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

Mosaic Company (The) is the larger business by last-quarter revenue ($3.0B vs $1.6B, roughly 1.9× WHITE MOUNTAINS INSURANCE GROUP LTD). WHITE MOUNTAINS INSURANCE GROUP LTD runs the higher net margin — 52.1% vs -17.5%, a 69.6% gap on every dollar of revenue. On growth, WHITE MOUNTAINS INSURANCE GROUP LTD posted the faster year-over-year revenue change (348.0% vs 5.6%). Over the past eight quarters, WHITE MOUNTAINS INSURANCE GROUP LTD's revenue compounded faster (57.4% CAGR vs 5.3%).

The Mosaic Company is an American chemical company based in Tampa, Florida, which mines phosphate, potash, and collects urea for fertilizer, through various international distribution networks, and Mosaic Fertilizantes. It is the largest U.S. producer of potash and phosphate fertilizer.

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.

MOS vs WTM — Head-to-Head

Bigger by revenue
MOS
MOS
1.9× larger
MOS
$3.0B
$1.6B
WTM
Growing faster (revenue YoY)
WTM
WTM
+342.4% gap
WTM
348.0%
5.6%
MOS
Higher net margin
WTM
WTM
69.6% more per $
WTM
52.1%
-17.5%
MOS
Faster 2-yr revenue CAGR
WTM
WTM
Annualised
WTM
57.4%
5.3%
MOS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MOS
MOS
WTM
WTM
Revenue
$3.0B
$1.6B
Net Profit
$-519.5M
$835.8M
Gross Margin
11.5%
97.1%
Operating Margin
-3.4%
56.2%
Net Margin
-17.5%
52.1%
Revenue YoY
5.6%
348.0%
Net Profit YoY
-407.4%
741.0%
EPS (diluted)
$-1.63
$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
MOS
MOS
WTM
WTM
Q4 25
$3.0B
$1.6B
Q3 25
$3.5B
$864.2M
Q2 25
$3.0B
$689.2M
Q1 25
$2.6B
$577.8M
Q4 24
$2.8B
$358.0M
Q3 24
$2.8B
$839.1M
Q2 24
$2.8B
$395.4M
Q1 24
$2.7B
$647.3M
Net Profit
MOS
MOS
WTM
WTM
Q4 25
$-519.5M
$835.8M
Q3 25
$411.4M
$113.8M
Q2 25
$410.7M
$122.9M
Q1 25
$238.1M
$33.9M
Q4 24
$169.0M
$-130.4M
Q3 24
$122.2M
$179.0M
Q2 24
$-161.5M
$-54.6M
Q1 24
$45.2M
$236.4M
Gross Margin
MOS
MOS
WTM
WTM
Q4 25
11.5%
97.1%
Q3 25
16.0%
93.6%
Q2 25
17.3%
93.8%
Q1 25
18.6%
98.7%
Q4 24
10.7%
97.9%
Q3 24
14.8%
99.1%
Q2 24
14.0%
98.2%
Q1 24
14.9%
98.8%
Operating Margin
MOS
MOS
WTM
WTM
Q4 25
-3.4%
56.2%
Q3 25
9.8%
20.7%
Q2 25
8.1%
25.6%
Q1 25
12.9%
12.5%
Q4 24
3.5%
-33.7%
Q3 24
4.1%
28.5%
Q2 24
8.3%
-8.8%
Q1 24
6.5%
35.9%
Net Margin
MOS
MOS
WTM
WTM
Q4 25
-17.5%
52.1%
Q3 25
11.9%
13.2%
Q2 25
13.7%
17.8%
Q1 25
9.1%
5.9%
Q4 24
6.0%
-36.4%
Q3 24
4.3%
21.3%
Q2 24
-5.7%
-13.8%
Q1 24
1.7%
36.5%
EPS (diluted)
MOS
MOS
WTM
WTM
Q4 25
$-1.63
$325.02
Q3 25
$1.29
$44.18
Q2 25
$1.29
$47.75
Q1 25
$0.75
$13.19
Q4 24
$0.53
$-50.98
Q3 24
$0.38
$69.68
Q2 24
$-0.50
$-21.24
Q1 24
$0.14
$92.33

