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Side-by-side financial comparison of Mosaic Company (The) (MOS) and WESTLAKE CORP (WLK). Click either name above to swap in a different company.

Mosaic Company (The) is the larger business by last-quarter revenue ($3.0B vs $2.5B, roughly 1.2× WESTLAKE CORP). Mosaic Company (The) runs the higher net margin — -17.5% vs -21.5%, a 4.0% gap on every dollar of revenue. On growth, Mosaic Company (The) posted the faster year-over-year revenue change (5.6% vs -10.9%). WESTLAKE CORP produced more free cash flow last quarter ($-16.0M vs $-405.7M). Over the past eight quarters, Mosaic Company (The)'s revenue compounded faster (5.3% CAGR vs -7.7%).

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.

Westlake Corporation is an international manufacturer and supplier of petrochemicals, polymers and fabricated building products, which are fundamental to various consumer and industrial markets. The company was founded by Ting Tsung Chao in 1986. it is the largest producer of low-density polyethylene (LDPE) in the US and ranks among the Forbes Global 2000. Westlake Chemical operates in two segments: Olefins and Vinyls, and is also an integrated producer of vinyls, with substantial downstream ...

MOS vs WLK — Head-to-Head

Bigger by revenue
MOS
MOS
1.2× larger
MOS
$3.0B
$2.5B
WLK
Growing faster (revenue YoY)
MOS
MOS
+16.5% gap
MOS
5.6%
-10.9%
WLK
Higher net margin
MOS
MOS
4.0% more per $
MOS
-17.5%
-21.5%
WLK
More free cash flow
WLK
WLK
$389.7M more FCF
WLK
$-16.0M
$-405.7M
MOS
Faster 2-yr revenue CAGR
MOS
MOS
Annualised
MOS
5.3%
-7.7%
WLK

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MOS
MOS
WLK
WLK
Revenue
$3.0B
$2.5B
Net Profit
$-519.5M
$-544.0M
Gross Margin
11.5%
3.4%
Operating Margin
-3.4%
-26.5%
Net Margin
-17.5%
-21.5%
Revenue YoY
5.6%
-10.9%
Net Profit YoY
-407.4%
-7871.4%
EPS (diluted)
$-1.63
$-4.22

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
WLK
WLK
Q4 25
$3.0B
$2.5B
Q3 25
$3.5B
$2.8B
Q2 25
$3.0B
$3.0B
Q1 25
$2.6B
$2.8B
Q4 24
$2.8B
$2.8B
Q3 24
$2.8B
$3.1B
Q2 24
$2.8B
$3.2B
Q1 24
$2.7B
$3.0B
Net Profit
MOS
MOS
WLK
WLK
Q4 25
$-519.5M
$-544.0M
Q3 25
$411.4M
$-782.0M
Q2 25
$410.7M
$-142.0M
Q1 25
$238.1M
$-40.0M
Q4 24
$169.0M
$7.0M
Q3 24
$122.2M
$108.0M
Q2 24
$-161.5M
$313.0M
Q1 24
$45.2M
$174.0M
Gross Margin
MOS
MOS
WLK
WLK
Q4 25
11.5%
3.4%
Q3 25
16.0%
8.3%
Q2 25
17.3%
8.7%
Q1 25
18.6%
8.2%
Q4 24
10.7%
11.5%
Q3 24
14.8%
16.0%
Q2 24
14.0%
20.7%
Q1 24
14.9%
15.7%
Operating Margin
MOS
MOS
WLK
WLK
Q4 25
-3.4%
-26.5%
Q3 25
9.8%
-27.0%
Q2 25
8.1%
-3.7%
Q1 25
12.9%
-1.1%
Q4 24
3.5%
2.3%
Q3 24
4.1%
5.8%
Q2 24
8.3%
12.7%
Q1 24
6.5%
7.5%
Net Margin
MOS
MOS
WLK
WLK
Q4 25
-17.5%
-21.5%
Q3 25
11.9%
-27.6%
Q2 25
13.7%
-4.8%
Q1 25
9.1%
-1.4%
Q4 24
6.0%
0.2%
Q3 24
4.3%
3.5%
Q2 24
-5.7%
9.8%
Q1 24
1.7%
5.8%
EPS (diluted)
MOS
MOS
WLK
WLK
Q4 25
$-1.63
$-4.22
Q3 25
$1.29
$-6.06
Q2 25
$1.29
$-1.11
Q1 25
$0.75
$-0.31
Q4 24
$0.53
$0.07
Q3 24
$0.38
$0.83
Q2 24
$-0.50
$2.40
Q1 24
$0.14
$1.34

