Guillemot (XPAR:GUI) YoY EBITDA Growth: 88.29% (As of Dec. 2025)

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XPAR:GUI Guillemot Corp SA XPAR:GUI
82 GF Score
Price €4.50
GF Value €5.72
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Guillemot YoY EBITDA Growth?

Guillemot XPAR:GUI +4.17% 82 YoY EBITDA Growth is 88.29% as of Dec. 2025. GuruFocus rates XPAR:GUI with a GF Score™ of 82/100 and a GF Value™ of €5.72 (Modestly Undervalued). The stock has 4 warning signs investors should review.

YoY EBITDA Growth is the percentage change of EBITDA per Share over the past twelve months. Guillemot's YoY EBITDA Growth for the quarter that ended in Dec. 2025 was 88.29%.

Guillemot's EBITDA per Share for the six months ended in Dec. 2025 was €0.39.

Guillemot YoY EBITDA Growth Historical Data

* Premium members only.

The historical data trend for Guillemot's YoY EBITDA Growth can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Guillemot YoY EBITDA Growth Chart

Guillemot Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
YoY EBITDA Growth
Get a 7-Day Free Trial Premium Member Only Premium Member Only -37.80 56.91 -77.01 31.94 -46.92

Guillemot Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
YoY EBITDA Growth Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -4.23 857.38 -63.78 -108.23 88.29
XPAR:GUI
82GF Score
Guillemot Corp SA XPAR:GUI
YoY EBITDA Growth is just one metric. See GF Score™, valuation, warning signs, and more.
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Guillemot YoY EBITDA Growth Calculation

YoY EBITDA Growth is the percentage change of EBITDA per Share over the past twelve months.

Guillemot's YoY EBITDA Growth for the fiscal year that ended in Dec. 2025 is calculated as:

YoY EBITDA Growth (A: Dec. 2025 )
=(EBITDA per Share (A: Dec. 2025 )-EBITDA per Share (A: Dec. 2024 ))/ | EBITDA per Share (A: Dec. 2024 ) |
=(0.353-0.665)/ | 0.665 |
=-46.92 %

Guillemot's YoY EBITDA Growth for the quarter that ended in Dec. 2025 is calculated as:

YoY EBITDA Growth (Q: Dec. 2025 )
=(EBITDA per Share (Q: Dec. 2025 )-EBITDA per Share (Q: Dec. 2024 )) / | EBITDA per Share (Q: Dec. 2024 )) |
=(0.386-0.205)/ | 0.205 |
=88.29 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about YoY EBITDA Growth →
What does a YoY EBITDA Growth of 88.29% mean?
Guillemot (XPAR:GUI) has a YoY EBITDA Growth of 88.29% as of Dec. 2025. YoY EBITDA Growth is the percentage change of EBITDA per share over the past 12-month. View historical data for Guillemot and its competitors.
Is Guillemot's YoY EBITDA Growth too high?
Guillemot's current YoY EBITDA Growth is 88.29%. Overall, Guillemot has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Guillemot's YoY EBITDA Growth compare to SNDK and DELL?
Guillemot's YoY EBITDA Growth of 88.29% can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good YoY EBITDA Growth for a Hardware company?
A good YoY EBITDA Growth depends on the Hardware industry context. However, YoY EBITDA Growth should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high YoY EBITDA Growth mean?
A high YoY EBITDA Growth can signal that a stock is expensive relative to its fundamentals. YoY EBITDA Growth is the percentage change of EBITDA per share over the past 12-month. View historical data for Guillemot and its competitors. Guillemot's current YoY EBITDA Growth is 88.29%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Guillemot stock overvalued right now?
Based on GuruFocus' analysis, Guillemot (XPAR:GUI) is currently considered Modestly Undervalued. The stock's GF Value™ is €5.72, compared to a current price of €4.50 — trading 21.3% below its estimated fair value. The current YoY EBITDA Growth is 88.29%. Guillemot's overall GF Score™ is 82/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is YoY EBITDA Growth calculated?
YoY EBITDA Growth is calculated from a company's financial statements. For Guillemot (XPAR:GUI), the current YoY EBITDA Growth is 88.29% as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Guillemot (XPAR:GUI) Overvalued in 2026?

Based on GuruFocus' analysis, Guillemot stock appears to be undervalued. The current stock price of €4.50 is trading 21.3% below its estimated GF Value™ of €5.72. GuruFocus considers Guillemot to be Modestly Undervalued.

Key valuation signals for XPAR:GUI:

  • YoY EBITDA Growth: 88.29%
  • GF Value™: €5.72 vs. price of €4.50 (21.3% below fair value)
  • GF Score™: 82/100 with 4 warning signs

No single metric tells the full story. See the XPAR:GUI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Guillemot Business Description

Other Exchanges 0NB2:UKGUL:Germany
Address Place du Granier, Chantepie, FRA, 35135
Guillemot Corp SA is engaged in designing and manufacturing. Interactive entertainment hardware and accessories. The company has two flagship brands: Hercules, for the digital hardware and peripherals and Thrustmaster, for PC and console gaming accessories. The business is spread across France, Germany, Great Britain, Spain, the United States, Canada, Italy, Belgium, China and Romania.
82GF Score

Get the complete analysis for XPAR:GUI

YoY EBITDA Growth is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€4.50
Price
€5.72
GF Value