Guillemot (XPAR:GUI) YoY EPS Growth: 188.89% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

XPAR:GUI Guillemot Corp SA XPAR:GUI
80 GF Score
Price €4.46
GF Value €5.72
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is Guillemot YoY EPS Growth?

Guillemot XPAR:GUI -0.45% 80 YoY EPS Growth is 188.89% as of Dec. 2025. GuruFocus rates XPAR:GUI with a GF Score™ of 80/100 and a GF Value™ of €5.72 (Modestly Undervalued). The stock has 4 warning signs investors should review.

YoY EPS Growth is the percentage change of Earnings per Share (Diluted) over the past twelve months. Guillemot's YoY EPS Growth for the quarter that ended in Dec. 2025 was 188.89%.

Guillemot's Earnings per Share (Diluted) for the six months ended in Dec. 2025 was €0.08.

Guillemot YoY EPS Growth Historical Data

* Premium members only.

The historical data trend for Guillemot's YoY EPS 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 EPS Growth Chart

Guillemot Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
YoY EPS Growth
Get a 7-Day Free Trial Premium Member Only Premium Member Only -54.36 50.56 -95.52 33.33 -312.50

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 EPS 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 47.06 184.21 -136.00 -256.25 188.89
XPAR:GUI
80GF Score
Guillemot Corp SA XPAR:GUI
YoY EPS Growth is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Guillemot YoY EPS Growth Calculation

YoY EPS Growth is the percentage change of Earnings per Share (Diluted) over the past twelve months.

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

YoY EPS Growth (A: Dec. 2025 )
=(Earnings per Share (Diluted) (A: Dec. 2025 )-Earnings per Share (Diluted) (A: Dec. 2024 ))/ | Earnings per Share (Diluted) (A: Dec. 2024 ) |
=(-0.17-0.08)/ | 0.08 |
=-312.50 %

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

YoY EPS Growth (Q: Dec. 2025 )
=(Earnings per Share (Diluted) (Q: Dec. 2025 )-Earnings per Share (Diluted) (Q: Dec. 2024 )) / | Earnings per Share (Diluted) (Q: Dec. 2024 )) |
=(0.08--0.09)/ | -0.09 |
=188.89 %

* 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 EPS Growth →
What does a YoY EPS Growth of 188.89% mean?
Guillemot (XPAR:GUI) has a YoY EPS Growth of 188.89% as of Dec. 2025. YoY EPS Growth is the percentage change of EPS over the past 12-month. View historical data for Guillemot and its competitors.
Is Guillemot's YoY EPS Growth too high?
Guillemot's current YoY EPS Growth is 188.89%. Overall, Guillemot has a GF Score™ of 80/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Guillemot's YoY EPS Growth compare to SNDK and DELL?
Guillemot's YoY EPS Growth of 188.89% 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 EPS Growth for a Hardware company?
A good YoY EPS Growth depends on the Hardware industry context. However, YoY EPS 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 EPS Growth mean?
A high YoY EPS Growth can signal that a stock is expensive relative to its fundamentals. YoY EPS Growth is the percentage change of EPS over the past 12-month. View historical data for Guillemot and its competitors. Guillemot's current YoY EPS Growth is 188.89%. 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 €4.46 — trading 22% below its estimated fair value. The current YoY EPS Growth is 188.89%. Guillemot's overall GF Score™ is 80/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is YoY EPS Growth calculated?
YoY EPS Growth is calculated from a company's financial statements. For Guillemot (XPAR:GUI), the current YoY EPS Growth is 188.89% 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 €4.46 is trading 22% below its estimated GF Value™ of €5.72. GuruFocus considers Guillemot to be Modestly Undervalued.

Key valuation signals for XPAR:GUI:

  • YoY EPS Growth: 188.89%
  • GF Value™: €5.72 vs. price of €4.46 (22% below fair value)
  • GF Score™: 80/100 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.
80GF Score

Get the complete analysis for XPAR:GUI

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

€4.46
Price
€5.72
GF Value