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Side-by-side financial comparison of MUELLER INDUSTRIES INC (MLI) and STAR GROUP, L.P. (SGU). Click either name above to swap in a different company.

MUELLER INDUSTRIES INC is the larger business by last-quarter revenue ($962.4M vs $539.3M, roughly 1.8× STAR GROUP, L.P.). MUELLER INDUSTRIES INC runs the higher net margin — 16.0% vs 6.6%, a 9.3% gap on every dollar of revenue. On growth, STAR GROUP, L.P. posted the faster year-over-year revenue change (10.5% vs 4.2%). MUELLER INDUSTRIES INC produced more free cash flow last quarter ($121.4M vs $-59.7M).

Mueller Industries is an American manufacturing company that specializes in piping, industrial metals and climate machinery. It was founded in 1917 and is included on the Fortune 1000 list in 2022. The head office of the company is located in Memphis, Tennessee. Mueller Industries, Inc. is a multi-billion dollar revenue company that is publicly traded.

Lone Star Funds, legal name of main entity Lone Star Global Acquisitions, Ltd. is a global private equity firm that invests in corporate equity, real estate, credit, and other financial assets. The founder of Lone Star established its first fund in 1995 and Lone Star has to date organized 25 private equity funds with total capital commitments since inception of over $95 billion. Lone Star's investors include corporate and public pension funds, sovereign wealth funds, university endowments, fo...

MLI vs SGU — Head-to-Head

Bigger by revenue
MLI
MLI
1.8× larger
MLI
$962.4M
$539.3M
SGU
Growing faster (revenue YoY)
SGU
SGU
+6.3% gap
SGU
10.5%
4.2%
MLI
Higher net margin
MLI
MLI
9.3% more per $
MLI
16.0%
6.6%
SGU
More free cash flow
MLI
MLI
$181.1M more FCF
MLI
$121.4M
$-59.7M
SGU

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MLI
MLI
SGU
SGU
Revenue
$962.4M
$539.3M
Net Profit
$153.7M
$35.8M
Gross Margin
Operating Margin
17.9%
10.1%
Net Margin
16.0%
6.6%
Revenue YoY
4.2%
10.5%
Net Profit YoY
11.7%
8.8%
EPS (diluted)
$1.37

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
MLI
MLI
SGU
SGU
Q4 25
$962.4M
$539.3M
Q3 25
$1.1B
Q2 25
$1.1B
Q1 25
$1.0B
Q4 24
$923.5M
Q3 24
$997.8M
Q2 24
$997.7M
Q1 24
$849.7M
Net Profit
MLI
MLI
SGU
SGU
Q4 25
$153.7M
$35.8M
Q3 25
$208.1M
Q2 25
$245.9M
Q1 25
$157.4M
Q4 24
$137.7M
Q3 24
$168.7M
Q2 24
$160.2M
Q1 24
$138.4M
Gross Margin
MLI
MLI
SGU
SGU
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
27.6%
Q2 24
27.3%
Q1 24
28.4%
Operating Margin
MLI
MLI
SGU
SGU
Q4 25
17.9%
10.1%
Q3 25
25.6%
Q2 25
26.7%
Q1 25
20.6%
Q4 24
18.4%
Q3 24
20.7%
Q2 24
21.0%
Q1 24
21.6%
Net Margin
MLI
MLI
SGU
SGU
Q4 25
16.0%
6.6%
Q3 25
19.3%
Q2 25
21.6%
Q1 25
15.7%
Q4 24
14.9%
Q3 24
16.9%
Q2 24
16.1%
Q1 24
16.3%
EPS (diluted)
MLI
MLI
SGU
SGU
Q4 25
$1.37
Q3 25
$1.88
Q2 25
$2.22
Q1 25
$1.39
Q4 24
$1.21
Q3 24
$1.48
Q2 24
$1.41
Q1 24
$1.21

Balance Sheet & Financial Strength

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

Metric
MLI
MLI
SGU
SGU
Cash + ST InvestmentsLiquidity on hand
$1.4B
$19.9M
Total DebtLower is stronger
$254.8M
Stockholders' EquityBook value
$3.2B
Total Assets
$3.7B
$1.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MLI
MLI
SGU
SGU
Q4 25
$1.4B
$19.9M
Q3 25
$1.3B
Q2 25
$1.1B
Q1 25
$873.6M
Q4 24
$1.1B
Q3 24
$969.6M
Q2 24
$825.7M
Q1 24
$1.4B
Total Debt
MLI
MLI
SGU
SGU
Q4 25
$254.8M
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
MLI
MLI
SGU
SGU
Q4 25
$3.2B
Q3 25
$3.1B
Q2 25
$2.9B
Q1 25
$2.7B
Q4 24
$2.8B
Q3 24
$2.7B
Q2 24
$2.5B
Q1 24
$2.4B
Total Assets
MLI
MLI
SGU
SGU
Q4 25
$3.7B
$1.1B
Q3 25
$3.7B
Q2 25
$3.5B
Q1 25
$3.2B
Q4 24
$3.3B
Q3 24
$3.2B
Q2 24
$3.1B
Q1 24
$2.9B

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
MLI
MLI
SGU
SGU
Operating Cash FlowLast quarter
$141.2M
$-55.2M
Free Cash FlowOCF − Capex
$121.4M
$-59.7M
FCF MarginFCF / Revenue
12.6%
-11.1%
Capex IntensityCapex / Revenue
2.1%
0.8%
Cash ConversionOCF / Net Profit
0.92×
-1.54×
TTM Free Cash FlowTrailing 4 quarters
$686.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MLI
MLI
SGU
SGU
Q4 25
$141.2M
$-55.2M
Q3 25
$310.1M
Q2 25
$190.6M
Q1 25
$113.6M
Q4 24
$140.1M
Q3 24
$231.4M
Q2 24
$100.8M
Q1 24
$173.6M
Free Cash Flow
MLI
MLI
SGU
SGU
Q4 25
$121.4M
$-59.7M
Q3 25
$291.8M
Q2 25
$176.5M
Q1 25
$97.0M
Q4 24
$111.2M
Q3 24
$205.7M
Q2 24
$91.6M
Q1 24
$157.2M
FCF Margin
MLI
MLI
SGU
SGU
Q4 25
12.6%
-11.1%
Q3 25
27.1%
Q2 25
15.5%
Q1 25
9.7%
Q4 24
12.0%
Q3 24
20.6%
Q2 24
9.2%
Q1 24
18.5%
Capex Intensity
MLI
MLI
SGU
SGU
Q4 25
2.1%
0.8%
Q3 25
1.7%
Q2 25
1.2%
Q1 25
1.7%
Q4 24
3.1%
Q3 24
2.6%
Q2 24
0.9%
Q1 24
1.9%
Cash Conversion
MLI
MLI
SGU
SGU
Q4 25
0.92×
-1.54×
Q3 25
1.49×
Q2 25
0.78×
Q1 25
0.72×
Q4 24
1.02×
Q3 24
1.37×
Q2 24
0.63×
Q1 24
1.25×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MLI
MLI

Tube And Fittings$484.6M50%
Industrial Metals$252.2M26%
Valves And Plumbing Specialties$122.5M13%
Flex Duct And Other HVAC Components$80.8M8%
Other Products$14.9M2%

SGU
SGU

Home Heating Oil And Propane$372.6M69%
Motor Fuel And Other Petroleum Products$75.4M14%
Equipment Installations$39.6M7%
Equipment Maintenance Service Contracts$30.3M6%
Billable Call Services$21.4M4%

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