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Side-by-side financial comparison of MILESTONE SCIENTIFIC INC. (MLSS) and Expion360 Inc. (XPON). Click either name above to swap in a different company.

Expion360 Inc. is the larger business by last-quarter revenue ($2.2M vs $2.1M, roughly 1.1× MILESTONE SCIENTIFIC INC.). MILESTONE SCIENTIFIC INC. runs the higher net margin — -53.0% vs -199.9%, a 146.9% gap on every dollar of revenue. On growth, Expion360 Inc. posted the faster year-over-year revenue change (11.8% vs 2.2%). Over the past eight quarters, Expion360 Inc.'s revenue compounded faster (51.1% CAGR vs -4.3%).

Boston Scientific Corporation (BSC) is an American biotechnology and biomedical engineering firm and multinational manufacturer of medical devices used in interventional medical specialties, including interventional radiology, interventional cardiology, peripheral interventions, neuromodulation, neurovascular intervention, electrophysiology, cardiac surgery, vascular surgery, endoscopy, oncology, urology and gynecology.

Expion360 Inc. is a provider of high-performance lithium iron phosphate (LFP) battery solutions and supporting energy storage products. Its core customer segments cover recreational vehicle owners, marine users, off-grid lifestyle enthusiasts and residential users across the U.S. market, delivering safe, durable and low-carbon energy storage options.

MLSS vs XPON — Head-to-Head

Bigger by revenue
XPON
XPON
1.1× larger
XPON
$2.2M
$2.1M
MLSS
Growing faster (revenue YoY)
XPON
XPON
+9.6% gap
XPON
11.8%
2.2%
MLSS
Higher net margin
MLSS
MLSS
146.9% more per $
MLSS
-53.0%
-199.9%
XPON
Faster 2-yr revenue CAGR
XPON
XPON
Annualised
XPON
51.1%
-4.3%
MLSS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MLSS
MLSS
XPON
XPON
Revenue
$2.1M
$2.2M
Net Profit
$-1.1M
$-4.4M
Gross Margin
73.0%
-14.8%
Operating Margin
-52.5%
-234.4%
Net Margin
-53.0%
-199.9%
Revenue YoY
2.2%
11.8%
Net Profit YoY
46.4%
-1663.2%
EPS (diluted)
$-0.45

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
MLSS
MLSS
XPON
XPON
Q4 25
$2.1M
$2.2M
Q3 25
$2.4M
$2.4M
Q2 25
$2.3M
$3.0M
Q1 25
$2.2M
$2.0M
Q4 24
$2.0M
$2.0M
Q3 24
$2.5M
$1.4M
Q2 24
$1.9M
$1.3M
Q1 24
$2.2M
$971.9K
Net Profit
MLSS
MLSS
XPON
XPON
Q4 25
$-1.1M
$-4.4M
Q3 25
$-1.2M
$722.8K
Q2 25
$-1.5M
$-1.4M
Q1 25
$-2.0M
$-1.2M
Q4 24
$-2.0M
$-251.6K
Q3 24
$-1.5M
$-8.8M
Q2 24
$223.6K
$-2.2M
Q1 24
$-1.4M
$-2.2M
Gross Margin
MLSS
MLSS
XPON
XPON
Q4 25
73.0%
-14.8%
Q3 25
69.5%
22.7%
Q2 25
69.6%
20.8%
Q1 25
73.8%
24.5%
Q4 24
75.0%
22.1%
Q3 24
73.0%
12.1%
Q2 24
76.1%
25.5%
Q1 24
74.5%
22.9%
Operating Margin
MLSS
MLSS
XPON
XPON
Q4 25
-52.5%
-234.4%
Q3 25
-48.1%
-125.4%
Q2 25
-63.9%
-45.2%
Q1 25
-89.5%
-56.0%
Q4 24
-101.4%
-59.5%
Q3 24
-58.4%
-138.7%
Q2 24
-96.0%
-131.4%
Q1 24
-65.1%
-202.4%
Net Margin
MLSS
MLSS
XPON
XPON
Q4 25
-53.0%
-199.9%
Q3 25
-48.9%
30.2%
Q2 25
-63.8%
-45.8%
Q1 25
-89.3%
-56.2%
Q4 24
-101.1%
-12.7%
Q3 24
-58.1%
-634.4%
Q2 24
12.1%
-173.7%
Q1 24
-64.1%
-225.6%
EPS (diluted)
MLSS
MLSS
XPON
XPON
Q4 25
$-0.45
Q3 25
$-0.01
$0.10
Q2 25
$-0.41
Q1 25
$-0.37
Q4 24
$65.02
Q3 24
$-0.02
$-24.55
Q2 24
$-30.20
Q1 24
$-31.30

