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Side-by-side financial comparison of KOPIN CORP (KOPN) and SUTRO BIOPHARMA, INC. (STRO). Click either name above to swap in a different company.

SUTRO BIOPHARMA, INC. is the larger business by last-quarter revenue ($11.6M vs $8.4M, roughly 1.4× KOPIN CORP). On growth, SUTRO BIOPHARMA, INC. posted the faster year-over-year revenue change (-21.4% vs -42.9%). Over the past eight quarters, SUTRO BIOPHARMA, INC.'s revenue compounded faster (-5.4% CAGR vs -8.7%).

The Kopin Corporation is a Westborough, Massachusetts-based electronics manufacturer, best known for its microdisplay devices and application specific optical solutions for defense, enterprise, medical and consumer mobile electronics.

Sutro Biopharma, Inc. is a publicly traded biotechnology company headquartered in South San Francisco, California focused on clinical-stage drug discovery, development and manufacturing. Using a proprietary cell-free protein synthesis platform, Sutro is working on oncology therapeutics using protein engineering and rational design. Founded in 2003 under the name Fundamental Applied Biology, the company name changed to Sutro Biopharma in 2009. William Newell, CEO as of 2024, joined Sutro in Ja...

KOPN vs STRO — Head-to-Head

Bigger by revenue
STRO
STRO
1.4× larger
STRO
$11.6M
$8.4M
KOPN
Growing faster (revenue YoY)
STRO
STRO
+21.5% gap
STRO
-21.4%
-42.9%
KOPN
Faster 2-yr revenue CAGR
STRO
STRO
Annualised
STRO
-5.4%
-8.7%
KOPN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
KOPN
KOPN
STRO
STRO
Revenue
$8.4M
$11.6M
Net Profit
$6.8M
Gross Margin
Operating Margin
-60.0%
Net Margin
81.3%
Revenue YoY
-42.9%
-21.4%
Net Profit YoY
449.5%
35.4%
EPS (diluted)
$0.04

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
KOPN
KOPN
STRO
STRO
Q4 25
$8.4M
$11.6M
Q3 25
$12.0M
$9.7M
Q2 25
$8.5M
$63.7M
Q1 25
$10.5M
$17.4M
Q4 24
$14.6M
$14.8M
Q3 24
$13.3M
$8.5M
Q2 24
$12.3M
$25.7M
Q1 24
$10.0M
$13.0M
Net Profit
KOPN
KOPN
STRO
STRO
Q4 25
$6.8M
Q3 25
$4.1M
$-56.9M
Q2 25
$-5.2M
$-11.5M
Q1 25
$-3.1M
$-76.0M
Q4 24
$-1.9M
$-72.4M
Q3 24
$-3.5M
$-48.8M
Q2 24
$-5.9M
$-48.0M
Q1 24
$-32.5M
$-58.2M
Operating Margin
KOPN
KOPN
STRO
STRO
Q4 25
-60.0%
Q3 25
37.9%
-499.9%
Q2 25
-64.6%
-5.2%
Q1 25
-37.1%
-393.8%
Q4 24
-15.1%
-440.7%
Q3 24
-21.0%
-797.2%
Q2 24
-44.2%
-189.4%
Q1 24
-325.4%
-435.0%
Net Margin
KOPN
KOPN
STRO
STRO
Q4 25
81.3%
Q3 25
34.1%
-586.6%
Q2 25
-61.1%
-18.0%
Q1 25
-29.5%
-436.6%
Q4 24
-13.3%
-489.2%
Q3 24
-26.0%
-572.6%
Q2 24
-48.0%
-186.8%
Q1 24
-324.4%
-447.5%
EPS (diluted)
KOPN
KOPN
STRO
STRO
Q4 25
$0.04
Q3 25
$0.02
$-0.67
Q2 25
$-0.03
$-0.14
Q1 25
$-0.02
$-0.91
Q4 24
$0.02
$-27.63
Q3 24
$-0.03
$-0.59
Q2 24
$-0.05
$-0.59
Q1 24
$-0.27
$-0.59

Balance Sheet & Financial Strength

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

Metric
KOPN
KOPN
STRO
STRO
Cash + ST InvestmentsLiquidity on hand
$36.4M
$141.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$64.1M
$-132.5M
Total Assets
$108.4M
$173.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KOPN
KOPN
STRO
STRO
Q4 25
$36.4M
$141.4M
Q3 25
$26.5M
$167.6M
Q2 25
$26.8M
$205.1M
Q1 25
$31.5M
$249.0M
Q4 24
$35.6M
$316.9M
Q3 24
$36.2M
$388.3M
Q2 24
$17.6M
$375.6M
Q1 24
$21.1M
$267.6M
Stockholders' Equity
KOPN
KOPN
STRO
STRO
Q4 25
$64.1M
$-132.5M
Q3 25
$21.3M
$-87.3M
Q2 25
$16.0M
$-32.1M
Q1 25
$20.7M
$-25.8M
Q4 24
$23.3M
$44.6M
Q3 24
$22.7M
$111.2M
Q2 24
$-216.3K
$152.2M
Q1 24
$4.9M
$98.0M
Total Assets
KOPN
KOPN
STRO
STRO
Q4 25
$108.4M
$173.8M
Q3 25
$61.2M
$209.7M
Q2 25
$61.2M
$262.4M
Q1 25
$65.0M
$321.4M
Q4 24
$70.8M
$387.2M
Q3 24
$70.6M
$451.8M
Q2 24
$49.0M
$489.0M
Q1 24
$51.3M
$403.4M

Cash Flow & Capital Efficiency

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

Metric
KOPN
KOPN
STRO
STRO
Operating Cash FlowLast quarter
$-7.9M
$-177.2M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
-1.15×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KOPN
KOPN
STRO
STRO
Q4 25
$-7.9M
$-177.2M
Q3 25
$-110.4K
$-38.2M
Q2 25
$-4.2M
$-44.7M
Q1 25
$-3.4M
$-67.9M
Q4 24
$-1.6M
$-71.7M
Q3 24
$-6.5M
$-64.5M
Q2 24
$-3.1M
$9.5M
Q1 24
$-3.1M
$-64.7M
Free Cash Flow
KOPN
KOPN
STRO
STRO
Q4 25
Q3 25
Q2 25
$-4.9M
Q1 25
$-3.9M
Q4 24
$-2.1M
Q3 24
$-6.5M
Q2 24
$-3.1M
Q1 24
$-3.4M
FCF Margin
KOPN
KOPN
STRO
STRO
Q4 25
Q3 25
Q2 25
-57.9%
Q1 25
-37.1%
Q4 24
-14.2%
Q3 24
-48.6%
Q2 24
-25.5%
Q1 24
-33.4%
Capex Intensity
KOPN
KOPN
STRO
STRO
Q4 25
Q3 25
Q2 25
8.7%
Q1 25
4.7%
Q4 24
3.4%
Q3 24
0.1%
Q2 24
0.5%
Q1 24
2.4%
Cash Conversion
KOPN
KOPN
STRO
STRO
Q4 25
-1.15×
Q3 25
-0.03×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

KOPN
KOPN

Net Product Revenues$5.6M67%
Other$2.7M33%

STRO
STRO

Segment breakdown not available.

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