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Side-by-side financial comparison of AEHR TEST SYSTEMS (AEHR) and PRO DEX INC (PDEX). Click either name above to swap in a different company.

PRO DEX INC is the larger business by last-quarter revenue ($18.7M vs $9.9M, roughly 1.9× AEHR TEST SYSTEMS). PRO DEX INC runs the higher net margin — 11.7% vs -32.7%, a 44.4% gap on every dollar of revenue. On growth, PRO DEX INC posted the faster year-over-year revenue change (11.1% vs -26.5%). PRO DEX INC produced more free cash flow last quarter ($3.5M vs $-1.6M). Over the past eight quarters, AEHR TEST SYSTEMS's revenue compounded faster (14.3% CAGR vs 14.3%).

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.

Pro Dex Inc is a precision manufacturing enterprise that produces custom machined components, subassemblies and finished products primarily for medical device original equipment manufacturers, as well as clients in the aerospace and industrial sectors, with its core operating market covering North America.

AEHR vs PDEX — Head-to-Head

Bigger by revenue
PDEX
PDEX
1.9× larger
PDEX
$18.7M
$9.9M
AEHR
Growing faster (revenue YoY)
PDEX
PDEX
+37.7% gap
PDEX
11.1%
-26.5%
AEHR
Higher net margin
PDEX
PDEX
44.4% more per $
PDEX
11.7%
-32.7%
AEHR
More free cash flow
PDEX
PDEX
$5.1M more FCF
PDEX
$3.5M
$-1.6M
AEHR
Faster 2-yr revenue CAGR
AEHR
AEHR
Annualised
AEHR
14.3%
14.3%
PDEX

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
AEHR
AEHR
PDEX
PDEX
Revenue
$9.9M
$18.7M
Net Profit
$-3.2M
$2.2M
Gross Margin
25.7%
30.8%
Operating Margin
-47.0%
17.5%
Net Margin
-32.7%
11.7%
Revenue YoY
-26.5%
11.1%
Net Profit YoY
-214.2%
7.2%
EPS (diluted)
$-0.11
$0.66

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
PDEX
PDEX
Q4 25
$9.9M
$18.7M
Q3 25
$11.0M
$18.5M
Q2 25
$14.1M
$17.5M
Q1 25
$18.3M
$17.4M
Q4 24
$13.5M
$16.8M
Q3 24
$13.1M
$14.9M
Q2 24
$16.6M
$15.0M
Q1 24
$7.6M
$14.3M
Net Profit
AEHR
AEHR
PDEX
PDEX
Q4 25
$-3.2M
$2.2M
Q3 25
$-2.1M
$4.7M
Q2 25
$-2.9M
$1.2M
Q1 25
$-643.0K
$3.3M
Q4 24
$-1.0M
$2.0M
Q3 24
$660.0K
$2.5M
Q2 24
$23.9M
$1.6M
Q1 24
$-1.5M
$655.0K
Gross Margin
AEHR
AEHR
PDEX
PDEX
Q4 25
25.7%
30.8%
Q3 25
33.9%
29.0%
Q2 25
30.3%
19.9%
Q1 25
39.2%
33.3%
Q4 24
40.1%
30.2%
Q3 24
54.0%
34.6%
Q2 24
50.9%
27.2%
Q1 24
41.7%
28.0%
Operating Margin
AEHR
AEHR
PDEX
PDEX
Q4 25
-47.0%
17.5%
Q3 25
-37.1%
16.8%
Q2 25
-22.7%
7.7%
Q1 25
-6.1%
20.9%
Q4 24
-11.2%
16.0%
Q3 24
1.2%
20.2%
Q2 24
15.3%
15.6%
Q1 24
-27.1%
15.5%
Net Margin
AEHR
AEHR
PDEX
PDEX
Q4 25
-32.7%
11.7%
Q3 25
-19.0%
25.3%
Q2 25
-20.6%
6.8%
Q1 25
-3.5%
18.8%
Q4 24
-7.6%
12.1%
Q3 24
5.0%
16.6%
Q2 24
143.8%
10.6%
Q1 24
-19.4%
4.6%
EPS (diluted)
AEHR
AEHR
PDEX
PDEX
Q4 25
$-0.11
$0.66
Q3 25
$-0.07
$1.40
Q2 25
$-0.10
$0.33
Q1 25
$-0.02
$0.98
Q4 24
$-0.03
$0.61
Q3 24
$0.02
$0.75
Q2 24
$0.81
$0.44
Q1 24
$-0.05
$0.19

