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Guillemot Corporation S.A.

GUI.PA
18
Computer Hardware · Technology
Exchange
Euronext Paris
Winston Score
18
Winston is worried
Weak fundamentals across most pillars.
Data as of Aug 23, 2026 · filings through Dec 31, 2025
How the score breaks down
Quality
Weak
Growth
Weak
Cash Flow
Weak
Stability
Good
Valuation
Data not available

Winston Score History

The full picture

Guillemot Corporation is a French company that makes gaming accessories and hardware. Its most well-known brand is Thrustmaster, which produces joysticks, racing wheels, and game controllers used by video game players at home. It also owns the Hercules brand, which sells audio equipment and DJ controllers for music enthusiasts.

The company earns money by selling physical hardware products through retailers and online stores, primarily in Europe but also in North America and other markets. With a market cap of around $0.1 billion, Guillemot is a small player in a competitive industry dominated by much larger companies like Logitech and Razer. Its thin margins — roughly 9% gross and near-zero operating margin — highlight the main risk: the company has little pricing power and must compete on product design and brand loyalty in a market where consumers have many choices. Demand for its products is closely tied to the overall health of the gaming industry and console upgrade cycles.

Growth Profile

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

Revenue Growth

+9.3% YoY

YoY Growth Rate

Slow revenue growth

EPS Growth

+188.2% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

42.3%ownership

Flat

Insider ownership roughly steady over the past year

Cash Runway

~3 years

€27M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

€27M cash & investments at current burn rate

Growth context

Guillemot Corporation S.A. is growing revenue at 9% 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

Every number that matters to educated investors.

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Quality

Profit per sale
Gross Margin
14.0%
Thin — 14.0% gross margin
Profit after running costs
Operating Margin
4.2%
Thin — 4.2% operating margin
Return on the money invested
ROCE
0.5%
Weak — 0.5% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales growth
Sales YoY
+1.7%
Nearly flat sales (+1.7% YoY)
Profit growth
EPS YoY
-294.1%
Earnings shrinking (-294.1% YoY)

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

How steady the profit is
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash
Cash Conversion
N/A
Data not available
Spare cash per sale
FCF Margin
0.3%
Thin free cash flow (0.3%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

What it owes vs what it owns
Debt / Equity
0.04
Conservative — low debt load (0.04)
Covers its interest
Interest Cover
0.12x
Dangerous — barely covers interest (0.1x)

Interest coverage below 1. Their profits don't cover the interest bill.

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Valuation

Price vs profit
P/E Ratio (TTM)
N/M
no trend
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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