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Side-by-side financial comparison of Aterian, Inc. (ATER) and ESPEY MFG & ELECTRONICS CORP (ESP). Click either name above to swap in a different company.

Aterian, Inc. is the larger business by last-quarter revenue ($15.1M vs $12.1M, roughly 1.2× ESPEY MFG & ELECTRONICS CORP). ESPEY MFG & ELECTRONICS CORP runs the higher net margin — 23.1% vs -52.5%, a 75.6% gap on every dollar of revenue. On growth, ESPEY MFG & ELECTRONICS CORP posted the faster year-over-year revenue change (-10.8% vs -38.5%). Aterian, Inc. produced more free cash flow last quarter ($-1.0M vs $-4.1M). Over the past eight quarters, ESPEY MFG & ELECTRONICS CORP's revenue compounded faster (21.3% CAGR vs -13.5%).

Aterian, Inc. is a technology-enabled consumer products company that leverages artificial intelligence and data analytics to identify market demand, develop, source and distribute a wide portfolio of affordable goods spanning home improvement, wellness, personal care, pet supplies and outdoor recreation. It primarily sells its products through leading global e-commerce platforms, with core markets covering North America and Europe.

ESPEY MFG & ELECTRONICS CORP is a US-based manufacturer specializing in high-reliability power supplies, power conversion systems and specialized electronic components. It serves aerospace, defense, industrial and transportation sectors, delivering custom solutions for harsh environments to OEMs and government contractors across North America and select global markets.

ATER vs ESP — Head-to-Head

Bigger by revenue
ATER
ATER
1.2× larger
ATER
$15.1M
$12.1M
ESP
Growing faster (revenue YoY)
ESP
ESP
+27.7% gap
ESP
-10.8%
-38.5%
ATER
Higher net margin
ESP
ESP
75.6% more per $
ESP
23.1%
-52.5%
ATER
More free cash flow
ATER
ATER
$3.1M more FCF
ATER
$-1.0M
$-4.1M
ESP
Faster 2-yr revenue CAGR
ESP
ESP
Annualised
ESP
21.3%
-13.5%
ATER

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
ATER
ATER
ESP
ESP
Revenue
$15.1M
$12.1M
Net Profit
$-7.9M
$2.8M
Gross Margin
56.1%
34.7%
Operating Margin
-51.1%
25.3%
Net Margin
-52.5%
23.1%
Revenue YoY
-38.5%
-10.8%
Net Profit YoY
-512.2%
47.0%
EPS (diluted)
$0.99

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
ATER
ATER
ESP
ESP
Q4 25
$15.1M
$12.1M
Q3 25
$19.0M
$9.1M
Q2 25
$19.5M
$9.6M
Q1 25
$15.4M
$10.3M
Q4 24
$24.6M
$13.6M
Q3 24
$26.2M
$10.4M
Q2 24
$28.0M
$11.6M
Q1 24
$20.2M
$8.3M
Net Profit
ATER
ATER
ESP
ESP
Q4 25
$-7.9M
$2.8M
Q3 25
$-2.3M
$2.2M
Q2 25
$-4.9M
$2.9M
Q1 25
$-3.9M
$1.7M
Q4 24
$-1.3M
$1.9M
Q3 24
$-1.8M
$1.6M
Q2 24
$-3.6M
$1.9M
Q1 24
$-5.2M
$1.0M
Gross Margin
ATER
ATER
ESP
ESP
Q4 25
56.1%
34.7%
Q3 25
56.1%
35.4%
Q2 25
54.3%
39.3%
Q1 25
61.4%
28.6%
Q4 24
63.4%
23.2%
Q3 24
60.3%
26.8%
Q2 24
60.4%
27.6%
Q1 24
65.1%
25.0%
Operating Margin
ATER
ATER
ESP
ESP
Q4 25
-51.1%
25.3%
Q3 25
-10.7%
22.7%
Q2 25
-23.1%
27.4%
Q1 25
-24.1%
17.0%
Q4 24
-6.5%
14.9%
Q3 24
-6.6%
16.5%
Q2 24
-11.5%
18.4%
Q1 24
-26.1%
13.2%
Net Margin
ATER
ATER
ESP
ESP
Q4 25
-52.5%
23.1%
Q3 25
-12.0%
23.9%
Q2 25
-25.0%
30.6%
Q1 25
-25.4%
16.5%
Q4 24
-5.3%
14.0%
Q3 24
-6.8%
15.3%
Q2 24
-13.0%
16.3%
Q1 24
-25.5%
12.5%
EPS (diluted)
ATER
ATER
ESP
ESP
Q4 25
$0.99
Q3 25
$0.76
Q2 25
$1.07
Q1 25
$0.63
Q4 24
$0.71
Q3 24
$0.61
Q2 24
$0.73
Q1 24
$0.40

