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

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $251.2M, roughly 1.2× POWELL INDUSTRIES INC). POWELL INDUSTRIES INC runs the higher net margin — 16.5% vs -1.2%, a 17.7% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 4.0%). POWELL INDUSTRIES INC produced more free cash flow last quarter ($41.6M vs $30.6M). 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.

Powell Industries, Inc. is a manufacturer of Integrated/Packaged Solutions and Electrical Equipment to monitor and control the distribution of electrical power in commercial and industrial markets founded in 1947. Its headquarters is in Houston, Texas.

ADTN vs POWL — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.2× larger
ADTN
$291.6M
$251.2M
POWL
Growing faster (revenue YoY)
ADTN
ADTN
+16.0% gap
ADTN
20.1%
4.0%
POWL
Higher net margin
POWL
POWL
17.7% more per $
POWL
16.5%
-1.2%
ADTN
More free cash flow
POWL
POWL
$11.0M more FCF
POWL
$41.6M
$30.6M
ADTN
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
-0.8%
POWL

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ADTN
ADTN
POWL
POWL
Revenue
$291.6M
$251.2M
Net Profit
$-3.6M
$41.4M
Gross Margin
39.0%
28.4%
Operating Margin
1.5%
17.0%
Net Margin
-1.2%
16.5%
Revenue YoY
20.1%
4.0%
Net Profit YoY
92.2%
19.1%
EPS (diluted)
$-0.02
$3.40

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
POWL
POWL
Q4 25
$291.6M
$251.2M
Q3 25
$279.4M
$298.0M
Q2 25
$265.1M
$286.3M
Q1 25
$247.7M
$278.6M
Q4 24
$242.9M
$241.4M
Q3 24
$227.7M
$275.1M
Q2 24
$226.0M
$288.2M
Q1 24
$226.2M
$255.1M
Net Profit
ADTN
ADTN
POWL
POWL
Q4 25
$-3.6M
$41.4M
Q3 25
$-10.3M
$51.4M
Q2 25
$-20.5M
$48.2M
Q1 25
$-11.3M
$46.3M
Q4 24
$-46.1M
$34.8M
Q3 24
$-33.3M
$46.1M
Q2 24
$-49.7M
$46.2M
Q1 24
$-330.8M
$33.5M
Gross Margin
ADTN
ADTN
POWL
POWL
Q4 25
39.0%
28.4%
Q3 25
38.3%
31.4%
Q2 25
37.3%
30.7%
Q1 25
38.4%
29.9%
Q4 24
36.9%
24.7%
Q3 24
36.5%
29.2%
Q2 24
36.0%
28.4%
Q1 24
31.1%
24.6%
Operating Margin
ADTN
ADTN
POWL
POWL
Q4 25
1.5%
17.0%
Q3 25
-1.0%
21.2%
Q2 25
-5.0%
21.0%
Q1 25
-1.6%
21.1%
Q4 24
-6.9%
14.7%
Q3 24
-11.5%
20.4%
Q2 24
-17.0%
19.9%
Q1 24
-153.1%
15.5%
Net Margin
ADTN
ADTN
POWL
POWL
Q4 25
-1.2%
16.5%
Q3 25
-3.7%
17.3%
Q2 25
-7.7%
16.8%
Q1 25
-4.5%
16.6%
Q4 24
-19.0%
14.4%
Q3 24
-14.6%
16.7%
Q2 24
-22.0%
16.0%
Q1 24
-146.2%
13.1%
EPS (diluted)
ADTN
ADTN
POWL
POWL
Q4 25
$-0.02
$3.40
Q3 25
$-0.12
$4.23
Q2 25
$-0.24
$3.96
Q1 25
$-0.14
$3.81
Q4 24
$-0.58
$2.86
Q3 24
$-0.38
$3.77
Q2 24
$-0.63
$3.79
Q1 24
$-4.20
$2.75

