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Side-by-side financial comparison of LIGHTPATH TECHNOLOGIES INC (LPTH) and RAPID MICRO BIOSYSTEMS, INC. (RPID). Click either name above to swap in a different company.

LIGHTPATH TECHNOLOGIES INC is the larger business by last-quarter revenue ($16.4M vs $11.3M, roughly 1.4× RAPID MICRO BIOSYSTEMS, INC.). LIGHTPATH TECHNOLOGIES INC runs the higher net margin — -57.5% vs -110.8%, a 53.2% gap on every dollar of revenue. On growth, LIGHTPATH TECHNOLOGIES INC posted the faster year-over-year revenue change (120.2% vs 37.3%). LIGHTPATH TECHNOLOGIES INC produced more free cash flow last quarter ($2.0M vs $-3.3M). Over the past eight quarters, LIGHTPATH TECHNOLOGIES INC's revenue compounded faster (45.7% CAGR vs 41.8%).

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.

Rapid Micro Biosystems, Inc. develops and manufactures automated microbial detection and quality control solutions for the life sciences industry. Its core products serve biopharmaceutical manufacturers, contract development and manufacturing organizations, operating across key global markets including North America, Europe and Asia-Pacific, helping clients cut testing timelines and improve operational efficiency.

LPTH vs RPID — Head-to-Head

Bigger by revenue
LPTH
LPTH
1.4× larger
LPTH
$16.4M
$11.3M
RPID
Growing faster (revenue YoY)
LPTH
LPTH
+82.9% gap
LPTH
120.2%
37.3%
RPID
Higher net margin
LPTH
LPTH
53.2% more per $
LPTH
-57.5%
-110.8%
RPID
More free cash flow
LPTH
LPTH
$5.3M more FCF
LPTH
$2.0M
$-3.3M
RPID
Faster 2-yr revenue CAGR
LPTH
LPTH
Annualised
LPTH
45.7%
41.8%
RPID

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
LPTH
LPTH
RPID
RPID
Revenue
$16.4M
$11.3M
Net Profit
$-9.4M
$-12.5M
Gross Margin
36.8%
Operating Margin
-52.6%
-108.2%
Net Margin
-57.5%
-110.8%
Revenue YoY
120.2%
37.3%
Net Profit YoY
-260.1%
-29.3%
EPS (diluted)
$-0.20
$-0.26

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
LPTH
LPTH
RPID
RPID
Q4 25
$16.4M
$11.3M
Q3 25
$15.1M
$7.8M
Q2 25
$12.2M
$7.3M
Q1 25
$9.2M
$7.2M
Q4 24
$7.4M
$8.2M
Q3 24
$8.4M
$7.6M
Q2 24
$8.6M
$6.6M
Q1 24
$7.7M
$5.6M
Net Profit
LPTH
LPTH
RPID
RPID
Q4 25
$-9.4M
$-12.5M
Q3 25
$-2.9M
$-11.5M
Q2 25
$-7.1M
$-11.9M
Q1 25
$-3.6M
$-11.3M
Q4 24
$-2.6M
$-9.7M
Q3 24
$-1.6M
$-11.3M
Q2 24
$-2.4M
$-12.6M
Q1 24
$-2.6M
$-13.3M
Gross Margin
LPTH
LPTH
RPID
RPID
Q4 25
36.8%
Q3 25
29.8%
Q2 25
22.0%
Q1 25
29.1%
Q4 24
26.0%
Q3 24
33.9%
Q2 24
29.2%
Q1 24
20.9%
Operating Margin
LPTH
LPTH
RPID
RPID
Q4 25
-52.6%
-108.2%
Q3 25
-16.6%
-145.1%
Q2 25
-38.0%
-167.3%
Q1 25
-36.3%
-161.8%
Q4 24
-33.5%
-124.5%
Q3 24
-16.4%
-158.3%
Q2 24
-25.6%
-202.1%
Q1 24
-33.6%
-254.4%
Net Margin
LPTH
LPTH
RPID
RPID
Q4 25
-57.5%
-110.8%
Q3 25
-19.2%
-146.8%
Q2 25
-57.8%
-163.3%
Q1 25
-39.1%
-156.3%
Q4 24
-35.2%
-117.6%
Q3 24
-19.3%
-148.9%
Q2 24
-27.3%
-190.1%
Q1 24
-33.7%
-237.4%
EPS (diluted)
LPTH
LPTH
RPID
RPID
Q4 25
$-0.20
$-0.26
Q3 25
$-0.07
$-0.26
Q2 25
$0.19
$-0.27
Q1 25
$-0.44
$-0.26
Q4 24
$-0.07
$-0.22
Q3 24
$-0.04
$-0.26
Q2 24
$-0.15
$-0.29
Q1 24
$-0.07
$-0.31