Balance Sheet & Financial Strength

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

Metric
MLSS
MLSS
XPON
XPON
Cash + ST InvestmentsLiquidity on hand
$1.1M
$3.0M
Total DebtLower is stronger
$197.2K
Stockholders' EquityBook value
$2.8M
$6.5M
Total Assets
$7.8M
$8.1M
Debt / EquityLower = less leverage
0.03×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MLSS
MLSS
XPON
XPON
Q4 25
$1.1M
$3.0M
Q3 25
$1.3M
$4.3M
Q2 25
$1.3M
$684.9K
Q1 25
$2.2M
$1.1M
Q4 24
$3.3M
$547.6K
Q3 24
$4.8M
$3.3M
Q2 24
$5.8M
$902.3K
Q1 24
$5.0M
$2.3M
Total Debt
MLSS
MLSS
XPON
XPON
Q4 25
$197.2K
Q3 25
$205.6K
Q2 25
$213.6K
Q1 25
$221.8K
Q4 24
$230.2K
Q3 24
$239.9K
Q2 24
$247.7K
Q1 24
$255.4K
Stockholders' Equity
MLSS
MLSS
XPON
XPON
Q4 25
$2.8M
$6.5M
Q3 25
$2.5M
$9.0M
Q2 25
$3.3M
$2.1M
Q1 25
$4.5M
$3.2M
Q4 24
$5.8M
$2.5M
Q3 24
$7.2M
$2.5M
Q2 24
$8.0M
$2.5M
Q1 24
$7.5M
$3.7M
Total Assets
MLSS
MLSS
XPON
XPON
Q4 25
$7.8M
$8.1M
Q3 25
$8.5M
$10.7M
Q2 25
$8.1M
$8.6M
Q1 25
$9.1M
$9.2M
Q4 24
$9.8M
$9.1M
Q3 24
$11.2M
$10.1M
Q2 24
$12.0M
$8.8M
Q1 24
$11.4M
$10.0M
Debt / Equity
MLSS
MLSS
XPON
XPON
Q4 25
0.03×
Q3 25
0.02×
Q2 25
0.10×
Q1 25
0.07×
Q4 24
0.09×
Q3 24
0.09×
Q2 24
0.10×
Q1 24
0.07×

Cash Flow & Capital Efficiency

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

Metric
MLSS
MLSS
XPON
XPON
Operating Cash FlowLast quarter
$-226.1K
$-2.4M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MLSS
MLSS
XPON
XPON
Q4 25
$-226.1K
$-2.4M
Q3 25
$81.8K
$-2.1M
Q2 25
$-1.8M
$-401.0K
Q1 25
$-1.0M
$-1.2M
Q4 24
$-1.5M
$-2.9M
Q3 24
$-973.9K
$-3.2M
Q2 24
$783.7K
$-1.7M
Q1 24
$-1.2M
$-1.7M
Free Cash Flow
MLSS
MLSS
XPON
XPON
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
$-1.7M
FCF Margin
MLSS
MLSS
XPON
XPON
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
-173.1%
Capex Intensity
MLSS
MLSS
XPON
XPON
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
1.1%
Cash Conversion
MLSS
MLSS
XPON
XPON
Q4 25
Q3 25
-2.90×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
3.50×
Q1 24

Financial Flow Comparison

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

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