CyanotechCYAN 34 PB Ratio is 0.46 as of Jul. 05, 2026, which is 51% below its 10-year median of 0.93. GuruFocus rates CYAN with a GF Score™ of 34/100 and a GF Value™ of $0.40 (Modestly Overvalued). The stock has 9 warning signs investors should review. Among 1,895 Consumer Packaged Goods companies, Cyanotech ranks better than 89.45% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-05), Cyanotech's share price is $0.48658. Cyanotech's Book Value per Share for the quarter that ended in Dec. 2025 was $1.06. Hence, Cyanotech's PB Ratio of today is 0.46.
Warning Sign:
Cyanotech Corp stock PB Ratio (=0.46) is close to 1-year high of 0.5.
The historical rank and industry rank for Cyanotech's PB Ratio or its related term are showing as below:
CYAN'
s PB Ratio Range Over the Past 10 Years
Min: 0.12 Med: 0.93 Max: 1.72
Current: 0.46
During the past 13 years, Cyanotech's highest PB Ratio was 1.72. The lowest was 0.12. And the median was 0.93.
CYAN's PB Ratio is ranked better than 89.45% of 1895
companies
in the Consumer Packaged Goods industry
Industry Median: 1.37
vs CYAN: 0.46
During the past 12 months, Cyanotech's average Book Value Per Share Growth Rate was -20.10% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -26.80% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -14.50% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -7.40% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Cyanotech was 82.40% per year. The lowest was -26.80% per year. And the median was -2.85% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Cyanotech PB Ratio Related Terms
Cyanotech PB Ratio Historical Data
* Premium members only.
The historical data trend for Cyanotech's PB Ratio 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.
For the Packaged Foods subindustry, Cyanotech'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.
Cyanotech PB Ratio vs Consumer Packaged Goods Industry
For the Consumer Packaged Goods industry and Consumer Defensive sector, Cyanotech's PB Ratio distribution charts can be found below:
* The bar in red indicates where Cyanotech's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Cyanotech's PB Ratio for today is calculated as follows:
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Cyanotech (CYAN) has a PB Ratio of 0.46 as of Jul. 05, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Cyanotech and its competitors. This is 51% below median its historical median of 0.93. Over the past decade, Cyanotech's PB Ratio has ranged from 0.12 to 1.72. According to the industry distribution chart, Cyanotech ranks #200 out of 1895 companies in the Consumer Packaged Goods industry, placing it in the top 10.6%.
Is Cyanotech's PB Ratio too high?
Cyanotech's current PB Ratio of 0.46 is 51% below median its 10-year median of 0.93. Over the past 10 years, this metric has ranged from a low of 0.12 to a high of 1.72. The Consumer Packaged Goods industry median PB Ratio is 1.37. Cyanotech's value of 0.46 is 66.4% below this industry median. Based on the distribution chart, Cyanotech ranks #200 out of 1895 companies in the Consumer Packaged Goods industry, which is in the top quartile — a strong position relative to peers. Overall, Cyanotech has a GF Score™ of 34/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Cyanotech's PB Ratio compare to PAVS and TOFB?
According to the Consumer Packaged Goods industry distribution chart, Cyanotech ranks #200 out of 1895 companies for PB Ratio. This places Cyanotech in the top 11% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.37. Cyanotech's value of 0.46 is 66.4% below this benchmark. Historically, Cyanotech's own PB Ratio has ranged from 0.12 to 1.72 over the past decade. While the company's 10-year median is 0.93 vs. the industry median of 1.37, Cyanotech has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Consumer Packaged Goods company?
The median PB Ratio among Consumer Packaged Goods companies is 1.37, based on 1,895 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Cyanotech's current PB Ratio of 0.46 is 66.4% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Cyanotech and its competitors. For the Consumer Packaged Goods industry, the median PB Ratio is 1.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Cyanotech's current PB Ratio is 0.46, which is 51% below median its own 10-year median of 0.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cyanotech stock overvalued right now?
Based on GuruFocus' analysis, Cyanotech (CYAN) is currently considered Modestly Overvalued. The stock's GF Value™ is $0.40, compared to a current price of $0.49 — trading 21.6% above its estimated fair value. The current PB Ratio is 0.46, which is 51% below median its 10-year median of 0.93 and 66.4% below the Consumer Packaged Goods industry median of 1.37. Cyanotech's overall GF Score™ is 34/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Cyanotech (CYAN), the current PB Ratio is 0.46 as of Jul. 05, 2026. 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 Cyanotech (CYAN) Overvalued in 2026?
Based on GuruFocus' analysis, Cyanotech stock appears to be overvalued.
The current stock price of $0.49 is trading 21.6% above its estimated GF Value™ of $0.40.
GuruFocus considers Cyanotech to be Modestly Overvalued.
Key valuation signals for CYAN:
PB Ratio: 0.46 (51% below median its 10-year median of 0.93)
GF Value™: $0.40 vs. price of $0.49 (21.6% above fair value)
Industry Position: 66.4% below the Consumer Packaged Goods median (#200 of 1895)
No single metric tells the full story. See the CYAN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Cyanotech Corp is engaged in the production of natural products derived from microalgae for the nutritional supplements market. The company's products include BioAstin Hawaiian Astaxanthin and Hawaiian Spirulina Pacifica is a dietary supplement used for extra energy, a strengthened immune system, cardiovascular benefits, and as a source of antioxidant carotenoids. BioAstin Hawaiian Astaxanthin is a dietary antioxidant shown to support and maintain the body's natural inflammatory response, enhance skin, and support eye and joint health. It derives maximum revenue from the Packaged product and geographically from the United States.
34GF Score
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