Balance Sheet & Financial Strength

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

Metric
AEHR
AEHR
PDEX
PDEX
Cash + ST InvestmentsLiquidity on hand
$30.8M
$6.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$130.8M
$41.6M
Total Assets
$148.7M
$62.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEHR
AEHR
PDEX
PDEX
Q4 25
$30.8M
$6.1M
Q3 25
$22.7M
$10.1M
Q2 25
$24.5M
$6.8M
Q1 25
$29.4M
$5.5M
Q4 24
$32.2M
$4.7M
Q3 24
$37.8M
$7.8M
Q2 24
$49.2M
$6.8M
Q1 24
$47.6M
$7.8M
Total Debt
AEHR
AEHR
PDEX
PDEX
Q4 25
Q3 25
Q2 25
$15.4M
Q1 25
Q4 24
Q3 24
Q2 24
$12.0M
Q1 24
Stockholders' Equity
AEHR
AEHR
PDEX
PDEX
Q4 25
$130.8M
$41.6M
Q3 25
$122.4M
$41.5M
Q2 25
$122.9M
$36.6M
Q1 25
$124.2M
$35.3M
Q4 24
$123.2M
$31.8M
Q3 24
$122.5M
$30.9M
Q2 24
$111.6M
$30.9M
Q1 24
$86.5M
$30.9M
Total Assets
AEHR
AEHR
PDEX
PDEX
Q4 25
$148.7M
$62.3M
Q3 25
$144.1M
$64.3M
Q2 25
$148.5M
$61.2M
Q1 25
$145.6M
$64.3M
Q4 24
$142.3M
$60.4M
Q3 24
$145.9M
$54.3M
Q2 24
$127.9M
$52.5M
Q1 24
$101.6M
$50.5M
Debt / Equity
AEHR
AEHR
PDEX
PDEX
Q4 25
Q3 25
Q2 25
0.42×
Q1 25
Q4 24
Q3 24
Q2 24
0.39×
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
AEHR
AEHR
PDEX
PDEX
Operating Cash FlowLast quarter
$-1.2M
$3.6M
Free Cash FlowOCF − Capex
$-1.6M
$3.5M
FCF MarginFCF / Revenue
-16.6%
18.8%
Capex IntensityCapex / Revenue
4.7%
0.4%
Cash ConversionOCF / Net Profit
1.63×
TTM Free Cash FlowTrailing 4 quarters
$-11.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEHR
AEHR
PDEX
PDEX
Q4 25
$-1.2M
$3.6M
Q3 25
$-282.0K
$2.3M
Q2 25
$-2.3M
$-173.0K
Q1 25
$-1.6M
$754.0K
Q4 24
$-5.9M
$-4.2M
Q3 24
$2.4M
$1.9M
Q2 24
$1.2M
$1.0M
Q1 24
$-2.8M
$4.1M
Free Cash Flow
AEHR
AEHR
PDEX
PDEX
Q4 25
$-1.6M
$3.5M
Q3 25
$-1.7M
$2.2M
Q2 25
$-5.1M
Q1 25
$-3.3M
$574.0K
Q4 24
$-6.2M
$-4.7M
Q3 24
$2.2M
$1.5M
Q2 24
$1.2M
Q1 24
$-3.1M
$4.0M
FCF Margin
AEHR
AEHR
PDEX
PDEX
Q4 25
-16.6%
18.8%
Q3 25
-15.3%
11.9%
Q2 25
-36.3%
Q1 25
-17.8%
3.3%
Q4 24
-46.0%
-27.9%
Q3 24
16.6%
9.8%
Q2 24
7.1%
Q1 24
-40.8%
27.7%
Capex Intensity
AEHR
AEHR
PDEX
PDEX
Q4 25
4.7%
0.4%
Q3 25
12.7%
0.5%
Q2 25
20.0%
Q1 25
9.0%
1.0%
Q4 24
2.4%
3.2%
Q3 24
1.5%
2.9%
Q2 24
0.3%
Q1 24
3.5%
0.8%
Cash Conversion
AEHR
AEHR
PDEX
PDEX
Q4 25
1.63×
Q3 25
0.49×
Q2 25
-0.14×
Q1 25
0.23×
Q4 24
-2.03×
Q3 24
3.61×
0.77×
Q2 24
0.05×
0.66×
Q1 24
6.22×

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%

PDEX
PDEX

Segment breakdown not available.

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