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CleanSpark

CLSK
21
Asset Management - Cryptocurrency · Financial Services
Price
$11.98
-0.62 (-4.92%)
Market Cap
$3.07B
Exchange
NASDAQ
Winston Score
21
Winston is worried
Weak fundamentals across most pillars.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Weak
Growth
Mixed
Cash Flow
Weak
Stability
Good
Valuation
Data not available

Share count rising — dilution

+979.3% over 4y

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

Diluted shares outstanding: 29.4M (2021) → 317.8M (2025)

Winston Score History

The full picture

CleanSpark is a Bitcoin mining company. It uses large warehouses full of specialized computers to solve complex math problems, which earns the company newly created Bitcoin as a reward. It operates entirely in the United States, with mining facilities spread across states like Georgia, Wyoming, and Mississippi.

CleanSpark makes money by accumulating Bitcoin through mining and then selling it on the open market. The company has grown quickly by acquiring and building out data centers, making it one of the larger publicly traded Bitcoin miners in the US. Its financial performance is closely tied to the price of Bitcoin and the cost of electricity — when Bitcoin prices fall or energy costs rise, profits shrink fast. The main risk the business faces is that Bitcoin mining gets harder over time as more miners compete, and the periodic "halving" events cut the Bitcoin reward in half, squeezing margins unless Bitcoin's price rises enough to compensate.

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Growth Profile

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

Revenue Growth

-30.5% YoY

YoY Growth Rate

Revenue declining

EPS Growth

-100.0% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$0/ year

0.0% of revenue

Below sector average (7%)

Research and development spending

Insider Activity

4.0%ownership

Flat

Insider ownership roughly steady over the past year

Cash Runway

~1 months

$203M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Short runway — potential dilution ahead through share issuance

Cash watch

CleanSpark has less than a year of cash at its current burn rate. Growth investors should watch for potential share dilution from future fundraising — that directly reduces your ownership.

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

Every number that matters to educated investors.

Each metric is explained in plain language so you know exactly what you're looking at. Start your free trial now.

Quality

Profit per sale
Gross Margin
38.1%
Modest — 38.1% gross margin
Profit after running costs
Operating Margin
-168.4%
Losing money on operations — -168.4%
Return on the money invested
ROCE
-86.4%
Weak — -86.4% return on capital

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

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Growth

Sales growth
Sales YoY
+7.5%
Steady sales growth (+7.5% YoY)
Profit growth
EPS YoY
-382.6%
Earnings shrinking (-382.6% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is
EPS Consistency
3/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash
Cash Conversion
N/A
Data not available
Spare cash per sale
FCF Margin
-212.3%
Burning cash (-212.3%)

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

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Stability

What it owes vs what it owns
Debt / Equity
0.00
Conservative — low debt load (0.00)
Covers its interest
Interest Cover
N/A
Data not available

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Valuation

Price vs profit
P/E Ratio (TTM)
N/M
Negative earnings — P/E not meaningful
Cheaper or dearer next year
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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