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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and KADANT INC (KAI). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $271.6M, roughly 1.1× KADANT INC). KADANT INC runs the higher net margin — 10.2% vs -1.2%, a 11.4% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs -0.0%). KADANT INC produced more free cash flow last quarter ($44.1M vs $30.6M). Over the past eight quarters, ADTRAN Holdings, Inc.'s revenue compounded faster (13.5% CAGR vs 6.7%).

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.

Kadant Inc. is a company that was established in 1991, as a partly privately owned subsidiary of Thermo Electron, and partly publicly traded company, and was fully spun out and renamed Kadant in 2001. The company supports papermaking, paper recycling, wood processing, material handling, and other processing industries. Kadant is a multi-national corporation with operations in Asia, Europe, North America, and South America.

ADTN vs KAI — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.1× larger
ADTN
$291.6M
$271.6M
KAI
Growing faster (revenue YoY)
ADTN
ADTN
+20.1% gap
ADTN
20.1%
-0.0%
KAI
Higher net margin
KAI
KAI
11.4% more per $
KAI
10.2%
-1.2%
ADTN
More free cash flow
KAI
KAI
$13.5M more FCF
KAI
$44.1M
$30.6M
ADTN
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
6.7%
KAI

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
ADTN
ADTN
KAI
KAI
Revenue
$291.6M
$271.6M
Net Profit
$-3.6M
$27.7M
Gross Margin
39.0%
45.2%
Operating Margin
1.5%
15.7%
Net Margin
-1.2%
10.2%
Revenue YoY
20.1%
-0.0%
Net Profit YoY
92.2%
-12.2%
EPS (diluted)
$-0.02
$2.35

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
KAI
KAI
Q4 25
$291.6M
Q3 25
$279.4M
$271.6M
Q2 25
$265.1M
$255.3M
Q1 25
$247.7M
$239.2M
Q4 24
$242.9M
$258.0M
Q3 24
$227.7M
$271.6M
Q2 24
$226.0M
$274.8M
Q1 24
$226.2M
$249.0M
Net Profit
ADTN
ADTN
KAI
KAI
Q4 25
$-3.6M
Q3 25
$-10.3M
$27.7M
Q2 25
$-20.5M
$26.2M
Q1 25
$-11.3M
$24.1M
Q4 24
$-46.1M
$24.0M
Q3 24
$-33.3M
$31.6M
Q2 24
$-49.7M
$31.3M
Q1 24
$-330.8M
$24.7M
Gross Margin
ADTN
ADTN
KAI
KAI
Q4 25
39.0%
Q3 25
38.3%
45.2%
Q2 25
37.3%
45.9%
Q1 25
38.4%
46.1%
Q4 24
36.9%
43.4%
Q3 24
36.5%
44.7%
Q2 24
36.0%
44.4%
Q1 24
31.1%
44.6%
Operating Margin
ADTN
ADTN
KAI
KAI
Q4 25
1.5%
Q3 25
-1.0%
15.7%
Q2 25
-5.0%
15.4%
Q1 25
-1.6%
14.9%
Q4 24
-6.9%
14.3%
Q3 24
-11.5%
18.0%
Q2 24
-17.0%
17.6%
Q1 24
-153.1%
14.8%
Net Margin
ADTN
ADTN
KAI
KAI
Q4 25
-1.2%
Q3 25
-3.7%
10.2%
Q2 25
-7.7%
10.2%
Q1 25
-4.5%
10.1%
Q4 24
-19.0%
9.3%
Q3 24
-14.6%
11.6%
Q2 24
-22.0%
11.4%
Q1 24
-146.2%
9.9%
EPS (diluted)
ADTN
ADTN
KAI
KAI
Q4 25
$-0.02
Q3 25
$-0.12
$2.35
Q2 25
$-0.24
$2.22
Q1 25
$-0.14
$2.04
Q4 24
$-0.58
$2.04
Q3 24
$-0.38
$2.68
Q2 24
$-0.63
$2.66
Q1 24
$-4.20
$2.10

