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Side-by-side financial comparison of AEHR TEST SYSTEMS (AEHR) and FLEXIBLE SOLUTIONS INTERNATIONAL INC (FSI). Click either name above to swap in a different company.

AEHR TEST SYSTEMS is the larger business by last-quarter revenue ($9.9M vs $9.1M, roughly 1.1× FLEXIBLE SOLUTIONS INTERNATIONAL INC). FLEXIBLE SOLUTIONS INTERNATIONAL INC runs the higher net margin — -5.1% vs -32.7%, a 27.6% gap on every dollar of revenue. On growth, FLEXIBLE SOLUTIONS INTERNATIONAL INC posted the faster year-over-year revenue change (-0.5% vs -26.5%). AEHR TEST SYSTEMS produced more free cash flow last quarter ($-1.6M vs $-4.0M). Over the past eight quarters, AEHR TEST SYSTEMS's revenue compounded faster (14.3% CAGR vs -0.6%).

Aehr Test Systems designs, manufactures and sells advanced test and burn-in systems for the global semiconductor industry. Its products help semiconductor manufacturers, packaging firms and chip designers validate reliability of logic, memory and power semiconductor devices, serving markets across North America, Asia and Europe.

Flexible Solutions International Inc develops and manufactures specialty chemicals for water conservation, energy efficiency, and agricultural use. Core products include water body evaporative reduction solutions, farm crop yield additives, and swimming pool heat retention products, serving customers across North America and global agricultural markets.

AEHR vs FSI — Head-to-Head

Bigger by revenue
AEHR
AEHR
1.1× larger
AEHR
$9.9M
$9.1M
FSI
Growing faster (revenue YoY)
FSI
FSI
+26.0% gap
FSI
-0.5%
-26.5%
AEHR
Higher net margin
FSI
FSI
27.6% more per $
FSI
-5.1%
-32.7%
AEHR
More free cash flow
AEHR
AEHR
$2.4M more FCF
AEHR
$-1.6M
$-4.0M
FSI
Faster 2-yr revenue CAGR
AEHR
AEHR
Annualised
AEHR
14.3%
-0.6%
FSI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AEHR
AEHR
FSI
FSI
Revenue
$9.9M
$9.1M
Net Profit
$-3.2M
$-460.9K
Gross Margin
25.7%
29.4%
Operating Margin
-47.0%
11.6%
Net Margin
-32.7%
-5.1%
Revenue YoY
-26.5%
-0.5%
Net Profit YoY
-214.2%
-167.8%
EPS (diluted)
$-0.11
$-0.03

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
AEHR
AEHR
FSI
FSI
Q4 25
$9.9M
$9.1M
Q3 25
$11.0M
$10.6M
Q2 25
$14.1M
$11.4M
Q1 25
$18.3M
$7.5M
Q4 24
$13.5M
$9.2M
Q3 24
$13.1M
$9.3M
Q2 24
$16.6M
$10.5M
Q1 24
$7.6M
$9.2M
Net Profit
AEHR
AEHR
FSI
FSI
Q4 25
$-3.2M
$-460.9K
Q3 25
$-2.1M
$-503.4K
Q2 25
$-2.9M
$2.0M
Q1 25
$-643.0K
$-277.7K
Q4 24
$-1.0M
$679.6K
Q3 24
$660.0K
$611.9K
Q2 24
$23.9M
$1.3M
Q1 24
$-1.5M
$457.2K
Gross Margin
AEHR
AEHR
FSI
FSI
Q4 25
25.7%
29.4%
Q3 25
33.9%
23.9%
Q2 25
30.3%
47.4%
Q1 25
39.2%
26.1%
Q4 24
40.1%
29.2%
Q3 24
54.0%
40.9%
Q2 24
50.9%
37.4%
Q1 24
41.7%
30.6%
Operating Margin
AEHR
AEHR
FSI
FSI
Q4 25
-47.0%
11.6%
Q3 25
-37.1%
2.9%
Q2 25
-22.7%
29.0%
Q1 25
-6.1%
-0.9%
Q4 24
-11.2%
9.4%
Q3 24
1.2%
20.5%
Q2 24
15.3%
18.7%
Q1 24
-27.1%
8.3%
Net Margin
AEHR
AEHR
FSI
FSI
Q4 25
-32.7%
-5.1%
Q3 25
-19.0%
-4.8%
Q2 25
-20.6%
17.8%
Q1 25
-3.5%
-3.7%
Q4 24
-7.6%
7.4%
Q3 24
5.0%
6.6%
Q2 24
143.8%
12.3%
Q1 24
-19.4%
5.0%
EPS (diluted)
AEHR
AEHR
FSI
FSI
Q4 25
$-0.11
$-0.03
Q3 25
$-0.07
$-0.04
Q2 25
$-0.10
$0.15
Q1 25
$-0.02
$-0.02
Q4 24
$-0.03
$0.05
Q3 24
$0.02
$0.05
Q2 24
$0.81
$0.10
Q1 24
$-0.05
$0.04

