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Side-by-side financial comparison of Aeluma, Inc. (ALMU) and iSpecimen Inc. (ISPC). Click either name above to swap in a different company.

Aeluma, Inc. is the larger business by last-quarter revenue ($1.3M vs $713.1K, roughly 1.8× iSpecimen Inc.). Aeluma, Inc. runs the higher net margin — -145.7% vs -146.9%, a 1.2% gap on every dollar of revenue. On growth, Aeluma, Inc. posted the faster year-over-year revenue change (-21.1% vs -75.1%).

Aeluma, Inc. is a U.S.-headquartered technology firm focused on the design, development, and production of high-performance optoelectronic components and semiconductor products. Its core offerings include photonic sensors and laser diodes, serving the LiDAR, 5G/6G communication, industrial sensing, and automotive markets across North America and the Asia-Pacific region.

Specimen Products is a Chicago-based manufacturer of custom guitars, tube amplifiers, and audio horn speakers led by luthier Ian Schneller. Specimen Products also offers courses in guitar and tube amplifier design, construction, and repair through their Chicago School of Guitar Making. The Specimen workshop offers repair services to the general public, making use of their collection of parts from rare and vintage manufacturers.

ALMU vs ISPC — Head-to-Head

Bigger by revenue
ALMU
ALMU
1.8× larger
ALMU
$1.3M
$713.1K
ISPC
Growing faster (revenue YoY)
ALMU
ALMU
+54.0% gap
ALMU
-21.1%
-75.1%
ISPC
Higher net margin
ALMU
ALMU
1.2% more per $
ALMU
-145.7%
-146.9%
ISPC

Income Statement — Q2 FY2026 vs Q2 FY2025

Metric
ALMU
ALMU
ISPC
ISPC
Revenue
$1.3M
$713.1K
Net Profit
$-1.9M
$-1.0M
Gross Margin
27.8%
44.4%
Operating Margin
-163.6%
-255.4%
Net Margin
-145.7%
-146.9%
Revenue YoY
-21.1%
-75.1%
Net Profit YoY
36.0%
50.3%
EPS (diluted)
$-0.11
$-0.42

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
ALMU
ALMU
ISPC
ISPC
Q4 25
$1.3M
Q3 25
$1.4M
Q2 25
$713.1K
Q1 25
$1.1M
Q4 24
$1.5M
Q3 24
$2.7M
Q2 24
$2.9M
Q1 24
$2.3M
Net Profit
ALMU
ALMU
ISPC
ISPC
Q4 25
$-1.9M
Q3 25
$-1.5M
Q2 25
$-1.0M
Q1 25
$-1.7M
Q4 24
$-6.0M
Q3 24
$-1.4M
Q2 24
$-2.1M
Q1 24
$-2.9M
Gross Margin
ALMU
ALMU
ISPC
ISPC
Q4 25
27.8%
Q3 25
49.4%
Q2 25
44.4%
Q1 25
42.4%
Q4 24
13.5%
Q3 24
43.4%
Q2 24
51.9%
Q1 24
58.4%
Operating Margin
ALMU
ALMU
ISPC
ISPC
Q4 25
-163.6%
Q3 25
-116.1%
Q2 25
-255.4%
Q1 25
-154.9%
Q4 24
-395.8%
Q3 24
-64.1%
Q2 24
-76.2%
Q1 24
-131.0%
Net Margin
ALMU
ALMU
ISPC
ISPC
Q4 25
-145.7%
Q3 25
-107.8%
Q2 25
-146.9%
Q1 25
-156.8%
Q4 24
-409.8%
Q3 24
-54.1%
Q2 24
-73.6%
Q1 24
-126.7%
EPS (diluted)
ALMU
ALMU
ISPC
ISPC
Q4 25
$-0.11
Q3 25
$-0.09
Q2 25
$-0.42
Q1 25
$-0.71
Q4 24
$-5.40
Q3 24
$-2.10
Q2 24
$-3.72
Q1 24
$-6.36

Balance Sheet & Financial Strength

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

Metric
ALMU
ALMU
ISPC
ISPC
Cash + ST InvestmentsLiquidity on hand
$38.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$40.8M
$622.0K
Total Assets
$42.6M
$6.0M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ALMU
ALMU
ISPC
ISPC
Q4 25
$38.6M
Q3 25
$25.9M
Q2 25
Q1 25
Q4 24
$1.9M
Q3 24
$1.8M
Q2 24
$2.2M
Q1 24
$2.1M
Stockholders' Equity
ALMU
ALMU
ISPC
ISPC
Q4 25
$40.8M
Q3 25
$40.9M
Q2 25
$622.0K
Q1 25
$1.7M
Q4 24
$3.3M
Q3 24
$4.7M
Q2 24
$6.1M
Q1 24
$6.8M
Total Assets
ALMU
ALMU
ISPC
ISPC
Q4 25
$42.6M
Q3 25
$42.7M
Q2 25
$6.0M
Q1 25
$6.8M
Q4 24
$9.4M
Q3 24
$11.3M
Q2 24
$11.9M
Q1 24
$12.5M

Cash Flow & Capital Efficiency

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

Metric
ALMU
ALMU
ISPC
ISPC
Operating Cash FlowLast quarter
$-251.0K
$-192.2K
Free Cash FlowOCF − Capex
$-282.0K
FCF MarginFCF / Revenue
-22.2%
Capex IntensityCapex / Revenue
2.4%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ALMU
ALMU
ISPC
ISPC
Q4 25
$-251.0K
Q3 25
$-815.0K
Q2 25
$-192.2K
Q1 25
$-1.1M
Q4 24
$-3.6M
Q3 24
$-1.1M
Q2 24
$-1.5M
Q1 24
$-2.1M
Free Cash Flow
ALMU
ALMU
ISPC
ISPC
Q4 25
$-282.0K
Q3 25
$-1.0M
Q2 25
Q1 25
Q4 24
$-3.6M
Q3 24
$-1.1M
Q2 24
Q1 24
$-2.1M
FCF Margin
ALMU
ALMU
ISPC
ISPC
Q4 25
-22.2%
Q3 25
-74.0%
Q2 25
Q1 25
Q4 24
-242.7%
Q3 24
-41.1%
Q2 24
Q1 24
-90.9%
Capex Intensity
ALMU
ALMU
ISPC
ISPC
Q4 25
2.4%
Q3 25
15.2%
Q2 25
Q1 25
Q4 24
0.5%
Q3 24
0.5%
Q2 24
0.0%
Q1 24
0.4%

Financial Flow Comparison

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

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