Balance Sheet & Financial Strength

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

Metric
LPTH
LPTH
RPID
RPID
Cash + ST InvestmentsLiquidity on hand
$73.6M
$20.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$77.9M
$33.2M
Total Assets
$148.6M
$74.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
LPTH
LPTH
RPID
RPID
Q4 25
$73.6M
$20.0M
Q3 25
$18.9M
Q2 25
$4.9M
$18.3M
Q1 25
$18.9M
Q4 24
$16.9M
Q3 24
$22.0M
Q2 24
$37.1M
Q1 24
$22.4M
Total Debt
LPTH
LPTH
RPID
RPID
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
$535.0K
Q1 24
$599.4K
Stockholders' Equity
LPTH
LPTH
RPID
RPID
Q4 25
$77.9M
$33.2M
Q3 25
$21.4M
$44.3M
Q2 25
$15.6M
$54.5M
Q1 25
$15.7M
$65.5M
Q4 24
$26.7M
$75.4M
Q3 24
$29.4M
$84.4M
Q2 24
$30.2M
$94.6M
Q1 24
$31.7M
$105.9M
Total Assets
LPTH
LPTH
RPID
RPID
Q4 25
$148.6M
$74.9M
Q3 25
$87.3M
$84.4M
Q2 25
$81.5M
$75.6M
Q1 25
$81.4M
$85.4M
Q4 24
$45.8M
$98.2M
Q3 24
$48.4M
$105.8M
Q2 24
$48.1M
$117.1M
Q1 24
$49.7M
$127.7M
Debt / Equity
LPTH
LPTH
RPID
RPID
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
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
LPTH
LPTH
RPID
RPID
Operating Cash FlowLast quarter
$2.8M
$-3.2M
Free Cash FlowOCF − Capex
$2.0M
$-3.3M
FCF MarginFCF / Revenue
12.0%
-29.6%
Capex IntensityCapex / Revenue
5.3%
0.8%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-6.3M
$-31.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
LPTH
LPTH
RPID
RPID
Q4 25
$2.8M
$-3.2M
Q3 25
$-1.1M
$-9.1M
Q2 25
$-2.6M
$-9.7M
Q1 25
$-3.2M
$-9.1M
Q4 24
$-737.4K
$-9.9M
Q3 24
$-1.7M
$-8.6M
Q2 24
$64.7K
$-10.1M
Q1 24
$-394.2K
$-15.5M
Free Cash Flow
LPTH
LPTH
RPID
RPID
Q4 25
$2.0M
$-3.3M
Q3 25
$-1.2M
$-9.1M
Q2 25
$-3.3M
$-10.1M
Q1 25
$-3.7M
$-9.4M
Q4 24
$-817.8K
$-10.0M
Q3 24
$-1.8M
$-8.8M
Q2 24
$-225.5K
$-10.6M
Q1 24
$-802.5K
$-16.1M
FCF Margin
LPTH
LPTH
RPID
RPID
Q4 25
12.0%
-29.6%
Q3 25
-8.1%
-116.4%
Q2 25
-27.3%
-138.6%
Q1 25
-40.0%
-130.2%
Q4 24
-11.0%
-121.8%
Q3 24
-21.2%
-116.0%
Q2 24
-2.6%
-159.8%
Q1 24
-10.4%
-287.1%
Capex Intensity
LPTH
LPTH
RPID
RPID
Q4 25
5.3%
0.8%
Q3 25
0.5%
0.9%
Q2 25
5.6%
5.0%
Q1 25
4.6%
4.4%
Q4 24
1.1%
1.2%
Q3 24
0.9%
2.9%
Q2 24
3.4%
6.9%
Q1 24
5.3%
10.4%

Financial Flow Comparison

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

Revenue Breakdown by Segment

LPTH
LPTH

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

RPID
RPID

Products$9.3M83%
Services$2.0M17%

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