Balance Sheet & Financial Strength

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

Metric
AEHR
AEHR
FSI
FSI
Cash + ST InvestmentsLiquidity on hand
$30.8M
Total DebtLower is stronger
$4.4M
Stockholders' EquityBook value
$130.8M
$38.9M
Total Assets
$148.7M
$61.8M
Debt / EquityLower = less leverage
0.11×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEHR
AEHR
FSI
FSI
Q4 25
$30.8M
Q3 25
$22.7M
Q2 25
$24.5M
$10.0M
Q1 25
$29.4M
$11.0M
Q4 24
$32.2M
$10.0M
Q3 24
$37.8M
$13.0M
Q2 24
$49.2M
$9.2M
Q1 24
$47.6M
$8.3M
Total Debt
AEHR
AEHR
FSI
FSI
Q4 25
$4.4M
Q3 25
$7.1M
Q2 25
$7.5M
Q1 25
$8.1M
Q4 24
$8.8M
Q3 24
$9.4M
Q2 24
$8.3M
Q1 24
$8.0M
Stockholders' Equity
AEHR
AEHR
FSI
FSI
Q4 25
$130.8M
$38.9M
Q3 25
$122.4M
$39.0M
Q2 25
$122.9M
$39.4M
Q1 25
$124.2M
$38.4M
Q4 24
$123.2M
$38.0M
Q3 24
$122.5M
$36.9M
Q2 24
$111.6M
$36.2M
Q1 24
$86.5M
$36.0M
Total Assets
AEHR
AEHR
FSI
FSI
Q4 25
$148.7M
$61.8M
Q3 25
$144.1M
$58.4M
Q2 25
$148.5M
$58.2M
Q1 25
$145.6M
$61.7M
Q4 24
$142.3M
$60.0M
Q3 24
$145.9M
$57.8M
Q2 24
$127.9M
$56.3M
Q1 24
$101.6M
$57.6M
Debt / Equity
AEHR
AEHR
FSI
FSI
Q4 25
0.11×
Q3 25
0.18×
Q2 25
0.19×
Q1 25
0.21×
Q4 24
0.23×
Q3 24
0.25×
Q2 24
0.23×
Q1 24
0.22×

Cash Flow & Capital Efficiency

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

Metric
AEHR
AEHR
FSI
FSI
Operating Cash FlowLast quarter
$-1.2M
$-3.0M
Free Cash FlowOCF − Capex
$-1.6M
$-4.0M
FCF MarginFCF / Revenue
-16.6%
-44.3%
Capex IntensityCapex / Revenue
4.7%
11.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-11.7M
$-591.7K

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEHR
AEHR
FSI
FSI
Q4 25
$-1.2M
$-3.0M
Q3 25
$-282.0K
$2.0M
Q2 25
$-2.3M
$5.3M
Q1 25
$-1.6M
$-544.3K
Q4 24
$-5.9M
$-2.2M
Q3 24
$2.4M
$2.5M
Q2 24
$1.2M
$5.9M
Q1 24
$-2.8M
$-604.8K
Free Cash Flow
AEHR
AEHR
FSI
FSI
Q4 25
$-1.6M
$-4.0M
Q3 25
$-1.7M
$39.4K
Q2 25
$-5.1M
$4.3M
Q1 25
$-3.3M
$-898.4K
Q4 24
$-6.2M
$-4.3M
Q3 24
$2.2M
$1.3M
Q2 24
$1.2M
$4.7M
Q1 24
$-3.1M
$-1.1M
FCF Margin
AEHR
AEHR
FSI
FSI
Q4 25
-16.6%
-44.3%
Q3 25
-15.3%
0.4%
Q2 25
-36.3%
37.9%
Q1 25
-17.8%
-12.0%
Q4 24
-46.0%
-47.0%
Q3 24
16.6%
13.6%
Q2 24
7.1%
44.9%
Q1 24
-40.8%
-11.7%
Capex Intensity
AEHR
AEHR
FSI
FSI
Q4 25
4.7%
11.7%
Q3 25
12.7%
18.7%
Q2 25
20.0%
8.6%
Q1 25
9.0%
4.7%
Q4 24
2.4%
22.8%
Q3 24
1.5%
13.0%
Q2 24
0.3%
11.3%
Q1 24
3.5%
5.2%
Cash Conversion
AEHR
AEHR
FSI
FSI
Q4 25
Q3 25
Q2 25
2.60×
Q1 25
Q4 24
-3.27×
Q3 24
3.61×
4.05×
Q2 24
0.05×
4.59×
Q1 24
-1.32×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AEHR
AEHR

Systems$5.0M50%
Contactors$3.4M35%
Services$1.5M15%

FSI
FSI

Segment breakdown not available.

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