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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and MARTIN MIDSTREAM PARTNERS L.P. (MMLP). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $187.7M, roughly 1.6× MARTIN MIDSTREAM PARTNERS L.P.). MARTIN MIDSTREAM PARTNERS L.P. runs the higher net margin — 1.7% vs -1.2%, a 2.9% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs -2.5%). ADTRAN Holdings, Inc. produced more free cash flow last quarter ($30.6M vs $-6.0M). Over the past eight quarters, ADTRAN Holdings, Inc.'s revenue compounded faster (13.5% CAGR vs 0.8%).

Adtran, Inc. is an American fiber networking and telecommunications company headquartered in Huntsville, Alabama. It is a vendor of both residential and enterprise networking equipment, along with administrative software for network management and deployment. Its customers include communications service providers, governments, enterprises and utilities.

Martin Midstream Partners L.P. is a U.S.-based midstream energy services provider. It offers storage, transportation, distribution and processing solutions for crude oil, natural gas liquids, refined petroleum products and specialty chemicals, mainly serving customers across North American energy and industrial segments.

ADTN vs MMLP — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.6× larger
ADTN
$291.6M
$187.7M
MMLP
Growing faster (revenue YoY)
ADTN
ADTN
+22.6% gap
ADTN
20.1%
-2.5%
MMLP
Higher net margin
MMLP
MMLP
2.9% more per $
MMLP
1.7%
-1.2%
ADTN
More free cash flow
ADTN
ADTN
$36.6M more FCF
ADTN
$30.6M
$-6.0M
MMLP
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
0.8%
MMLP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ADTN
ADTN
MMLP
MMLP
Revenue
$291.6M
$187.7M
Net Profit
$-3.6M
$3.2M
Gross Margin
39.0%
Operating Margin
1.5%
4.1%
Net Margin
-1.2%
1.7%
Revenue YoY
20.1%
-2.5%
Net Profit YoY
92.2%
-37.1%
EPS (diluted)
$-0.02

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
ADTN
ADTN
MMLP
MMLP
Q1 26
$187.7M
Q4 25
$291.6M
$174.2M
Q3 25
$279.4M
$168.7M
Q2 25
$265.1M
$180.7M
Q1 25
$247.7M
$192.5M
Q4 24
$242.9M
$171.3M
Q3 24
$227.7M
$170.9M
Q2 24
$226.0M
$184.5M
Net Profit
ADTN
ADTN
MMLP
MMLP
Q1 26
$3.2M
Q4 25
$-3.6M
$-2.9M
Q3 25
$-10.3M
$-8.4M
Q2 25
$-20.5M
$-2.4M
Q1 25
$-11.3M
$-1.0M
Q4 24
$-46.1M
$-8.9M
Q3 24
$-33.3M
$-3.3M
Q2 24
$-49.7M
$3.8M
Gross Margin
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
39.0%
57.1%
Q3 25
38.3%
55.1%
Q2 25
37.3%
56.5%
Q1 25
38.4%
53.5%
Q4 24
36.9%
58.2%
Q3 24
36.5%
58.5%
Q2 24
36.0%
58.4%
Operating Margin
ADTN
ADTN
MMLP
MMLP
Q1 26
4.1%
Q4 25
1.5%
7.3%
Q3 25
-1.0%
4.1%
Q2 25
-5.0%
8.2%
Q1 25
-1.6%
7.5%
Q4 24
-6.9%
4.0%
Q3 24
-11.5%
7.4%
Q2 24
-17.0%
10.8%
Net Margin
ADTN
ADTN
MMLP
MMLP
Q1 26
1.7%
Q4 25
-1.2%
-1.7%
Q3 25
-3.7%
-5.0%
Q2 25
-7.7%
-1.3%
Q1 25
-4.5%
-0.5%
Q4 24
-19.0%
-5.2%
Q3 24
-14.6%
-1.9%
Q2 24
-22.0%
2.0%
EPS (diluted)
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
$-0.02
Q3 25
$-0.12
Q2 25
$-0.24
Q1 25
$-0.14
Q4 24
$-0.58
Q3 24
$-0.38
Q2 24
$-0.63

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
MMLP
MMLP
Cash + ST InvestmentsLiquidity on hand
$95.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$145.8M
Total Assets
$1.2B
$537.1M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
$95.7M
Q3 25
$93.7M
Q2 25
$106.3M
Q1 25
$101.3M
Q4 24
$76.0M
Q3 24
$88.5M
Q2 24
$111.2M
Total Debt
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
$428.0M
Q3 25
$441.3M
Q2 25
$427.8M
Q1 25
$451.4M
Q4 24
$437.6M
Q3 24
$469.3M
Q2 24
$439.4M
Stockholders' Equity
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
$145.8M
Q3 25
$141.6M
Q2 25
$169.6M
Q1 25
$138.9M
Q4 24
$127.0M
Q3 24
$205.6M
Q2 24
$213.6M
Total Assets
ADTN
ADTN
MMLP
MMLP
Q1 26
$537.1M
Q4 25
$1.2B
$522.4M
Q3 25
$1.2B
$510.1M
Q2 25
$1.2B
$515.6M
Q1 25
$1.2B
$533.4M
Q4 24
$1.2B
$538.5M
Q3 24
$1.3B
$554.8M
Q2 24
$1.3B
$535.1M

Cash Flow & Capital Efficiency

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

Metric
ADTN
ADTN
MMLP
MMLP
Operating Cash FlowLast quarter
$42.2M
Free Cash FlowOCF − Capex
$30.6M
$-6.0M
FCF MarginFCF / Revenue
10.5%
-3.2%
Capex IntensityCapex / Revenue
4.0%
1.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$27.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
$42.2M
$22.4M
Q3 25
$12.2M
$-1.2M
Q2 25
$32.2M
$30.9M
Q1 25
$43.2M
$-6.0M
Q4 24
$2.4M
$42.2M
Q3 24
$43.3M
$-15.8M
Q2 24
$19.9M
$11.8M
Free Cash Flow
ADTN
ADTN
MMLP
MMLP
Q1 26
$-6.0M
Q4 25
$30.6M
$15.6M
Q3 25
$4.2M
$-7.9M
Q2 25
$27.5M
$25.6M
Q1 25
$35.8M
$-11.9M
Q4 24
$-895.0K
$34.2M
Q3 24
$37.1M
$-25.6M
Q2 24
$8.4M
$-696.0K
FCF Margin
ADTN
ADTN
MMLP
MMLP
Q1 26
-3.2%
Q4 25
10.5%
8.9%
Q3 25
1.5%
-4.7%
Q2 25
10.4%
14.2%
Q1 25
14.4%
-6.2%
Q4 24
-0.4%
20.0%
Q3 24
16.3%
-15.0%
Q2 24
3.7%
-0.4%
Capex Intensity
ADTN
ADTN
MMLP
MMLP
Q1 26
1.6%
Q4 25
4.0%
3.9%
Q3 25
2.9%
4.0%
Q2 25
1.8%
3.0%
Q1 25
3.0%
3.1%
Q4 24
1.4%
4.6%
Q3 24
2.7%
5.8%
Q2 24
5.1%
6.8%
Cash Conversion
ADTN
ADTN
MMLP
MMLP
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
3.13×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ADTN
ADTN

Subscriber Solutions$96.2M33%
Optical Networking Solutions$81.8M28%
Access Aggregation Solutions$64.6M22%
Services And Support$48.9M17%

MMLP
MMLP

Specialty products$61.6M33%
Transportation *$52.8M28%
Other$46.5M25%
Terminalling and storage *$22.4M12%
Sulfur services$4.4M2%

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