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Side-by-side financial comparison of H2O AMERICA (HTO) and ZK International Group Co., Ltd. (ZKIN). Click either name above to swap in a different company.

H2O AMERICA is the larger business by last-quarter revenue ($199.4M vs $108.2M, roughly 1.8× ZK International Group Co., Ltd.). H2O AMERICA runs the higher net margin — 8.1% vs -2.6%, a 10.7% gap on every dollar of revenue.

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.

ZK International Group Co., Ltd. is a China-based enterprise focused on the research, development, design, manufacturing and sale of high-quality stainless steel piping systems and fluid transport supporting products. Its offerings cater to construction, municipal infrastructure and residential engineering segments, with core markets spanning China and selected overseas regions.

HTO vs ZKIN — Head-to-Head

Bigger by revenue
HTO
HTO
1.8× larger
HTO
$199.4M
$108.2M
ZKIN
Higher net margin
HTO
HTO
10.7% more per $
HTO
8.1%
-2.6%
ZKIN

Income Statement — Q4 FY2025 vs Q4 FY2024

Metric
HTO
HTO
ZKIN
ZKIN
Revenue
$199.4M
$108.2M
Net Profit
$16.2M
$-2.8M
Gross Margin
6.1%
Operating Margin
16.6%
-1.6%
Net Margin
8.1%
-2.6%
Revenue YoY
1.5%
Net Profit YoY
-29.2%
EPS (diluted)
$0.45
$-0.57

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
HTO
HTO
ZKIN
ZKIN
Q4 25
$199.4M
Q3 25
$243.5M
Q2 25
$197.8M
Q1 25
$164.9M
Q4 24
$196.5M
Q3 24
$216.7M
$108.2M
Q2 24
$173.1M
Q1 24
$150.0M
Net Profit
HTO
HTO
ZKIN
ZKIN
Q4 25
$16.2M
Q3 25
$45.1M
Q2 25
$24.7M
Q1 25
$16.6M
Q4 24
$22.9M
Q3 24
$38.7M
$-2.8M
Q2 24
$20.7M
Q1 24
$11.7M
Gross Margin
HTO
HTO
ZKIN
ZKIN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
6.1%
Q2 24
Q1 24
Operating Margin
HTO
HTO
ZKIN
ZKIN
Q4 25
16.6%
Q3 25
26.5%
Q2 25
22.2%
Q1 25
21.8%
Q4 24
22.2%
Q3 24
26.9%
-1.6%
Q2 24
23.4%
Q1 24
18.6%
Net Margin
HTO
HTO
ZKIN
ZKIN
Q4 25
8.1%
Q3 25
18.5%
Q2 25
12.5%
Q1 25
10.0%
Q4 24
11.7%
Q3 24
17.8%
-2.6%
Q2 24
12.0%
Q1 24
7.8%
EPS (diluted)
HTO
HTO
ZKIN
ZKIN
Q4 25
$0.45
Q3 25
$1.27
Q2 25
$0.71
Q1 25
$0.49
Q4 24
$0.70
Q3 24
$1.17
$-0.57
Q2 24
$0.64
Q1 24
$0.36

Balance Sheet & Financial Strength

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

Metric
HTO
HTO
ZKIN
ZKIN
Cash + ST InvestmentsLiquidity on hand
$20.7M
$4.1M
Total DebtLower is stronger
$1.9B
Stockholders' EquityBook value
$1.5B
$28.2M
Total Assets
$5.1B
$80.0M
Debt / EquityLower = less leverage
1.23×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
HTO
HTO
ZKIN
ZKIN
Q4 25
$20.7M
Q3 25
$11.3M
Q2 25
$19.8M
Q1 25
$23.7M
Q4 24
$11.1M
Q3 24
$4.0M
$4.1M
Q2 24
$22.8M
Q1 24
$4.5M
Total Debt
HTO
HTO
ZKIN
ZKIN
Q4 25
$1.9B
Q3 25
Q2 25
Q1 25
Q4 24
$1.7B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
HTO
HTO
ZKIN
ZKIN
Q4 25
$1.5B
Q3 25
$1.5B
Q2 25
$1.5B
Q1 25
$1.4B
Q4 24
$1.4B
Q3 24
$1.3B
$28.2M
Q2 24
$1.3B
Q1 24
$1.2B
Total Assets
HTO
HTO
ZKIN
ZKIN
Q4 25
$5.1B
Q3 25
$5.0B
Q2 25
$4.8B
Q1 25
$4.7B
Q4 24
$4.7B
Q3 24
$4.6B
$80.0M
Q2 24
$4.4B
Q1 24
$4.4B
Debt / Equity
HTO
HTO
ZKIN
ZKIN
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
HTO
HTO
ZKIN
ZKIN
Operating Cash FlowLast quarter
$63.5M
$-6.9M
Free Cash FlowOCF − Capex
$-7.5M
FCF MarginFCF / Revenue
-6.9%
Capex IntensityCapex / Revenue
0.6%
Cash ConversionOCF / Net Profit
3.92×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
HTO
HTO
ZKIN
ZKIN
Q4 25
$63.5M
Q3 25
$77.3M
Q2 25
$60.8M
Q1 25
$43.2M
Q4 24
$41.5M
Q3 24
$53.5M
$-6.9M
Q2 24
$49.3M
Q1 24
$51.2M
Free Cash Flow
HTO
HTO
ZKIN
ZKIN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
$-7.5M
Q2 24
Q1 24
FCF Margin
HTO
HTO
ZKIN
ZKIN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
-6.9%
Q2 24
Q1 24
Capex Intensity
HTO
HTO
ZKIN
ZKIN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
0.6%
Q2 24
Q1 24
Cash Conversion
HTO
HTO
ZKIN
ZKIN
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

HTO
HTO

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

ZKIN
ZKIN

Segment breakdown not available.

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