Balance Sheet & Financial Strength

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

Metric
ATER
ATER
ESP
ESP
Cash + ST InvestmentsLiquidity on hand
$4.9M
$17.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$15.2M
$53.2M
Total Assets
$29.6M
$85.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATER
ATER
ESP
ESP
Q4 25
$4.9M
$17.8M
Q3 25
$7.6M
$22.2M
Q2 25
$10.5M
$18.9M
Q1 25
$14.3M
$13.9M
Q4 24
$18.0M
$8.0M
Q3 24
$16.1M
$4.8M
Q2 24
$20.3M
$4.4M
Q1 24
$17.5M
$5.6M
Stockholders' Equity
ATER
ATER
ESP
ESP
Q4 25
$15.2M
$53.2M
Q3 25
$22.6M
$51.0M
Q2 25
$24.3M
$50.8M
Q1 25
$27.0M
$46.3M
Q4 24
$30.0M
$44.8M
Q3 24
$30.6M
$42.5M
Q2 24
$30.9M
$41.3M
Q1 24
$33.0M
$39.3M
Total Assets
ATER
ATER
ESP
ESP
Q4 25
$29.6M
$85.2M
Q3 25
$40.1M
$84.8M
Q2 25
$45.4M
$79.1M
Q1 25
$49.8M
$72.8M
Q4 24
$49.5M
$60.2M
Q3 24
$52.1M
$57.6M
Q2 24
$59.9M
$56.5M
Q1 24
$55.7M
$53.1M

Cash Flow & Capital Efficiency

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

Metric
ATER
ATER
ESP
ESP
Operating Cash FlowLast quarter
$-1.0M
$-2.8M
Free Cash FlowOCF − Capex
$-1.0M
$-4.1M
FCF MarginFCF / Revenue
-6.9%
-34.1%
Capex IntensityCapex / Revenue
0.0%
10.9%
Cash ConversionOCF / Net Profit
-1.00×
TTM Free Cash FlowTrailing 4 quarters
$11.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATER
ATER
ESP
ESP
Q4 25
$-1.0M
$-2.8M
Q3 25
$-1.6M
$5.7M
Q2 25
$-4.4M
$2.8M
Q1 25
$-3.9M
$11.5M
Q4 24
$-9.0K
$5.4M
Q3 24
$-722.0K
$1.4M
Q2 24
$2.9M
$3.2M
Q1 24
$-6.0K
$1.4M
Free Cash Flow
ATER
ATER
ESP
ESP
Q4 25
$-1.0M
$-4.1M
Q3 25
$-1.6M
$4.4M
Q2 25
$-4.4M
$915.3K
Q1 25
$10.5M
Q4 24
$4.5M
Q3 24
$724.8K
Q2 24
$2.9M
$2.6M
Q1 24
$-42.0K
$379.1K
FCF Margin
ATER
ATER
ESP
ESP
Q4 25
-6.9%
-34.1%
Q3 25
-8.4%
48.7%
Q2 25
-22.7%
9.5%
Q1 25
101.8%
Q4 24
33.0%
Q3 24
6.9%
Q2 24
10.3%
22.2%
Q1 24
-0.2%
4.6%
Capex Intensity
ATER
ATER
ESP
ESP
Q4 25
0.0%
10.9%
Q3 25
0.2%
14.2%
Q2 25
0.0%
19.3%
Q1 25
0.0%
9.3%
Q4 24
0.0%
6.5%
Q3 24
0.0%
6.4%
Q2 24
0.0%
5.7%
Q1 24
0.2%
12.5%
Cash Conversion
ATER
ATER
ESP
ESP
Q4 25
-1.00×
Q3 25
2.64×
Q2 25
0.95×
Q1 25
6.72×
Q4 24
2.82×
Q3 24
0.87×
Q2 24
1.71×
Q1 24
1.37×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATER
ATER

Sales Channel Directly To Consumer$13.1M87%
Heating Cooling And Air Quality$2.1M14%

ESP
ESP

ASC606$11.3M93%
Other$855.0K7%

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