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Butterfly Network logo

Butterfly Network

BFLY
25
Medical - Devices · Healthcare
Price
$6.62
-0.39 (-5.56%)
Market Cap
$1.73B
Winston Score
25
Winston is worried
Below-average fundamentals — multiple weak pillars.

Share count rising — dilution

+42.2% over 4y

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

Diluted shares outstanding: 173.8M (2021) → 247.1M (2025)

Butterfly Network makes a handheld ultrasound device called the Butterfly iQ. Traditional ultrasound machines are large, expensive, and found mostly in hospitals. Butterfly's device is about the size of a TV remote, plugs into a smartphone, and costs a fraction of what older machines cost. Doctors, nurses, and paramedics use it to see inside a patient's body quickly, almost anywhere.

The company sells the hardware device and charges a recurring software subscription fee for advanced features and cloud storage, which helps create steady repeat revenue. Butterfly sells primarily in the United States but also has a presence in Europe and other international markets. Its main competitive advantage is its proprietary semiconductor chip, which puts the entire ultrasound system on a single chip — something competitors have struggled to replicate. The biggest risk the company faces is its heavy cash burn, reflected in a deeply negative operating margin, meaning it must grow revenue significantly or raise more capital to reach profitability.

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

+25.0% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+17.0% YoY

YoY Growth Rate

Steady EPS growth

R&D Spend

$36M/ year

Flat (-4% vs prior year)

37.1% of revenue

2.1x the sector average (18%)

Steady R&D investment year-over-year

Insider Activity

26.5%ownership

Flat

Insiders holding steady — not selling despite ability to

Cash Runway

~2 years

$138M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

$138M cash & investments at current burn rate

Growth context

Butterfly Network is growing revenue at 25% year-over-year. The Winston Score measures business quality today — these growth metrics show what could matter tomorrow.

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
68.9%
Premium pricing power — 68.9% gross margin
Operating Margin
-50.8%
Losing money on operations — -50.8%
ROCE
-7.1%
Weak — -7.1% return on capital

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

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Growth

Sales YoY
+20.2%
Fast-growing sales (20.2% 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
-18.3%
Burning cash (-18.3%)

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

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Stability

Debt / Equity
N/A
Data not available
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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