Balance Sheet & Financial Strength

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

Metric
MOS
MOS
WTM
WTM
Cash + ST InvestmentsLiquidity on hand
$276.6M
Total DebtLower is stronger
$4.3B
$837.0M
Stockholders' EquityBook value
$12.1B
$5.4B
Total Assets
$24.5B
$12.3B
Debt / EquityLower = less leverage
0.35×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MOS
MOS
WTM
WTM
Q4 25
$276.6M
Q3 25
$153.3M
Q2 25
$286.2M
Q1 25
$259.2M
Q4 24
$272.8M
Q3 24
$301.6M
Q2 24
$322.0M
Q1 24
$336.7M
Total Debt
MOS
MOS
WTM
WTM
Q4 25
$4.3B
$837.0M
Q3 25
$3.4B
$870.4M
Q2 25
$3.3B
$694.6M
Q1 25
$3.3B
$676.1M
Q4 24
$3.3B
$562.5M
Q3 24
$3.2B
$544.9M
Q2 24
$3.2B
$530.2M
Q1 24
$3.2B
$532.1M
Stockholders' Equity
MOS
MOS
WTM
WTM
Q4 25
$12.1B
$5.4B
Q3 25
$12.8B
$4.8B
Q2 25
$12.4B
$4.6B
Q1 25
$11.8B
$4.5B
Q4 24
$11.5B
$4.5B
Q3 24
$11.8B
$4.6B
Q2 24
$11.7B
$4.4B
Q1 24
$12.0B
$4.5B
Total Assets
MOS
MOS
WTM
WTM
Q4 25
$24.5B
$12.3B
Q3 25
$24.7B
$12.3B
Q2 25
$24.3B
$11.8B
Q1 25
$23.2B
$11.0B
Q4 24
$22.9B
$9.9B
Q3 24
$23.3B
$10.3B
Q2 24
$22.6B
$10.2B
Q1 24
$22.9B
$9.6B
Debt / Equity
MOS
MOS
WTM
WTM
Q4 25
0.35×
0.15×
Q3 25
0.26×
0.18×
Q2 25
0.27×
0.15×
Q1 25
0.28×
0.15×
Q4 24
0.29×
0.13×
Q3 24
0.27×
0.12×
Q2 24
0.27×
0.12×
Q1 24
0.27×
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
MOS
MOS
WTM
WTM
Operating Cash FlowLast quarter
$-56.1M
$53.9M
Free Cash FlowOCF − Capex
$-405.7M
FCF MarginFCF / Revenue
-13.6%
Capex IntensityCapex / Revenue
11.8%
Cash ConversionOCF / Net Profit
0.06×
TTM Free Cash FlowTrailing 4 quarters
$-534.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MOS
MOS
WTM
WTM
Q4 25
$-56.1M
$53.9M
Q3 25
$228.5M
$359.3M
Q2 25
$609.5M
$177.5M
Q1 25
$42.9M
$-40.2M
Q4 24
$219.3M
$64.1M
Q3 24
$312.9M
$269.4M
Q2 24
$847.0M
$216.8M
Q1 24
$-80.0M
$36.5M
Free Cash Flow
MOS
MOS
WTM
WTM
Q4 25
$-405.7M
Q3 25
$-135.9M
Q2 25
$304.9M
Q1 25
$-297.9M
Q4 24
$-74.8M
Q3 24
$72.1M
Q2 24
$513.1M
Q1 24
$-463.0M
FCF Margin
MOS
MOS
WTM
WTM
Q4 25
-13.6%
Q3 25
-3.9%
Q2 25
10.1%
Q1 25
-11.4%
Q4 24
-2.7%
Q3 24
2.6%
Q2 24
18.2%
Q1 24
-17.3%
Capex Intensity
MOS
MOS
WTM
WTM
Q4 25
11.8%
Q3 25
10.6%
Q2 25
10.1%
Q1 25
13.0%
Q4 24
10.4%
Q3 24
8.6%
Q2 24
11.9%
Q1 24
14.3%
Cash Conversion
MOS
MOS
WTM
WTM
Q4 25
0.06×
Q3 25
0.56×
3.16×
Q2 25
1.48×
1.44×
Q1 25
0.18×
-1.19×
Q4 24
1.30×
Q3 24
2.56×
1.51×
Q2 24
Q1 24
-1.77×
0.15×

Financial Flow Comparison

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

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