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

STANDARD MOTOR PRODUCTS, INC. is the larger business by last-quarter revenue ($385.1M vs $291.6M, roughly 1.3× ADTRAN Holdings, Inc.). STANDARD MOTOR PRODUCTS, INC. runs the higher net margin — 2.0% vs -1.2%, a 3.3% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 12.2%). ADTRAN Holdings, Inc. produced more free cash flow last quarter ($30.6M vs $-37.6M). Over the past eight quarters, ADTRAN Holdings, Inc.'s revenue compounded faster (13.5% CAGR vs 7.8%).

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.

Standard Motor Products, Inc. is a manufacturer and distributor of automotive parts. The company was founded in 1919 as a partnership by Elias Fife and Ralph Van Allen and incorporated by Fife in 1926. It is headquartered in Long Island City, New York, and trades on the New York Stock Exchange. SMP includes four operational segments: Vehicle Control, Temperature Control, Engineered Solutions and Nissens. SMP’s Vehicle Control and Temperature Control divisions supply automotive aftermarket com...

ADTN vs SMP — Head-to-Head

Bigger by revenue
SMP
SMP
1.3× larger
SMP
$385.1M
$291.6M
ADTN
Growing faster (revenue YoY)
ADTN
ADTN
+7.9% gap
ADTN
20.1%
12.2%
SMP
Higher net margin
SMP
SMP
3.3% more per $
SMP
2.0%
-1.2%
ADTN
More free cash flow
ADTN
ADTN
$68.2M more FCF
ADTN
$30.6M
$-37.6M
SMP
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
7.8%
SMP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ADTN
ADTN
SMP
SMP
Revenue
$291.6M
$385.1M
Net Profit
$-3.6M
$7.9M
Gross Margin
39.0%
31.7%
Operating Margin
1.5%
5.6%
Net Margin
-1.2%
2.0%
Revenue YoY
20.1%
12.2%
Net Profit YoY
92.2%
457.9%
EPS (diluted)
$-0.02
$0.34

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
SMP
SMP
Q4 25
$291.6M
$385.1M
Q3 25
$279.4M
$498.8M
Q2 25
$265.1M
$493.9M
Q1 25
$247.7M
$413.4M
Q4 24
$242.9M
$343.4M
Q3 24
$227.7M
$399.3M
Q2 24
$226.0M
$389.8M
Q1 24
$226.2M
$331.4M
Net Profit
ADTN
ADTN
SMP
SMP
Q4 25
$-3.6M
$7.9M
Q3 25
$-10.3M
$-4.3M
Q2 25
$-20.5M
$25.2M
Q1 25
$-11.3M
$12.6M
Q4 24
$-46.1M
$-2.2M
Q3 24
$-33.3M
$3.8M
Q2 24
$-49.7M
$17.1M
Q1 24
$-330.8M
$8.8M
Gross Margin
ADTN
ADTN
SMP
SMP
Q4 25
39.0%
31.7%
Q3 25
38.3%
32.4%
Q2 25
37.3%
30.6%
Q1 25
38.4%
30.2%
Q4 24
36.9%
29.4%
Q3 24
36.5%
30.4%
Q2 24
36.0%
28.6%
Q1 24
31.1%
27.0%
Operating Margin
ADTN
ADTN
SMP
SMP
Q4 25
1.5%
5.6%
Q3 25
-1.0%
9.5%
Q2 25
-5.0%
8.7%
Q1 25
-1.6%
5.9%
Q4 24
-6.9%
1.1%
Q3 24
-11.5%
9.3%
Q2 24
-17.0%
6.4%
Q1 24
-153.1%
4.4%
Net Margin
ADTN
ADTN
SMP
SMP
Q4 25
-1.2%
2.0%
Q3 25
-3.7%
-0.9%
Q2 25
-7.7%
5.1%
Q1 25
-4.5%
3.0%
Q4 24
-19.0%
-0.6%
Q3 24
-14.6%
1.0%
Q2 24
-22.0%
4.4%
Q1 24
-146.2%
2.7%
EPS (diluted)
ADTN
ADTN
SMP
SMP
Q4 25
$-0.02
$0.34
Q3 25
$-0.12
$-0.19
Q2 25
$-0.24
$1.13
Q1 25
$-0.14
$0.56
Q4 24
$-0.58
$-0.09
Q3 24
$-0.38
$0.17
Q2 24
$-0.63
$0.77
Q1 24
$-4.20
$0.39

