
59.7%
Q1 24
35.9%
Cash Conversion
NI
NI
WTM
WTM
Q4 25
2.76×
0.06×
Q3 25
4.94×
3.16×
Q2 25
4.85×
1.44×
Q1 25
1.45×
-1.19×
Q4 24
2.41×
Q3 24
3.97×
1.51×
Q2 24
5.19×
Q1 24
1.25×
0.15×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NI
NI

Residential$703.6M37%
Ni Source Electric Generation And Power Delivery$525.6M28%
NIPSCO Gas Distribution$348.1M18%
Commercial$235.9M13%
Industrial$45.9M2%
Offsystem$16.9M1%
Misc.$9.6M1%
Related Party$3.3M0%

WTM
WTM

Segment breakdown not available.

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