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Side-by-side financial comparison of Eton Pharmaceuticals, Inc. (ETON) and LIGHTPATH TECHNOLOGIES INC (LPTH). Click either name above to swap in a different company.

Eton Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($21.3M vs $16.4M, roughly 1.3× LIGHTPATH TECHNOLOGIES INC). Eton Pharmaceuticals, Inc. runs the higher net margin — 7.0% vs -57.5%, a 64.5% gap on every dollar of revenue. On growth, LIGHTPATH TECHNOLOGIES INC posted the faster year-over-year revenue change (120.2% vs 82.7%). LIGHTPATH TECHNOLOGIES INC produced more free cash flow last quarter ($2.0M vs $-11.6M). Over the past eight quarters, Eton Pharmaceuticals, Inc.'s revenue compounded faster (63.4% CAGR vs 45.7%).

Eton Pharmaceuticals, Inc. is a specialty pharmaceutical firm focused on developing and commercializing innovative therapies for rare diseases, pediatric care and hospital care segments. It mainly operates in the U.S. market, partnering with medical stakeholders to deliver accessible high-quality treatments to underserved patients.

LightPath Technologies Inc designs, manufactures and distributes high-precision optical components and assemblies, including aspheric lenses, infrared optics, and fiber optic products. It serves global clients across industrial automation, aerospace, defense, medical imaging, and telecommunications sectors.

ETON vs LPTH — Head-to-Head

Bigger by revenue
ETON
ETON
1.3× larger
ETON
$21.3M
$16.4M
LPTH
Growing faster (revenue YoY)
LPTH
LPTH
+37.5% gap
LPTH
120.2%
82.7%
ETON
Higher net margin
ETON
ETON
64.5% more per $
ETON
7.0%
-57.5%
LPTH
More free cash flow
LPTH
LPTH
$13.6M more FCF
LPTH
$2.0M
$-11.6M
ETON
Faster 2-yr revenue CAGR
ETON
ETON
Annualised
ETON
63.4%
45.7%
LPTH

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
ETON
ETON
LPTH
LPTH
Revenue
$21.3M
$16.4M
Net Profit
$1.5M
$-9.4M
Gross Margin
61.6%
36.8%
Operating Margin
11.6%
-52.6%
Net Margin
7.0%
-57.5%
Revenue YoY
82.7%
120.2%
Net Profit YoY
348.0%
-260.1%
EPS (diluted)
$-0.20

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
ETON
ETON
LPTH
LPTH
Q4 25
$21.3M
$16.4M
Q3 25
$22.5M
$15.1M
Q2 25
$18.9M
$12.2M
Q1 25
$17.3M
$9.2M
Q4 24
$11.6M
$7.4M
Q3 24
$10.3M
$8.4M
Q2 24
$9.1M
$8.6M
Q1 24
$8.0M
$7.7M
Net Profit
ETON
ETON
LPTH
LPTH
Q4 25
$1.5M
$-9.4M
Q3 25
$-1.9M
$-2.9M
Q2 25
$-2.6M
$-7.1M
Q1 25
$-1.6M
$-3.6M
Q4 24
$-598.0K
$-2.6M
Q3 24
$627.0K
$-1.6M
Q2 24
$-3.0M
$-2.4M
Q1 24
$-811.0K
$-2.6M
Gross Margin
ETON
ETON
LPTH
LPTH
Q4 25
61.6%
36.8%
Q3 25
35.0%
29.8%
Q2 25
63.0%
22.0%
Q1 25
57.1%
29.1%
Q4 24
55.6%
26.0%
Q3 24
61.0%
33.9%
Q2 24
62.0%
29.2%
Q1 24
62.9%
20.9%
Operating Margin
ETON
ETON
LPTH
LPTH
Q4 25
11.6%
-52.6%
Q3 25
-6.1%
-16.6%
Q2 25
-7.8%
-38.0%
Q1 25
-2.7%
-36.3%
Q4 24
5.4%
-33.5%
Q3 24
4.9%
-16.4%
Q2 24
-32.3%
-25.6%
Q1 24
-10.0%
-33.6%
Net Margin
ETON
ETON
LPTH
LPTH
Q4 25
7.0%
-57.5%
Q3 25
-8.6%
-19.2%
Q2 25
-13.7%
-57.8%
Q1 25
-9.1%
-39.1%
Q4 24
-5.1%
-35.2%
Q3 24
6.1%
-19.3%
Q2 24
-33.5%
-27.3%
Q1 24
-10.2%
-33.7%
EPS (diluted)
ETON
ETON
LPTH
LPTH
Q4 25
$-0.20
Q3 25
$-0.07
$-0.07
Q2 25
$0.19
Q1 25
$-0.44
Q4 24
$-0.07
Q3 24
$0.02
$-0.04
Q2 24
$-0.12
$-0.15
Q1 24
$-0.03
$-0.07

