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Side-by-side financial comparison of Atmos Energy (ATO) and MUELLER INDUSTRIES INC (MLI). Click either name above to swap in a different company.

Atmos Energy is the larger business by last-quarter revenue ($1.3B vs $962.4M, roughly 1.4× MUELLER INDUSTRIES INC). Atmos Energy runs the higher net margin — 30.0% vs 16.0%, a 14.0% gap on every dollar of revenue. On growth, Atmos Energy posted the faster year-over-year revenue change (14.2% vs 4.2%). MUELLER INDUSTRIES INC produced more free cash flow last quarter ($121.4M vs $-725.3M). Over the past eight quarters, MUELLER INDUSTRIES INC's revenue compounded faster (6.4% CAGR vs -9.7%).

Atmos Energy Corporation, headquartered in Dallas, Texas, is one of the United States' largest natural-gas-only distributors, serving about three million natural gas distribution customers in over 1,400 communities in nine states from the Blue Ridge Mountains in the East to the Rocky Mountains in the West.

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.

ATO vs MLI — Head-to-Head

Bigger by revenue
ATO
ATO
1.4× larger
ATO
$1.3B
$962.4M
MLI
Growing faster (revenue YoY)
ATO
ATO
+10.0% gap
ATO
14.2%
4.2%
MLI
Higher net margin
ATO
ATO
14.0% more per $
ATO
30.0%
16.0%
MLI
More free cash flow
MLI
MLI
$846.7M more FCF
MLI
$121.4M
$-725.3M
ATO
Faster 2-yr revenue CAGR
MLI
MLI
Annualised
MLI
6.4%
-9.7%
ATO

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ATO
ATO
MLI
MLI
Revenue
$1.3B
$962.4M
Net Profit
$403.0M
$153.7M
Gross Margin
Operating Margin
38.3%
17.9%
Net Margin
30.0%
16.0%
Revenue YoY
14.2%
4.2%
Net Profit YoY
14.5%
11.7%
EPS (diluted)
$2.44
$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
ATO
ATO
MLI
MLI
Q4 25
$1.3B
$962.4M
Q3 25
$737.5M
$1.1B
Q2 25
$838.8M
$1.1B
Q1 25
$2.0B
$1.0B
Q4 24
$1.2B
$923.5M
Q3 24
$657.9M
$997.8M
Q2 24
$701.5M
$997.7M
Q1 24
$1.6B
$849.7M
Net Profit
ATO
ATO
MLI
MLI
Q4 25
$403.0M
$153.7M
Q3 25
$174.9M
$208.1M
Q2 25
$186.4M
$245.9M
Q1 25
$485.6M
$157.4M
Q4 24
$351.9M
$137.7M
Q3 24
$134.0M
$168.7M
Q2 24
$165.6M
$160.2M
Q1 24
$432.0M
$138.4M
Gross Margin
ATO
ATO
MLI
MLI
Q4 25
Q3 25
Q2 25
Q1 25
60.0%
Q4 24
80.1%
Q3 24
27.6%
Q2 24
27.3%
Q1 24
62.1%
28.4%
Operating Margin
ATO
ATO
MLI
MLI
Q4 25
38.3%
17.9%
Q3 25
29.8%
25.6%
Q2 25
30.1%
26.7%
Q1 25
32.2%
20.6%
Q4 24
39.1%
18.4%
Q3 24
28.1%
20.7%
Q2 24
31.4%
21.0%
Q1 24
33.4%
21.6%
Net Margin
ATO
ATO
MLI
MLI
Q4 25
30.0%
16.0%
Q3 25
23.7%
19.3%
Q2 25
22.2%
21.6%
Q1 25
24.9%
15.7%
Q4 24
29.9%
14.9%
Q3 24
20.4%
16.9%
Q2 24
23.6%
16.1%
Q1 24
26.2%
16.3%
EPS (diluted)
ATO
ATO
MLI
MLI
Q4 25
$2.44
$1.37
Q3 25
$1.04
$1.88
Q2 25
$1.16
$2.22
Q1 25
$3.03
$1.39
Q4 24
$2.23
$1.21
Q3 24
$0.82
$1.48
Q2 24
$1.08
$1.41
Q1 24
$2.85
$1.21

