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

ZK International Group Co., Ltd. is the larger business by last-quarter revenue ($108.2M vs $91.4M, roughly 1.2× Amplitude, Inc.). ZK International Group Co., Ltd. runs the higher net margin — -2.6% vs -19.3%, a 16.7% gap on every dollar of revenue. Amplitude, Inc. produced more free cash flow last quarter ($12.7M vs $-7.5M).

Amplitude is an American publicly traded company that develops digital analytics software. The company was listed publicly on the Nasdaq stock exchange under the ticker symbol AMPL on September 28, 2021.

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.

AMPL vs ZKIN — Head-to-Head

Bigger by revenue
ZKIN
ZKIN
1.2× larger
ZKIN
$108.2M
$91.4M
AMPL
Higher net margin
ZKIN
ZKIN
16.7% more per $
ZKIN
-2.6%
-19.3%
AMPL
More free cash flow
AMPL
AMPL
$20.1M more FCF
AMPL
$12.7M
$-7.5M
ZKIN

Income Statement — Q4 FY2025 vs Q4 FY2024

Metric
AMPL
AMPL
ZKIN
ZKIN
Revenue
$91.4M
$108.2M
Net Profit
$-17.7M
$-2.8M
Gross Margin
74.6%
6.1%
Operating Margin
-18.3%
-1.6%
Net Margin
-19.3%
-2.6%
Revenue YoY
17.0%
Net Profit YoY
45.8%
EPS (diluted)
$-0.13
$-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
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$91.4M
Q3 25
$88.6M
Q2 25
$83.3M
Q1 25
$80.0M
Q4 24
$78.1M
Q3 24
$75.2M
$108.2M
Q2 24
$73.3M
Q1 24
$72.6M
Net Profit
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$-17.7M
Q3 25
$-24.0M
Q2 25
$-24.7M
Q1 25
$-22.2M
Q4 24
$-32.6M
Q3 24
$-16.9M
$-2.8M
Q2 24
$-23.4M
Q1 24
$-21.5M
Gross Margin
AMPL
AMPL
ZKIN
ZKIN
Q4 25
74.6%
Q3 25
73.9%
Q2 25
72.6%
Q1 25
74.7%
Q4 24
74.7%
Q3 24
75.1%
6.1%
Q2 24
73.4%
Q1 24
74.0%
Operating Margin
AMPL
AMPL
ZKIN
ZKIN
Q4 25
-18.3%
Q3 25
-26.0%
Q2 25
-29.0%
Q1 25
-26.8%
Q4 24
-41.2%
Q3 24
-21.4%
-1.6%
Q2 24
-31.7%
Q1 24
-29.0%
Net Margin
AMPL
AMPL
ZKIN
ZKIN
Q4 25
-19.3%
Q3 25
-27.1%
Q2 25
-29.6%
Q1 25
-27.8%
Q4 24
-41.7%
Q3 24
-22.4%
-2.6%
Q2 24
-31.9%
Q1 24
-29.5%
EPS (diluted)
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$-0.13
Q3 25
$-0.18
Q2 25
$-0.19
Q1 25
$-0.17
Q4 24
$-0.25
Q3 24
$-0.14
$-0.57
Q2 24
$-0.19
Q1 24
$-0.18

Balance Sheet & Financial Strength

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

Metric
AMPL
AMPL
ZKIN
ZKIN
Cash + ST InvestmentsLiquidity on hand
$192.0M
$4.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$245.3M
$28.2M
Total Assets
$420.7M
$80.0M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$192.0M
Q3 25
$189.2M
Q2 25
$208.1M
Q1 25
$209.0M
Q4 24
$241.1M
Q3 24
$319.9M
$4.1M
Q2 24
$318.3M
Q1 24
$316.1M
Stockholders' Equity
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$245.3M
Q3 25
$262.2M
Q2 25
$279.5M
Q1 25
$289.5M
Q4 24
$296.6M
Q3 24
$290.0M
$28.2M
Q2 24
$287.3M
Q1 24
$289.2M
Total Assets
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$420.7M
Q3 25
$438.1M
Q2 25
$456.6M
Q1 25
$445.8M
Q4 24
$445.9M
Q3 24
$445.6M
$80.0M
Q2 24
$445.4M
Q1 24
$437.9M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMPL
AMPL
ZKIN
ZKIN
Operating Cash FlowLast quarter
$12.8M
$-6.9M
Free Cash FlowOCF − Capex
$12.7M
$-7.5M
FCF MarginFCF / Revenue
13.8%
-6.9%
Capex IntensityCapex / Revenue
0.2%
0.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$28.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$12.8M
Q3 25
$5.0M
Q2 25
$20.1M
Q1 25
$-8.0M
Q4 24
$3.2M
Q3 24
$6.2M
$-6.9M
Q2 24
$9.2M
Q1 24
$-48.0K
Free Cash Flow
AMPL
AMPL
ZKIN
ZKIN
Q4 25
$12.7M
Q3 25
$4.5M
Q2 25
$19.5M
Q1 25
$-8.5M
Q4 24
$2.4M
Q3 24
$6.2M
$-7.5M
Q2 24
$8.6M
Q1 24
$-405.0K
FCF Margin
AMPL
AMPL
ZKIN
ZKIN
Q4 25
13.8%
Q3 25
5.1%
Q2 25
23.4%
Q1 25
-10.6%
Q4 24
3.1%
Q3 24
8.2%
-6.9%
Q2 24
11.8%
Q1 24
-0.6%
Capex Intensity
AMPL
AMPL
ZKIN
ZKIN
Q4 25
0.2%
Q3 25
0.5%
Q2 25
0.6%
Q1 25
0.5%
Q4 24
1.0%
Q3 24
0.0%
0.6%
Q2 24
0.8%
Q1 24
0.5%

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMPL
AMPL

US$55.8M61%
International$35.7M39%

ZKIN
ZKIN

Segment breakdown not available.

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