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Ondine Biomedical

OBI.L
28
Biotechnology · Healthcare
Price
13.50 GBp
-0.40 (-2.88%)
Market Cap
59.5M GBp
Exchange
London Stock Exchange
Winston Score
28
Winston is worried
Below-average fundamentals — multiple weak pillars.
Data as of Jul 28, 2026 · filings through Dec 31, 2025

Share count rising — dilution

+139.0% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 194.6M (2021) → 465.1M (2025)

Ondine Biomedical is a small Canadian biotechnology company focused on using light-based technology to fight infections. Its main product is a treatment called photodisinfection, which uses a light-activated drug to kill bacteria, viruses, and fungi inside the nose and throat. The company targets hospitals, clinics, and healthcare systems looking for new ways to prevent infections that are resistant to antibiotics.

Ondine makes money by selling its photodisinfection system, which includes a device and single-use applicators, to healthcare providers. It operates primarily in Canada and the United Kingdom, where it has received regulatory clearances, and is working to expand into other markets. The company is still early-stage, which explains its deeply negative operating margin — it is spending far more than it earns. The key growth driver is broader adoption of its technology as antibiotic-resistant infections become a growing global health problem, but the main risk is that it may struggle to scale sales and reach profitability before needing additional funding.

Winston Score History

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+35.3% YoY

YoY Growth Rate

Strong revenue growth

EPS Growth

+8.7% YoY

YoY Growth Rate

Slow EPS growth

R&D Spend

$21M/ year

Rising (+131% vs prior year)

802.3% of revenue

44.6x the sector average (18%)

Investing heavily in future products and technology

Insider Activity

28.3%ownership

Insiders own a meaningful stake in the company

Cash Runway

~2 months

$11M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Short runway — potential dilution ahead through share issuance

Strong grower

Ondine Biomedical is growing revenue at 35% year-over-year. The Winston Score penalises unprofitable companies, but revenue at this pace tells a different story — this is a company still in "build mode."

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

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Quality

Gross Margin
43.8%
Healthy — 43.8% gross margin
Operating Margin
-1068.4%
Losing money on operations — -1068.4%
ROCE
-456.5%
Weak — -456.5% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales YoY
+29.0%
Fast-growing sales (29.0% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
0/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion
N/A
Data not available
FCF Margin
-901.0%
Burning cash (-901.0%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

Debt / Equity
0.09
Conservative — low debt load (0.09)
Interest Cover
N/A
Data not available

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Valuation

P/E Ratio (TTM)
N/M
Negative earnings — P/E not meaningful
P/E vs Forward
N/A
not available
Data not available

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Dividends

Not applicable for this business.
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