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Side-by-side financial comparison of Charles River Laboratories (CRL) and MUELLER INDUSTRIES INC (MLI). Click either name above to swap in a different company.

Charles River Laboratories is the larger business by last-quarter revenue ($994.2M vs $962.4M, roughly 1.0× MUELLER INDUSTRIES INC). MUELLER INDUSTRIES INC runs the higher net margin — 16.0% vs -27.8%, a 43.8% gap on every dollar of revenue. On growth, MUELLER INDUSTRIES INC posted the faster year-over-year revenue change (4.2% vs -0.8%). MUELLER INDUSTRIES INC produced more free cash flow last quarter ($121.4M vs $58.6M). Over the past eight quarters, MUELLER INDUSTRIES INC's revenue compounded faster (6.4% CAGR vs -0.9%).

Charles River Laboratories International, Inc. is an American pharmaceutical and biotechnology contract research organisation (CRO) headquartered in Wilmington, Massachusetts, United States. Founded in 1947, the company provides preclinical and clinical laboratory services for the development of new drugs, vaccines, and medical devices.

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.

CRL vs MLI — Head-to-Head

Bigger by revenue
CRL
CRL
1.0× larger
CRL
$994.2M
$962.4M
MLI
Growing faster (revenue YoY)
MLI
MLI
+5.0% gap
MLI
4.2%
-0.8%
CRL
Higher net margin
MLI
MLI
43.8% more per $
MLI
16.0%
-27.8%
CRL
More free cash flow
MLI
MLI
$62.8M more FCF
MLI
$121.4M
$58.6M
CRL
Faster 2-yr revenue CAGR
MLI
MLI
Annualised
MLI
6.4%
-0.9%
CRL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CRL
CRL
MLI
MLI
Revenue
$994.2M
$962.4M
Net Profit
$-276.6M
$153.7M
Gross Margin
Operating Margin
-28.5%
17.9%
Net Margin
-27.8%
16.0%
Revenue YoY
-0.8%
4.2%
Net Profit YoY
-28.9%
11.7%
EPS (diluted)
$-5.57
$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
CRL
CRL
MLI
MLI
Q4 25
$994.2M
$962.4M
Q3 25
$1.0B
$1.1B
Q2 25
$1.0B
$1.1B
Q1 25
$984.2M
$1.0B
Q4 24
$1.0B
$923.5M
Q3 24
$1.0B
$997.8M
Q2 24
$1.0B
$997.7M
Q1 24
$1.0B
$849.7M
Net Profit
CRL
CRL
MLI
MLI
Q4 25
$-276.6M
$153.7M
Q3 25
$54.4M
$208.1M
Q2 25
$52.3M
$245.9M
Q1 25
$25.5M
$157.4M
Q4 24
$-214.5M
$137.7M
Q3 24
$69.7M
$168.7M
Q2 24
$94.1M
$160.2M
Q1 24
$73.0M
$138.4M
Gross Margin
CRL
CRL
MLI
MLI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
34.6%
27.6%
Q2 24
34.5%
27.3%
Q1 24
34.1%
28.4%
Operating Margin
CRL
CRL
MLI
MLI
Q4 25
-28.5%
17.9%
Q3 25
13.3%
25.6%
Q2 25
9.7%
26.7%
Q1 25
7.6%
20.6%
Q4 24
-16.7%
18.4%
Q3 24
11.6%
20.7%
Q2 24
14.8%
21.0%
Q1 24
12.5%
21.6%
Net Margin
CRL
CRL
MLI
MLI
Q4 25
-27.8%
16.0%
Q3 25
5.4%
19.3%
Q2 25
5.1%
21.6%
Q1 25
2.6%
15.7%
Q4 24
-21.4%
14.9%
Q3 24
6.9%
16.9%
Q2 24
9.2%
16.1%
Q1 24
7.2%
16.3%
EPS (diluted)
CRL
CRL
MLI
MLI
Q4 25
$-5.57
$1.37
Q3 25
$1.10
$1.88
Q2 25
$1.06
$2.22
Q1 25
$0.50
$1.39
Q4 24
$-4.17
$1.21
Q3 24
$1.33
$1.48
Q2 24
$1.74
$1.41
Q1 24
$1.30
$1.21

