Celyad Oncology's book value per share for the quarter that ended in Dec. 2025 was $0.06.
During the past 12 months, Celyad Oncology's average Book Value Per Share Growth Rate was 350.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -34.40% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -62.20% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -47.60% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the book value growth rate using book value per share data.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Celyad Oncology was 205.40% per year. The lowest was -81.60% per year. And the median was -27.00% per year.
Celyad Oncology's current price is $0.25. Its book value per share for the quarter that ended in Dec. 2025 was $0.06. Hence, today's PB Ratio of Celyad Oncology is 3.91.
During the past 13 years, the highest P/B Ratio of Celyad Oncology was 56.83. The lowest was 0.08. And the median was 2.22.
Good Sign:
Celyad Oncology SA stock PB Ratio (=4.35) is close to 1-year low of 4.35.
Celyad Oncology (OTCPK:CLYYF) Book Value per Share Explanation
Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.
For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.
Celyad Oncology Book Value per Share Related Terms
Celyad Oncology Book Value per Share Historical Data
* Premium members only.
The historical data trend for Celyad Oncology's Book Value per Share 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.
CLYYF vs VRTX, REGN, ALNY: Book Value per Share Comparison
For the Biotechnology subindustry, Celyad Oncology's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Celyad Oncology PB Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Celyad Oncology's PB Ratio distribution charts can be found below:
* The bar in red indicates where Celyad Oncology's PB Ratio falls into.
* 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.
Celyad Oncology (CLYYF) has a Book Value per Share of $0.06 as of Dec. 2025. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Celyad Oncology and its competitors.
Is Celyad Oncology's Book Value per Share too high?
Celyad Oncology's current Book Value per Share is $0.06. Overall, Celyad Oncology has a GF Score™ of 13/100, reflecting its overall financial health beyond just this single metric.
How does Celyad Oncology's Book Value per Share compare to VRTX and REGN?
Celyad Oncology's Book Value per Share of $0.06 can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Book Value per Share for a Biotechnology company?
A good Book Value per Share depends on the Biotechnology industry context. However, Book Value per Share 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 Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Celyad Oncology and its competitors. Celyad Oncology's current Book Value per Share is $0.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Celyad Oncology stock overvalued right now?
Celyad Oncology (CLYYF) has a current Book Value per Share of $0.06. The stock's GF Value™ is $0.47, compared to a current price of $0.25 — trading 46.8% below its estimated fair value. The current Book Value per Share is $0.06. Celyad Oncology's overall GF Score™ is 13/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For Celyad Oncology (CLYYF), the current Book Value per Share is $0.06 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 Celyad Oncology (CLYYF) Overvalued in 2026?
Based on GuruFocus' analysis, Celyad Oncology stock appears to be undervalued.
The current stock price of $0.25 is trading 46.8% below its estimated GF Value™ of $0.47.
Key valuation signals for CLYYF:
Book Value per Share: $0.06
GF Value™: $0.47 vs. price of $0.25 (46.8% below fair value)
No single metric tells the full story. See the CLYYF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Celyad Oncology SA is a biopharmaceutical company focused on the discovery and development of technologies for chimeric antigen receptor T-cell (CAR T) therapies. The company focuses on solid tumors and hematological malignancies. The firm has CYAD-01 and CYAD-02 programs in the pipeline. The company owns trademarks and service marks, including CELYAD, C-CATH, C_CURE, CAR-T Cell, THINK, CYAD01 - Deplethink, CYAD02 - Cycle1, CwalityCAR, CYAD-101, and new engagers. The firm has Cardiology and Immuno-oncology operating segments. It generates the majority of its revenue from the Cardiology segment.
13GF Score
Get the complete analysis for CLYYF
Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
CLYYF has been successfully added to your 