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
SMP
SMP
Cash + ST InvestmentsLiquidity on hand
$95.7M
Total DebtLower is stronger
$618.7M
Stockholders' EquityBook value
$145.8M
$683.7M
Total Assets
$1.2B
$2.0B
Debt / EquityLower = less leverage
0.90×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
SMP
SMP
Q4 25
$95.7M
Q3 25
$93.7M
$87.2M
Q2 25
$106.3M
$58.8M
Q1 25
$101.3M
$50.3M
Q4 24
$76.0M
$44.4M
Q3 24
$88.5M
$26.3M
Q2 24
$111.2M
$26.2M
Q1 24
$106.8M
$27.1M
Total Debt
ADTN
ADTN
SMP
SMP
Q4 25
$618.7M
Q3 25
$589.5M
Q2 25
$636.6M
Q1 25
$650.6M
Q4 24
$562.3M
Q3 24
$142.8M
Q2 24
$208.2M
Q1 24
$214.9M
Stockholders' Equity
ADTN
ADTN
SMP
SMP
Q4 25
$145.8M
$683.7M
Q3 25
$141.6M
$677.4M
Q2 25
$169.6M
$688.6M
Q1 25
$138.9M
$638.0M
Q4 24
$127.0M
$615.7M
Q3 24
$205.6M
$638.8M
Q2 24
$213.6M
$640.0M
Q1 24
$260.8M
$639.1M
Total Assets
ADTN
ADTN
SMP
SMP
Q4 25
$1.2B
$2.0B
Q3 25
$1.2B
$2.0B
Q2 25
$1.2B
$2.0B
Q1 25
$1.2B
$1.9B
Q4 24
$1.2B
$1.8B
Q3 24
$1.3B
$1.4B
Q2 24
$1.3B
$1.4B
Q1 24
$1.3B
$1.4B
Debt / Equity
ADTN
ADTN
SMP
SMP
Q4 25
0.90×
Q3 25
0.87×
Q2 25
0.92×
Q1 25
1.02×
Q4 24
0.91×
Q3 24
0.22×
Q2 24
0.33×
Q1 24
0.34×

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
SMP
SMP
Operating Cash FlowLast quarter
$42.2M
$-28.2M
Free Cash FlowOCF − Capex
$30.6M
$-37.6M
FCF MarginFCF / Revenue
10.5%
-9.8%
Capex IntensityCapex / Revenue
4.0%
2.4%
Cash ConversionOCF / Net Profit
-3.59×
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$18.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
SMP
SMP
Q4 25
$42.2M
$-28.2M
Q3 25
$12.2M
$91.6M
Q2 25
$32.2M
$54.3M
Q1 25
$43.2M
$-60.2M
Q4 24
$2.4M
$-1.5M
Q3 24
$43.3M
$88.3M
Q2 24
$19.9M
$35.6M
Q1 24
$37.9M
$-45.7M
Free Cash Flow
ADTN
ADTN
SMP
SMP
Q4 25
$30.6M
$-37.6M
Q3 25
$4.2M
$81.5M
Q2 25
$27.5M
$44.2M
Q1 25
$35.8M
$-69.4M
Q4 24
$-895.0K
$-11.4M
Q3 24
$37.1M
$77.1M
Q2 24
$8.4M
$22.7M
Q1 24
$24.4M
$-55.8M
FCF Margin
ADTN
ADTN
SMP
SMP
Q4 25
10.5%
-9.8%
Q3 25
1.5%
16.3%
Q2 25
10.4%
8.9%
Q1 25
14.4%
-16.8%
Q4 24
-0.4%
-3.3%
Q3 24
16.3%
19.3%
Q2 24
3.7%
5.8%
Q1 24
10.8%
-16.8%
Capex Intensity
ADTN
ADTN
SMP
SMP
Q4 25
4.0%
2.4%
Q3 25
2.9%
2.0%
Q2 25
1.8%
2.1%
Q1 25
3.0%
2.2%
Q4 24
1.4%
2.9%
Q3 24
2.7%
2.8%
Q2 24
5.1%
3.3%
Q1 24
6.0%
3.0%
Cash Conversion
ADTN
ADTN
SMP
SMP
Q4 25
-3.59×
Q3 25
Q2 25
2.15×
Q1 25
-4.79×
Q4 24
Q3 24
23.19×
Q2 24
2.09×
Q1 24
-5.18×

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%

SMP
SMP

Engineered Solutions$66.1M17%
Electrical And Safety$63.6M17%
Temperature Control$61.5M16%
Europe Excluding Poland$55.5M14%
Other Thermal Components$30.7M8%
Air Conditioning$22.7M6%
Commercial Vehicle$19.7M5%
All Other$18.9M5%
PL$16.0M4%
Wire Sets And Other$11.9M3%
Engine Efficiency$10.0M3%
Construction Agriculture$7.8M2%

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