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
KAI
KAI
Cash + ST InvestmentsLiquidity on hand
$95.7M
$124.5M
Total DebtLower is stronger
$254.6M
Stockholders' EquityBook value
$145.8M
$949.8M
Total Assets
$1.2B
$1.5B
Debt / EquityLower = less leverage
0.27×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
KAI
KAI
Q4 25
$95.7M
Q3 25
$93.7M
$124.5M
Q2 25
$106.3M
$95.3M
Q1 25
$101.3M
$91.7M
Q4 24
$76.0M
$94.7M
Q3 24
$88.5M
$88.4M
Q2 24
$111.2M
$73.8M
Q1 24
$106.8M
$81.4M
Total Debt
ADTN
ADTN
KAI
KAI
Q4 25
Q3 25
$254.6M
Q2 25
$245.7M
Q1 25
$273.5M
Q4 24
$285.2M
Q3 24
$323.2M
Q2 24
$342.0M
Q1 24
$306.8M
Stockholders' Equity
ADTN
ADTN
KAI
KAI
Q4 25
$145.8M
Q3 25
$141.6M
$949.8M
Q2 25
$169.6M
$926.0M
Q1 25
$138.9M
$876.0M
Q4 24
$127.0M
$847.1M
Q3 24
$205.6M
$851.7M
Q2 24
$213.6M
$807.7M
Q1 24
$260.8M
$782.7M
Total Assets
ADTN
ADTN
KAI
KAI
Q4 25
$1.2B
Q3 25
$1.2B
$1.5B
Q2 25
$1.2B
$1.5B
Q1 25
$1.2B
$1.4B
Q4 24
$1.2B
$1.4B
Q3 24
$1.3B
$1.5B
Q2 24
$1.3B
$1.5B
Q1 24
$1.3B
$1.4B
Debt / Equity
ADTN
ADTN
KAI
KAI
Q4 25
Q3 25
0.27×
Q2 25
0.27×
Q1 25
0.31×
Q4 24
0.34×
Q3 24
0.38×
Q2 24
0.42×
Q1 24
0.39×

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
KAI
KAI
Operating Cash FlowLast quarter
$42.2M
$47.3M
Free Cash FlowOCF − Capex
$30.6M
$44.1M
FCF MarginFCF / Revenue
10.5%
16.2%
Capex IntensityCapex / Revenue
4.0%
1.2%
Cash ConversionOCF / Net Profit
1.70×
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$145.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
KAI
KAI
Q4 25
$42.2M
Q3 25
$12.2M
$47.3M
Q2 25
$32.2M
$40.5M
Q1 25
$43.2M
$22.8M
Q4 24
$2.4M
$51.9M
Q3 24
$43.3M
$52.5M
Q2 24
$19.9M
$28.1M
Q1 24
$37.9M
$22.8M
Free Cash Flow
ADTN
ADTN
KAI
KAI
Q4 25
$30.6M
Q3 25
$4.2M
$44.1M
Q2 25
$27.5M
$36.5M
Q1 25
$35.8M
$19.0M
Q4 24
$-895.0K
$46.3M
Q3 24
$37.1M
$48.3M
Q2 24
$8.4M
$23.1M
Q1 24
$24.4M
$16.6M
FCF Margin
ADTN
ADTN
KAI
KAI
Q4 25
10.5%
Q3 25
1.5%
16.2%
Q2 25
10.4%
14.3%
Q1 25
14.4%
7.9%
Q4 24
-0.4%
17.9%
Q3 24
16.3%
17.8%
Q2 24
3.7%
8.4%
Q1 24
10.8%
6.7%
Capex Intensity
ADTN
ADTN
KAI
KAI
Q4 25
4.0%
Q3 25
2.9%
1.2%
Q2 25
1.8%
1.6%
Q1 25
3.0%
1.6%
Q4 24
1.4%
2.2%
Q3 24
2.7%
1.5%
Q2 24
5.1%
1.8%
Q1 24
6.0%
2.5%
Cash Conversion
ADTN
ADTN
KAI
KAI
Q4 25
Q3 25
1.70×
Q2 25
1.55×
Q1 25
0.95×
Q4 24
2.16×
Q3 24
1.66×
Q2 24
0.90×
Q1 24
0.92×

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%

KAI
KAI

Flow Control$94.8M35%
Capital$83.2M31%
Material Handling Systems$70.3M26%
Transferred Over Time$17.1M6%
Other$6.1M2%

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