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Side-by-side financial comparison of AEHR TEST SYSTEMS (AEHR) and ROCKWELL MEDICAL, INC. (RMTI). Click either name above to swap in a different company.

ROCKWELL MEDICAL, INC. is the larger business by last-quarter revenue ($18.3M vs $9.9M, roughly 1.9× AEHR TEST SYSTEMS). ROCKWELL MEDICAL, INC. runs the higher net margin — -3.0% vs -32.7%, a 29.7% gap on every dollar of revenue. On growth, ROCKWELL MEDICAL, INC. posted the faster year-over-year revenue change (-25.6% vs -26.5%). ROCKWELL MEDICAL, INC. produced more free cash flow last quarter ($2.2M vs $-1.6M). Over the past eight quarters, AEHR TEST SYSTEMS's revenue compounded faster (14.3% CAGR vs -10.1%).

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.

Rockwell Medical Inc. is a publicly traded pharmaceutical company based in Wixom, Michigan and founded in 1996 that focuses on development and commercialization of treatments against diseases such as end-stage renal disease (ESRD) and chronic kidney disease (CKD).

AEHR vs RMTI — Head-to-Head

Bigger by revenue
RMTI
RMTI
1.9× larger
RMTI
$18.3M
$9.9M
AEHR
Growing faster (revenue YoY)
RMTI
RMTI
+0.9% gap
RMTI
-25.6%
-26.5%
AEHR
Higher net margin
RMTI
RMTI
29.7% more per $
RMTI
-3.0%
-32.7%
AEHR
More free cash flow
RMTI
RMTI
$3.8M more FCF
RMTI
$2.2M
$-1.6M
AEHR
Faster 2-yr revenue CAGR
AEHR
AEHR
Annualised
AEHR
14.3%
-10.1%
RMTI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AEHR
AEHR
RMTI
RMTI
Revenue
$9.9M
$18.3M
Net Profit
$-3.2M
$-554.0K
Gross Margin
25.7%
21.1%
Operating Margin
-47.0%
-2.2%
Net Margin
-32.7%
-3.0%
Revenue YoY
-26.5%
-25.6%
Net Profit YoY
-214.2%
26.7%
EPS (diluted)
$-0.11
$-0.01

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
RMTI
RMTI
Q4 25
$9.9M
$18.3M
Q3 25
$11.0M
$15.9M
Q2 25
$14.1M
$16.1M
Q1 25
$18.3M
$18.9M
Q4 24
$13.5M
$24.7M
Q3 24
$13.1M
$28.3M
Q2 24
$16.6M
$25.8M
Q1 24
$7.6M
$22.7M
Net Profit
AEHR
AEHR
RMTI
RMTI
Q4 25
$-3.2M
$-554.0K
Q3 25
$-2.1M
$-1.8M
Q2 25
$-2.9M
$-1.5M
Q1 25
$-643.0K
$-1.5M
Q4 24
$-1.0M
$-756.0K
Q3 24
$660.0K
$1.7M
Q2 24
$23.9M
$343.0K
Q1 24
$-1.5M
$-1.7M
Gross Margin
AEHR
AEHR
RMTI
RMTI
Q4 25
25.7%
21.1%
Q3 25
33.9%
14.3%
Q2 25
30.3%
15.6%
Q1 25
39.2%
16.1%
Q4 24
40.1%
14.7%
Q3 24
54.0%
22.0%
Q2 24
50.9%
17.6%
Q1 24
41.7%
13.5%
Operating Margin
AEHR
AEHR
RMTI
RMTI
Q4 25
-47.0%
-2.2%
Q3 25
-37.1%
-9.9%
Q2 25
-22.7%
-8.4%
Q1 25
-6.1%
-7.2%
Q4 24
-11.2%
-2.1%
Q3 24
1.2%
6.8%
Q2 24
15.3%
2.0%
Q1 24
-27.1%
-5.8%
Net Margin
AEHR
AEHR
RMTI
RMTI
Q4 25
-32.7%
-3.0%
Q3 25
-19.0%
-11.0%
Q2 25
-20.6%
-9.3%
Q1 25
-3.5%
-8.0%
Q4 24
-7.6%
-3.1%
Q3 24
5.0%
5.9%
Q2 24
143.8%
1.3%
Q1 24
-19.4%
-7.6%
EPS (diluted)
AEHR
AEHR
RMTI
RMTI
Q4 25
$-0.11
$-0.01
Q3 25
$-0.07
$-0.05
Q2 25
$-0.10
$-0.05
Q1 25
$-0.02
$-0.04
Q4 24
$-0.03
$-0.02
Q3 24
$0.02
$0.04
Q2 24
$0.81
$0.01
Q1 24
$-0.05
$-0.06

