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

MERCER INTERNATIONAL INC. is the larger business by last-quarter revenue ($449.5M vs $291.6M, roughly 1.5× ADTRAN Holdings, Inc.). ADTRAN Holdings, Inc. runs the higher net margin — -1.2% vs -68.7%, a 67.4% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs -8.0%). MERCER INTERNATIONAL INC. produced more free cash flow last quarter ($32.0M vs $30.6M). Over the past eight quarters, ADTRAN Holdings, Inc.'s revenue compounded faster (13.5% CAGR vs -9.9%).

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.

Mercer is an American consulting firm founded in 1945. It is one of the four operating subsidiaries of global professional services firm Marsh McLennan. Mercer is headquartered in New York City with offices in 43 countries and operations in 130 countries. The company primarily provides human resources and financial services consulting services to its clients.

ADTN vs MERC — Head-to-Head

Bigger by revenue
MERC
MERC
1.5× larger
MERC
$449.5M
$291.6M
ADTN
Growing faster (revenue YoY)
ADTN
ADTN
+28.0% gap
ADTN
20.1%
-8.0%
MERC
Higher net margin
ADTN
ADTN
67.4% more per $
ADTN
-1.2%
-68.7%
MERC
More free cash flow
MERC
MERC
$1.4M more FCF
MERC
$32.0M
$30.6M
ADTN
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
-9.9%
MERC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ADTN
ADTN
MERC
MERC
Revenue
$291.6M
$449.5M
Net Profit
$-3.6M
$-308.7M
Gross Margin
39.0%
Operating Margin
1.5%
-62.0%
Net Margin
-1.2%
-68.7%
Revenue YoY
20.1%
-8.0%
Net Profit YoY
92.2%
-1947.7%
EPS (diluted)
$-0.02
$-4.61

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
MERC
MERC
Q4 25
$291.6M
$449.5M
Q3 25
$279.4M
$458.1M
Q2 25
$265.1M
$453.5M
Q1 25
$247.7M
$507.0M
Q4 24
$242.9M
$488.4M
Q3 24
$227.7M
$502.1M
Q2 24
$226.0M
$499.4M
Q1 24
$226.2M
$553.4M
Net Profit
ADTN
ADTN
MERC
MERC
Q4 25
$-3.6M
$-308.7M
Q3 25
$-10.3M
$-80.8M
Q2 25
$-20.5M
$-86.1M
Q1 25
$-11.3M
$-22.3M
Q4 24
$-46.1M
$16.7M
Q3 24
$-33.3M
$-17.6M
Q2 24
$-49.7M
$-67.6M
Q1 24
$-330.8M
$-16.7M
Gross Margin
ADTN
ADTN
MERC
MERC
Q4 25
39.0%
Q3 25
38.3%
Q2 25
37.3%
Q1 25
38.4%
Q4 24
36.9%
Q3 24
36.5%
Q2 24
36.0%
Q1 24
31.1%
Operating Margin
ADTN
ADTN
MERC
MERC
Q4 25
1.5%
-62.0%
Q3 25
-1.0%
-14.8%
Q2 25
-5.0%
-12.9%
Q1 25
-1.6%
1.3%
Q4 24
-6.9%
10.3%
Q3 24
-11.5%
1.8%
Q2 24
-17.0%
-8.8%
Q1 24
-153.1%
-0.1%
Net Margin
ADTN
ADTN
MERC
MERC
Q4 25
-1.2%
-68.7%
Q3 25
-3.7%
-17.6%
Q2 25
-7.7%
-19.0%
Q1 25
-4.5%
-4.4%
Q4 24
-19.0%
3.4%
Q3 24
-14.6%
-3.5%
Q2 24
-22.0%
-13.5%
Q1 24
-146.2%
-3.0%
EPS (diluted)
ADTN
ADTN
MERC
MERC
Q4 25
$-0.02
$-4.61
Q3 25
$-0.12
$-1.21
Q2 25
$-0.24
$-1.29
Q1 25
$-0.14
$-0.33
Q4 24
$-0.58
$0.25
Q3 24
$-0.38
$-0.26
Q2 24
$-0.63
$-1.01
Q1 24
$-4.20
$-0.25

