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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and H2O AMERICA (HTO). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $199.4M, roughly 1.5× H2O AMERICA). H2O AMERICA runs the higher net margin — 8.1% vs -1.2%, a 9.4% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 1.5%). Over the past eight quarters, H2O AMERICA's revenue compounded faster (15.3% CAGR vs 13.5%).

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.

H2O Wireless is a United States-based prepaid cell phone service, that utilizes the AT&T network. It is a brand of the mobile virtual network operator (MVNO) Locus Telecommunications, a subsidiary of Telrite Holdings, Inc., since 2019. Locus was formerly a subsidiary of KDDI America corporation, starting in 2010. H2O Wireless is primarily advertised as a non-restrictive phone service for customers to bring or buy unlocked smartphones, although AT&T contract/locked phones may be accepted as well.

ADTN vs HTO — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.5× larger
ADTN
$291.6M
$199.4M
HTO
Growing faster (revenue YoY)
ADTN
ADTN
+18.6% gap
ADTN
20.1%
1.5%
HTO
Higher net margin
HTO
HTO
9.4% more per $
HTO
8.1%
-1.2%
ADTN
Faster 2-yr revenue CAGR
HTO
HTO
Annualised
HTO
15.3%
13.5%
ADTN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ADTN
ADTN
HTO
HTO
Revenue
$291.6M
$199.4M
Net Profit
$-3.6M
$16.2M
Gross Margin
39.0%
Operating Margin
1.5%
16.6%
Net Margin
-1.2%
8.1%
Revenue YoY
20.1%
1.5%
Net Profit YoY
92.2%
-29.2%
EPS (diluted)
$-0.02
$0.45

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
HTO
HTO
Q4 25
$291.6M
$199.4M
Q3 25
$279.4M
$243.5M
Q2 25
$265.1M
$197.8M
Q1 25
$247.7M
$164.9M
Q4 24
$242.9M
$196.5M
Q3 24
$227.7M
$216.7M
Q2 24
$226.0M
$173.1M
Q1 24
$226.2M
$150.0M
Net Profit
ADTN
ADTN
HTO
HTO
Q4 25
$-3.6M
$16.2M
Q3 25
$-10.3M
$45.1M
Q2 25
$-20.5M
$24.7M
Q1 25
$-11.3M
$16.6M
Q4 24
$-46.1M
$22.9M
Q3 24
$-33.3M
$38.7M
Q2 24
$-49.7M
$20.7M
Q1 24
$-330.8M
$11.7M
Gross Margin
ADTN
ADTN
HTO
HTO
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
HTO
HTO
Q4 25
1.5%
16.6%
Q3 25
-1.0%
26.5%
Q2 25
-5.0%
22.2%
Q1 25
-1.6%
21.8%
Q4 24
-6.9%
22.2%
Q3 24
-11.5%
26.9%
Q2 24
-17.0%
23.4%
Q1 24
-153.1%
18.6%
Net Margin
ADTN
ADTN
HTO
HTO
Q4 25
-1.2%
8.1%
Q3 25
-3.7%
18.5%
Q2 25
-7.7%
12.5%
Q1 25
-4.5%
10.0%
Q4 24
-19.0%
11.7%
Q3 24
-14.6%
17.8%
Q2 24
-22.0%
12.0%
Q1 24
-146.2%
7.8%
EPS (diluted)
ADTN
ADTN
HTO
HTO
Q4 25
$-0.02
$0.45
Q3 25
$-0.12
$1.27
Q2 25
$-0.24
$0.71
Q1 25
$-0.14
$0.49
Q4 24
$-0.58
$0.70
Q3 24
$-0.38
$1.17
Q2 24
$-0.63
$0.64
Q1 24
$-4.20
$0.36

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
HTO
HTO
Cash + ST InvestmentsLiquidity on hand
$95.7M
$20.7M
Total DebtLower is stronger
$1.9B
Stockholders' EquityBook value
$145.8M
$1.5B
Total Assets
$1.2B
$5.1B
Debt / EquityLower = less leverage
1.23×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
HTO
HTO
Q4 25
$95.7M
$20.7M
Q3 25
$93.7M
$11.3M
Q2 25
$106.3M
$19.8M
Q1 25
$101.3M
$23.7M
Q4 24
$76.0M
$11.1M
Q3 24
$88.5M
$4.0M
Q2 24
$111.2M
$22.8M
Q1 24
$106.8M
$4.5M
Total Debt
ADTN
ADTN
HTO
HTO
Q4 25
$1.9B
Q3 25
Q2 25
Q1 25
Q4 24
$1.7B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ADTN
ADTN
HTO
HTO
Q4 25
$145.8M
$1.5B
Q3 25
$141.6M
$1.5B
Q2 25
$169.6M
$1.5B
Q1 25
$138.9M
$1.4B
Q4 24
$127.0M
$1.4B
Q3 24
$205.6M
$1.3B
Q2 24
$213.6M
$1.3B
Q1 24
$260.8M
$1.2B
Total Assets
ADTN
ADTN
HTO
HTO
Q4 25
$1.2B
$5.1B
Q3 25
$1.2B
$5.0B
Q2 25
$1.2B
$4.8B
Q1 25
$1.2B
$4.7B
Q4 24
$1.2B
$4.7B
Q3 24
$1.3B
$4.6B
Q2 24
$1.3B
$4.4B
Q1 24
$1.3B
$4.4B
Debt / Equity
ADTN
ADTN
HTO
HTO
Q4 25
1.23×
Q3 25
Q2 25
Q1 25
Q4 24
1.26×
Q3 24
Q2 24
Q1 24

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
HTO
HTO
Operating Cash FlowLast quarter
$42.2M
$63.5M
Free Cash FlowOCF − Capex
$30.6M
FCF MarginFCF / Revenue
10.5%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
3.92×
TTM Free Cash FlowTrailing 4 quarters
$98.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
HTO
HTO
Q4 25
$42.2M
$63.5M
Q3 25
$12.2M
$77.3M
Q2 25
$32.2M
$60.8M
Q1 25
$43.2M
$43.2M
Q4 24
$2.4M
$41.5M
Q3 24
$43.3M
$53.5M
Q2 24
$19.9M
$49.3M
Q1 24
$37.9M
$51.2M
Free Cash Flow
ADTN
ADTN
HTO
HTO
Q4 25
$30.6M
Q3 25
$4.2M
Q2 25
$27.5M
Q1 25
$35.8M
Q4 24
$-895.0K
Q3 24
$37.1M
Q2 24
$8.4M
Q1 24
$24.4M
FCF Margin
ADTN
ADTN
HTO
HTO
Q4 25
10.5%
Q3 25
1.5%
Q2 25
10.4%
Q1 25
14.4%
Q4 24
-0.4%
Q3 24
16.3%
Q2 24
3.7%
Q1 24
10.8%
Capex Intensity
ADTN
ADTN
HTO
HTO
Q4 25
4.0%
Q3 25
2.9%
Q2 25
1.8%
Q1 25
3.0%
Q4 24
1.4%
Q3 24
2.7%
Q2 24
5.1%
Q1 24
6.0%
Cash Conversion
ADTN
ADTN
HTO
HTO
Q4 25
3.92×
Q3 25
1.71×
Q2 25
2.47×
Q1 25
2.61×
Q4 24
1.81×
Q3 24
1.39×
Q2 24
2.38×
Q1 24
4.38×

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%

HTO
HTO

Water Utility Services$191.0M96%
Other$8.4M4%

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