Balance Sheet & Financial Strength

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

Metric
MOS
MOS
WLK
WLK
Cash + ST InvestmentsLiquidity on hand
$276.6M
$2.7B
Total DebtLower is stronger
$4.3B
$5.6B
Stockholders' EquityBook value
$12.1B
$8.8B
Total Assets
$24.5B
$20.0B
Debt / EquityLower = less leverage
0.35×
0.64×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MOS
MOS
WLK
WLK
Q4 25
$276.6M
$2.7B
Q3 25
$153.3M
$1.9B
Q2 25
$286.2M
$2.1B
Q1 25
$259.2M
$2.3B
Q4 24
$272.8M
$2.9B
Q3 24
$301.6M
$2.9B
Q2 24
$322.0M
$3.0B
Q1 24
$336.7M
$3.1B
Total Debt
MOS
MOS
WLK
WLK
Q4 25
$4.3B
$5.6B
Q3 25
$3.4B
$4.7B
Q2 25
$3.3B
$4.7B
Q1 25
$3.3B
$4.6B
Q4 24
$3.3B
$4.6B
Q3 24
$3.2B
$4.6B
Q2 24
$3.2B
$4.9B
Q1 24
$3.2B
$4.9B
Stockholders' Equity
MOS
MOS
WLK
WLK
Q4 25
$12.1B
$8.8B
Q3 25
$12.8B
$9.4B
Q2 25
$12.4B
$10.3B
Q1 25
$11.8B
$10.4B
Q4 24
$11.5B
$10.5B
Q3 24
$11.8B
$10.7B
Q2 24
$11.7B
$10.6B
Q1 24
$12.0B
$10.3B
Total Assets
MOS
MOS
WLK
WLK
Q4 25
$24.5B
$20.0B
Q3 25
$24.7B
$19.8B
Q2 25
$24.3B
$20.8B
Q1 25
$23.2B
$20.7B
Q4 24
$22.9B
$20.8B
Q3 24
$23.3B
$21.1B
Q2 24
$22.6B
$21.1B
Q1 24
$22.9B
$21.0B
Debt / Equity
MOS
MOS
WLK
WLK
Q4 25
0.35×
0.64×
Q3 25
0.26×
0.49×
Q2 25
0.27×
0.45×
Q1 25
0.28×
0.44×
Q4 24
0.29×
0.43×
Q3 24
0.27×
0.43×
Q2 24
0.27×
0.46×
Q1 24
0.27×
0.47×

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
WLK
WLK
Operating Cash FlowLast quarter
$-56.1M
$225.0M
Free Cash FlowOCF − Capex
$-405.7M
$-16.0M
FCF MarginFCF / Revenue
-13.6%
-0.6%
Capex IntensityCapex / Revenue
11.8%
9.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-534.6M
$-530.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MOS
MOS
WLK
WLK
Q4 25
$-56.1M
$225.0M
Q3 25
$228.5M
$182.0M
Q2 25
$609.5M
$135.0M
Q1 25
$42.9M
$-77.0M
Q4 24
$219.3M
$434.0M
Q3 24
$312.9M
$474.0M
Q2 24
$847.0M
$237.0M
Q1 24
$-80.0M
$169.0M
Free Cash Flow
MOS
MOS
WLK
WLK
Q4 25
$-405.7M
$-16.0M
Q3 25
$-135.9M
$-57.0M
Q2 25
$304.9M
$-132.0M
Q1 25
$-297.9M
$-325.0M
Q4 24
$-74.8M
$149.0M
Q3 24
$72.1M
$254.0M
Q2 24
$513.1M
$6.0M
Q1 24
$-463.0M
$-103.0M
FCF Margin
MOS
MOS
WLK
WLK
Q4 25
-13.6%
-0.6%
Q3 25
-3.9%
-2.0%
Q2 25
10.1%
-4.5%
Q1 25
-11.4%
-11.4%
Q4 24
-2.7%
5.2%
Q3 24
2.6%
8.1%
Q2 24
18.2%
0.2%
Q1 24
-17.3%
-3.5%
Capex Intensity
MOS
MOS
WLK
WLK
Q4 25
11.8%
9.5%
Q3 25
10.6%
8.4%
Q2 25
10.1%
9.0%
Q1 25
13.0%
8.7%
Q4 24
10.4%
10.0%
Q3 24
8.6%
7.1%
Q2 24
11.9%
7.2%
Q1 24
14.3%
9.1%
Cash Conversion
MOS
MOS
WLK
WLK
Q4 25
Q3 25
0.56×
Q2 25
1.48×
Q1 25
0.18×
Q4 24
1.30×
62.00×
Q3 24
2.56×
4.39×
Q2 24
0.76×
Q1 24
-1.77×
0.97×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MOS
MOS

Segment breakdown not available.

WLK
WLK

Performance Materials$930.0M37%
Housing Products$767.0M30%
Essential Materials$702.0M28%
Infrastructure Products$134.0M5%

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