Balance Sheet & Financial Strength

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

Metric
CRL
CRL
MLI
MLI
Cash + ST InvestmentsLiquidity on hand
$213.8M
$1.4B
Total DebtLower is stronger
$2.1B
Stockholders' EquityBook value
$3.2B
$3.2B
Total Assets
$7.1B
$3.7B
Debt / EquityLower = less leverage
0.68×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CRL
CRL
MLI
MLI
Q4 25
$213.8M
$1.4B
Q3 25
$207.1M
$1.3B
Q2 25
$182.8M
$1.1B
Q1 25
$229.4M
$873.6M
Q4 24
$194.6M
$1.1B
Q3 24
$210.2M
$969.6M
Q2 24
$179.2M
$825.7M
Q1 24
$327.0M
$1.4B
Total Debt
CRL
CRL
MLI
MLI
Q4 25
$2.1B
Q3 25
$2.2B
Q2 25
$2.3B
Q1 25
$2.5B
Q4 24
$2.2B
Q3 24
$2.3B
Q2 24
$2.4B
Q1 24
$2.7B
Stockholders' Equity
CRL
CRL
MLI
MLI
Q4 25
$3.2B
$3.2B
Q3 25
$3.4B
$3.1B
Q2 25
$3.4B
$2.9B
Q1 25
$3.2B
$2.7B
Q4 24
$3.5B
$2.8B
Q3 24
$3.8B
$2.7B
Q2 24
$3.7B
$2.5B
Q1 24
$3.6B
$2.4B
Total Assets
CRL
CRL
MLI
MLI
Q4 25
$7.1B
$3.7B
Q3 25
$7.5B
$3.7B
Q2 25
$7.6B
$3.5B
Q1 25
$7.6B
$3.2B
Q4 24
$7.5B
$3.3B
Q3 24
$8.0B
$3.2B
Q2 24
$7.9B
$3.1B
Q1 24
$8.2B
$2.9B
Debt / Equity
CRL
CRL
MLI
MLI
Q4 25
0.68×
Q3 25
0.64×
Q2 25
0.70×
Q1 25
0.79×
Q4 24
0.65×
Q3 24
0.62×
Q2 24
0.65×
Q1 24
0.73×

Cash Flow & Capital Efficiency

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

Metric
CRL
CRL
MLI
MLI
Operating Cash FlowLast quarter
$147.5M
$141.2M
Free Cash FlowOCF − Capex
$58.6M
$121.4M
FCF MarginFCF / Revenue
5.9%
12.6%
Capex IntensityCapex / Revenue
8.9%
2.1%
Cash ConversionOCF / Net Profit
0.92×
TTM Free Cash FlowTrailing 4 quarters
$518.5M
$686.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CRL
CRL
MLI
MLI
Q4 25
$147.5M
$141.2M
Q3 25
$213.8M
$310.1M
Q2 25
$204.6M
$190.6M
Q1 25
$171.7M
$113.6M
Q4 24
$159.4M
$140.1M
Q3 24
$251.8M
$231.4M
Q2 24
$193.5M
$100.8M
Q1 24
$129.9M
$173.6M
Free Cash Flow
CRL
CRL
MLI
MLI
Q4 25
$58.6M
$121.4M
Q3 25
$178.2M
$291.8M
Q2 25
$169.3M
$176.5M
Q1 25
$112.4M
$97.0M
Q4 24
$83.7M
$111.2M
Q3 24
$213.1M
$205.7M
Q2 24
$154.0M
$91.6M
Q1 24
$50.7M
$157.2M
FCF Margin
CRL
CRL
MLI
MLI
Q4 25
5.9%
12.6%
Q3 25
17.7%
27.1%
Q2 25
16.4%
15.5%
Q1 25
11.4%
9.7%
Q4 24
8.4%
12.0%
Q3 24
21.1%
20.6%
Q2 24
15.0%
9.2%
Q1 24
5.0%
18.5%
Capex Intensity
CRL
CRL
MLI
MLI
Q4 25
8.9%
2.1%
Q3 25
3.5%
1.7%
Q2 25
3.4%
1.2%
Q1 25
6.0%
1.7%
Q4 24
7.5%
3.1%
Q3 24
3.8%
2.6%
Q2 24
3.8%
0.9%
Q1 24
7.8%
1.9%
Cash Conversion
CRL
CRL
MLI
MLI
Q4 25
0.92×
Q3 25
3.93×
1.49×
Q2 25
3.91×
0.78×
Q1 25
6.74×
0.72×
Q4 24
1.02×
Q3 24
3.61×
1.37×
Q2 24
2.06×
0.63×
Q1 24
1.78×
1.25×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CRL
CRL

Discovery And Safety Assessment Segment$591.6M60%
Manufacturing Support Segment$196.4M20%
Transferred At Point In Time$108.0M11%
Transferred Over Time$98.3M10%

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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