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ADC Therapeutics S.A.

ADCT
24
Biotechnology · Healthcare
Price
$1.35
+0.00 (+0.00%)
Market Cap
$171.7M
Winston Score
24
Winston is worried
Weak fundamentals across most pillars.

Share count rising — dilution

+65.6% over 4y

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

Diluted shares outstanding: 76.7M (2021) → 127.1M (2025)

ADC Therapeutics is a Swiss biotech company that develops cancer-fighting drugs called antibody-drug conjugates, or ADCs. These are medicines that work like guided missiles — they attach to cancer cells and deliver a toxic payload directly to them, leaving healthy cells mostly alone. The company's main approved product is Zynlonta, a treatment for certain types of blood cancer called B-cell lymphoma, sold primarily to oncologists and hospitals in the United States.

The company makes money by selling Zynlonta to healthcare providers, and it also earns fees by licensing its ADC technology to other pharmaceutical companies. ADC Therapeutics operates mainly in the U.S. and Europe, and with a market cap around $400 million, it is a small player in a competitive field. The deep operating losses reflect heavy spending on research and clinical trials, and the key risk is whether the company can expand Zynlonta's approved uses fast enough to reach profitability before needing to raise more cash.

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

-9.5% YoY

YoY Growth Rate

Revenue declining

EPS Growth

+41.7% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$104M/ year

Declining (-5% vs prior year)

127.8% of revenue

7.1x the sector average (18%)

R&D spend declining — could signal cost-cutting or efficiency

Insider Activity

23.4%ownership

Flat

Insiders holding steady — not selling despite ability to

Cash Runway

~23 months

$231M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Adequate runway but may need to raise capital within 2 years

Revenue declining

ADC Therapeutics S.A.'s revenue is actually shrinking. In a growth stock, that removes the core investment thesis. The low Winston Score here may be warranted — unless there's a turnaround story.

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
82.7%
Premium pricing power — 82.7% gross margin
Operating Margin
-121.1%
Losing money on operations — -121.1%
ROCE
-12.3%
Weak — -12.3% return on capital

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

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Growth

Sales YoY
+4.4%
Slow sales growth (4.4% 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
-144.7%
Burning cash (-144.7%)

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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