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
POWL
POWL
Cash + ST InvestmentsLiquidity on hand
$95.7M
$500.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$145.8M
$668.9M
Total Assets
$1.2B
$1.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
POWL
POWL
Q4 25
$95.7M
$500.8M
Q3 25
$93.7M
$475.5M
Q2 25
$106.3M
$433.0M
Q1 25
$101.3M
$389.3M
Q4 24
$76.0M
$373.4M
Q3 24
$88.5M
$358.4M
Q2 24
$111.2M
$374.0M
Q1 24
$106.8M
$365.3M
Stockholders' Equity
ADTN
ADTN
POWL
POWL
Q4 25
$145.8M
$668.9M
Q3 25
$141.6M
$640.8M
Q2 25
$169.6M
$594.9M
Q1 25
$138.9M
$541.4M
Q4 24
$127.0M
$496.3M
Q3 24
$205.6M
$483.1M
Q2 24
$213.6M
$436.7M
Q1 24
$260.8M
$393.8M
Total Assets
ADTN
ADTN
POWL
POWL
Q4 25
$1.2B
$1.1B
Q3 25
$1.2B
$1.1B
Q2 25
$1.2B
$1.0B
Q1 25
$1.2B
$965.4M
Q4 24
$1.2B
$912.7M
Q3 24
$1.3B
$928.2M
Q2 24
$1.3B
$869.0M
Q1 24
$1.3B
$849.6M

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
POWL
POWL
Operating Cash FlowLast quarter
$42.2M
$43.6M
Free Cash FlowOCF − Capex
$30.6M
$41.6M
FCF MarginFCF / Revenue
10.5%
16.6%
Capex IntensityCapex / Revenue
4.0%
0.8%
Cash ConversionOCF / Net Profit
1.05×
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$161.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
POWL
POWL
Q4 25
$42.2M
$43.6M
Q3 25
$12.2M
$61.1M
Q2 25
$32.2M
$47.4M
Q1 25
$43.2M
$22.4M
Q4 24
$2.4M
$37.1M
Q3 24
$43.3M
$-6.0M
Q2 24
$19.9M
$13.8M
Q1 24
$37.9M
$17.0M
Free Cash Flow
ADTN
ADTN
POWL
POWL
Q4 25
$30.6M
$41.6M
Q3 25
$4.2M
$59.3M
Q2 25
$27.5M
$42.3M
Q1 25
$35.8M
$18.3M
Q4 24
$-895.0K
$34.9M
Q3 24
$37.1M
$-14.4M
Q2 24
$8.4M
$12.4M
Q1 24
$24.4M
$16.1M
FCF Margin
ADTN
ADTN
POWL
POWL
Q4 25
10.5%
16.6%
Q3 25
1.5%
19.9%
Q2 25
10.4%
14.8%
Q1 25
14.4%
6.6%
Q4 24
-0.4%
14.4%
Q3 24
16.3%
-5.3%
Q2 24
3.7%
4.3%
Q1 24
10.8%
6.3%
Capex Intensity
ADTN
ADTN
POWL
POWL
Q4 25
4.0%
0.8%
Q3 25
2.9%
0.6%
Q2 25
1.8%
1.8%
Q1 25
3.0%
1.5%
Q4 24
1.4%
0.9%
Q3 24
2.7%
3.1%
Q2 24
5.1%
0.5%
Q1 24
6.0%
0.4%
Cash Conversion
ADTN
ADTN
POWL
POWL
Q4 25
1.05×
Q3 25
1.19×
Q2 25
0.98×
Q1 25
0.48×
Q4 24
1.07×
Q3 24
-0.13×
Q2 24
0.30×
Q1 24
0.51×

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%

POWL
POWL

Oil And Gas Service$97.9M39%
Electricity$69.3M28%
Commercial And Other Industrial$40.6M16%
Petrochemical$22.8M9%
Other Customers$12.0M5%
Light Rail Traction Power Customer$8.6M3%

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