Balance Sheet & Financial Strength

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

Metric
AEHR
AEHR
RMTI
RMTI
Cash + ST InvestmentsLiquidity on hand
$30.8M
$10.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$130.8M
$37.0M
Total Assets
$148.7M
$57.1M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEHR
AEHR
RMTI
RMTI
Q4 25
$30.8M
$10.7M
Q3 25
$22.7M
$13.6M
Q2 25
$24.5M
$12.5M
Q1 25
$29.4M
$11.4M
Q4 24
$32.2M
$15.7M
Q3 24
$37.8M
$12.3M
Q2 24
$49.2M
$11.9M
Q1 24
$47.6M
$6.6M
Stockholders' Equity
AEHR
AEHR
RMTI
RMTI
Q4 25
$130.8M
$37.0M
Q3 25
$122.4M
$37.0M
Q2 25
$122.9M
$30.4M
Q1 25
$124.2M
$31.5M
Q4 24
$123.2M
$32.6M
Q3 24
$122.5M
$29.1M
Q2 24
$111.6M
$23.5M
Q1 24
$86.5M
$20.6M
Total Assets
AEHR
AEHR
RMTI
RMTI
Q4 25
$148.7M
$57.1M
Q3 25
$144.1M
$57.5M
Q2 25
$148.5M
$52.6M
Q1 25
$145.6M
$54.0M
Q4 24
$142.3M
$59.2M
Q3 24
$145.9M
$57.1M
Q2 24
$127.9M
$53.0M
Q1 24
$101.6M
$50.7M

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
RMTI
RMTI
Operating Cash FlowLast quarter
$-1.2M
$2.3M
Free Cash FlowOCF − Capex
$-1.6M
$2.2M
FCF MarginFCF / Revenue
-16.6%
12.0%
Capex IntensityCapex / Revenue
4.7%
0.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-11.7M
$-1.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEHR
AEHR
RMTI
RMTI
Q4 25
$-1.2M
$2.3M
Q3 25
$-282.0K
$-1.3M
Q2 25
$-2.3M
$1.8M
Q1 25
$-1.6M
$-3.5M
Q4 24
$-5.9M
$865.0K
Q3 24
$2.4M
$4.3M
Q2 24
$1.2M
$1.4M
Q1 24
$-2.8M
$-2.4M
Free Cash Flow
AEHR
AEHR
RMTI
RMTI
Q4 25
$-1.6M
$2.2M
Q3 25
$-1.7M
$-1.5M
Q2 25
$-5.1M
$1.7M
Q1 25
$-3.3M
$-3.5M
Q4 24
$-6.2M
$470.0K
Q3 24
$2.2M
$4.1M
Q2 24
$1.2M
$1.2M
Q1 24
$-3.1M
$-2.5M
FCF Margin
AEHR
AEHR
RMTI
RMTI
Q4 25
-16.6%
12.0%
Q3 25
-15.3%
-9.6%
Q2 25
-36.3%
10.5%
Q1 25
-17.8%
-18.8%
Q4 24
-46.0%
1.9%
Q3 24
16.6%
14.4%
Q2 24
7.1%
4.5%
Q1 24
-40.8%
-11.1%
Capex Intensity
AEHR
AEHR
RMTI
RMTI
Q4 25
4.7%
0.5%
Q3 25
12.7%
1.4%
Q2 25
20.0%
1.0%
Q1 25
9.0%
0.3%
Q4 24
2.4%
1.6%
Q3 24
1.5%
0.7%
Q2 24
0.3%
1.1%
Q1 24
3.5%
0.6%
Cash Conversion
AEHR
AEHR
RMTI
RMTI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
3.61×
2.57×
Q2 24
0.05×
4.20×
Q1 24

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%

RMTI
RMTI

US$15.9M87%
Non Us$2.4M13%

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