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
MERC
MERC
Cash + ST InvestmentsLiquidity on hand
$95.7M
$186.8M
Total DebtLower is stronger
$1.6B
Stockholders' EquityBook value
$145.8M
$68.1M
Total Assets
$1.2B
$2.0B
Debt / EquityLower = less leverage
23.58×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
MERC
MERC
Q4 25
$95.7M
$186.8M
Q3 25
$93.7M
$98.1M
Q2 25
$106.3M
$146.5M
Q1 25
$101.3M
$181.5M
Q4 24
$76.0M
$184.9M
Q3 24
$88.5M
$239.0M
Q2 24
$111.2M
$263.2M
Q1 24
$106.8M
$274.3M
Total Debt
ADTN
ADTN
MERC
MERC
Q4 25
$1.6B
Q3 25
$1.5B
Q2 25
$1.5B
Q1 25
$1.5B
Q4 24
$1.5B
Q3 24
$1.6B
Q2 24
$1.6B
Q1 24
$1.6B
Stockholders' Equity
ADTN
ADTN
MERC
MERC
Q4 25
$145.8M
$68.1M
Q3 25
$141.6M
$359.5M
Q2 25
$169.6M
$446.5M
Q1 25
$138.9M
$437.4M
Q4 24
$127.0M
$429.8M
Q3 24
$205.6M
$516.8M
Q2 24
$213.6M
$487.7M
Q1 24
$260.8M
$573.6M
Total Assets
ADTN
ADTN
MERC
MERC
Q4 25
$1.2B
$2.0B
Q3 25
$1.2B
$2.3B
Q2 25
$1.2B
$2.4B
Q1 25
$1.2B
$2.3B
Q4 24
$1.2B
$2.3B
Q3 24
$1.3B
$2.5B
Q2 24
$1.3B
$2.5B
Q1 24
$1.3B
$2.6B
Debt / Equity
ADTN
ADTN
MERC
MERC
Q4 25
23.58×
Q3 25
4.30×
Q2 25
3.42×
Q1 25
3.44×
Q4 24
3.43×
Q3 24
3.09×
Q2 24
3.22×
Q1 24
2.82×

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
MERC
MERC
Operating Cash FlowLast quarter
$42.2M
$46.2M
Free Cash FlowOCF − Capex
$30.6M
$32.0M
FCF MarginFCF / Revenue
10.5%
7.1%
Capex IntensityCapex / Revenue
4.0%
3.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$-80.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
MERC
MERC
Q4 25
$42.2M
$46.2M
Q3 25
$12.2M
$-30.1M
Q2 25
$32.2M
$-4.5M
Q1 25
$43.2M
$-3.0M
Q4 24
$2.4M
$71.2M
Q3 24
$43.3M
$-13.9M
Q2 24
$19.9M
$62.2M
Q1 24
$37.9M
$-29.2M
Free Cash Flow
ADTN
ADTN
MERC
MERC
Q4 25
$30.6M
$32.0M
Q3 25
$4.2M
$-60.1M
Q2 25
$27.5M
$-28.9M
Q1 25
$35.8M
$-23.1M
Q4 24
$-895.0K
$50.4M
Q3 24
$37.1M
$-41.2M
Q2 24
$8.4M
$44.3M
Q1 24
$24.4M
$-47.7M
FCF Margin
ADTN
ADTN
MERC
MERC
Q4 25
10.5%
7.1%
Q3 25
1.5%
-13.1%
Q2 25
10.4%
-6.4%
Q1 25
14.4%
-4.6%
Q4 24
-0.4%
10.3%
Q3 24
16.3%
-8.2%
Q2 24
3.7%
8.9%
Q1 24
10.8%
-8.6%
Capex Intensity
ADTN
ADTN
MERC
MERC
Q4 25
4.0%
3.1%
Q3 25
2.9%
6.6%
Q2 25
1.8%
5.4%
Q1 25
3.0%
4.0%
Q4 24
1.4%
4.2%
Q3 24
2.7%
5.4%
Q2 24
5.1%
3.6%
Q1 24
6.0%
3.3%
Cash Conversion
ADTN
ADTN
MERC
MERC
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
4.26×
Q3 24
Q2 24
Q1 24

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%

MERC
MERC

Other$215.3M48%
Solid Wood$110.2M25%
Lumber$54.9M12%
Pallets$23.7M5%
Energyandchemicals$18.7M4%
Manufactured Products$14.1M3%
Biofuels$10.0M2%
Wood Residuals$2.6M1%

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