Balance Sheet & Financial Strength

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

Metric
ATO
ATO
MLI
MLI
Cash + ST InvestmentsLiquidity on hand
$367.0M
$1.4B
Total DebtLower is stronger
$9.6B
Stockholders' EquityBook value
$14.3B
$3.2B
Total Assets
$29.8B
$3.7B
Debt / EquityLower = less leverage
0.67×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATO
ATO
MLI
MLI
Q4 25
$367.0M
$1.4B
Q3 25
$202.7M
$1.3B
Q2 25
$709.4M
$1.1B
Q1 25
$543.5M
$873.6M
Q4 24
$584.5M
$1.1B
Q3 24
$307.3M
$969.6M
Q2 24
$674.6M
$825.7M
Q1 24
$262.5M
$1.4B
Total Debt
ATO
ATO
MLI
MLI
Q4 25
$9.6B
Q3 25
$8.9B
Q2 25
$8.9B
Q1 25
$8.4B
Q4 24
$8.4B
Q3 24
$7.8B
Q2 24
$7.8B
Q1 24
$7.4B
Stockholders' Equity
ATO
ATO
MLI
MLI
Q4 25
$14.3B
$3.2B
Q3 25
$13.6B
$3.1B
Q2 25
$13.4B
$2.9B
Q1 25
$13.1B
$2.7B
Q4 24
$12.8B
$2.8B
Q3 24
$12.2B
$2.7B
Q2 24
$12.2B
$2.5B
Q1 24
$11.6B
$2.4B
Total Assets
ATO
ATO
MLI
MLI
Q4 25
$29.8B
$3.7B
Q3 25
$28.2B
$3.7B
Q2 25
$27.7B
$3.5B
Q1 25
$27.0B
$3.2B
Q4 24
$26.5B
$3.3B
Q3 24
$25.2B
$3.2B
Q2 24
$24.9B
$3.1B
Q1 24
$24.0B
$2.9B
Debt / Equity
ATO
ATO
MLI
MLI
Q4 25
0.67×
Q3 25
0.66×
Q2 25
0.67×
Q1 25
0.64×
Q4 24
0.66×
Q3 24
0.64×
Q2 24
0.64×
Q1 24
0.64×

Cash Flow & Capital Efficiency

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

Metric
ATO
ATO
MLI
MLI
Operating Cash FlowLast quarter
$308.1M
$141.2M
Free Cash FlowOCF − Capex
$-725.3M
$121.4M
FCF MarginFCF / Revenue
-54.0%
12.6%
Capex IntensityCapex / Revenue
77.0%
2.1%
Cash ConversionOCF / Net Profit
0.76×
0.92×
TTM Free Cash FlowTrailing 4 quarters
$-1.6B
$686.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATO
ATO
MLI
MLI
Q4 25
$308.1M
$141.2M
Q3 25
$348.1M
$310.1M
Q2 25
$496.4M
$190.6M
Q1 25
$922.9M
$113.6M
Q4 24
$282.0M
$140.1M
Q3 24
$330.7M
$231.4M
Q2 24
$411.2M
$100.8M
Q1 24
$746.6M
$173.6M
Free Cash Flow
ATO
ATO
MLI
MLI
Q4 25
$-725.3M
$121.4M
Q3 25
$-615.5M
$291.8M
Q2 25
$-370.6M
$176.5M
Q1 25
$83.3M
$97.0M
Q4 24
$-609.2M
$111.2M
Q3 24
$-477.3M
$205.7M
Q2 24
$-302.4M
$91.6M
Q1 24
$100.7M
$157.2M
FCF Margin
ATO
ATO
MLI
MLI
Q4 25
-54.0%
12.6%
Q3 25
-83.5%
27.1%
Q2 25
-44.2%
15.5%
Q1 25
4.3%
9.7%
Q4 24
-51.8%
12.0%
Q3 24
-72.5%
20.6%
Q2 24
-43.1%
9.2%
Q1 24
6.1%
18.5%
Capex Intensity
ATO
ATO
MLI
MLI
Q4 25
77.0%
2.1%
Q3 25
130.7%
1.7%
Q2 25
103.4%
1.2%
Q1 25
43.0%
1.7%
Q4 24
75.8%
3.1%
Q3 24
122.8%
2.6%
Q2 24
101.7%
0.9%
Q1 24
39.2%
1.9%
Cash Conversion
ATO
ATO
MLI
MLI
Q4 25
0.76×
0.92×
Q3 25
1.99×
1.49×
Q2 25
2.66×
0.78×
Q1 25
1.90×
0.72×
Q4 24
0.80×
1.02×
Q3 24
2.47×
1.37×
Q2 24
2.48×
0.63×
Q1 24
1.73×
1.25×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATO
ATO

Distribution Segment$1.3B94%
Transportation Revenue$41.5M3%
Other$39.4M3%
Miscellaneous Revenue$2.8M0%

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%

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