Balance Sheet & Financial Strength

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

Metric
ETON
ETON
LPTH
LPTH
Cash + ST InvestmentsLiquidity on hand
$25.9M
$73.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$26.2M
$77.9M
Total Assets
$92.1M
$148.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ETON
ETON
LPTH
LPTH
Q4 25
$25.9M
$73.6M
Q3 25
$37.1M
Q2 25
$25.4M
$4.9M
Q1 25
$17.4M
Q4 24
$14.9M
Q3 24
$20.3M
Q2 24
$17.7M
Q1 24
$16.7M
Total Debt
ETON
ETON
LPTH
LPTH
Q4 25
Q3 25
Q2 25
Q1 25
$30.0M
Q4 24
$29.8M
Q3 24
Q2 24
$535.0K
Q1 24
$599.4K
Stockholders' Equity
ETON
ETON
LPTH
LPTH
Q4 25
$26.2M
$77.9M
Q3 25
$23.1M
$21.4M
Q2 25
$24.0M
$15.6M
Q1 25
$24.4M
$15.7M
Q4 24
$24.4M
$26.7M
Q3 24
$16.0M
$29.4M
Q2 24
$13.5M
$30.2M
Q1 24
$15.5M
$31.7M
Total Assets
ETON
ETON
LPTH
LPTH
Q4 25
$92.1M
$148.6M
Q3 25
$104.5M
$87.3M
Q2 25
$101.7M
$81.5M
Q1 25
$84.0M
$81.4M
Q4 24
$76.1M
$45.8M
Q3 24
$35.8M
$48.4M
Q2 24
$31.8M
$48.1M
Q1 24
$30.8M
$49.7M
Debt / Equity
ETON
ETON
LPTH
LPTH
Q4 25
Q3 25
Q2 25
Q1 25
1.23×
Q4 24
1.22×
Q3 24
Q2 24
0.02×
Q1 24
0.02×

Cash Flow & Capital Efficiency

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

Metric
ETON
ETON
LPTH
LPTH
Operating Cash FlowLast quarter
$-11.6M
$2.8M
Free Cash FlowOCF − Capex
$-11.6M
$2.0M
FCF MarginFCF / Revenue
-54.5%
12.0%
Capex IntensityCapex / Revenue
0.2%
5.3%
Cash ConversionOCF / Net Profit
-7.79×
TTM Free Cash FlowTrailing 4 quarters
$-6.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ETON
ETON
LPTH
LPTH
Q4 25
$-11.6M
$2.8M
Q3 25
$12.0M
$-1.1M
Q2 25
$8.0M
$-2.6M
Q1 25
$2.1M
$-3.2M
Q4 24
$-765.0K
$-737.4K
Q3 24
$3.0M
$-1.7M
Q2 24
$1.3M
$64.7K
Q1 24
$-2.5M
$-394.2K
Free Cash Flow
ETON
ETON
LPTH
LPTH
Q4 25
$-11.6M
$2.0M
Q3 25
$11.7M
$-1.2M
Q2 25
$-3.3M
Q1 25
$-3.7M
Q4 24
$-777.0K
$-817.8K
Q3 24
$-1.8M
Q2 24
$-225.5K
Q1 24
$-2.5M
$-802.5K
FCF Margin
ETON
ETON
LPTH
LPTH
Q4 25
-54.5%
12.0%
Q3 25
52.3%
-8.1%
Q2 25
-27.3%
Q1 25
-40.0%
Q4 24
-6.7%
-11.0%
Q3 24
-21.2%
Q2 24
-2.6%
Q1 24
-31.2%
-10.4%
Capex Intensity
ETON
ETON
LPTH
LPTH
Q4 25
0.2%
5.3%
Q3 25
1.3%
0.5%
Q2 25
0.0%
5.6%
Q1 25
0.0%
4.6%
Q4 24
0.1%
1.1%
Q3 24
0.0%
0.9%
Q2 24
0.0%
3.4%
Q1 24
0.2%
5.3%
Cash Conversion
ETON
ETON
LPTH
LPTH
Q4 25
-7.79×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
4.71×
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

ETON
ETON

Segment breakdown not available.

LPTH
LPTH

Other$7.9M48%
Infrared Components$5.0M31%
Visible Components$3.4M21%

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