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Sona NanotechSNANF 26 Graham Number is $N/A as of Apr. 2026. GuruFocus rates SNANF with a GF Score™ of 26/100. The stock has 1 warning sign investors should review. Among 251 Biotechnology companies, Sona Nanotech ranks worse than 398405.98% on this metric.
Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.
As of today (2026-08-03), the stock price of Sona Nanotech is $0.22. Sona Nanotech's graham number for the quarter that ended in Apr. 2026 was $N/A. Therefore, Sona Nanotech's Price to Graham Number ratio for today is N/A.
The historical rank and industry rank for Sona Nanotech's Graham Number or its related term are showing as below:
SNANF's Price-to-Graham-Number is not ranked *
in the Biotechnology industry.
Industry Median: 1.73 * Ranked among companies with meaningful Price-to-Graham-Number only.
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Sona Nanotech (OTCPK:SNANF) Graham Number Explanation
Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:
Current price should not be more than 15 times average earnings of the past three years.
Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)
Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.
In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.
Sona Nanotech's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Apr. 2026 )
=
0.22
/
N/A
=
N/A
* 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.
Be Aware
Please keep these in mind:
1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.
Sona Nanotech Graham Number Related Terms
Sona Nanotech Graham Number Historical Data
* Premium members only.
The historical data trend for Sona Nanotech's Graham Number 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.
SNANF vs VRTX, REGN, RVMD: Graham Number Comparison
For the Biotechnology subindustry, Sona Nanotech's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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.
Sona Nanotech Price-to-Graham-Number vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Sona Nanotech's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Sona Nanotech's Price-to-Graham-Number 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.
Sona Nanotech (SNANF) has a Graham Number of $N/A as of Apr. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Sona Nanotech and its competitors. According to the industry distribution chart, Sona Nanotech ranks #999999 out of 251 companies in the Biotechnology industry.
Is Sona Nanotech's Graham Number too high?
Sona Nanotech's current Graham Number is $N/A. Based on the distribution chart, Sona Nanotech ranks #999999 out of 251 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Sona Nanotech has a GF Score™ of 26/100, reflecting its overall financial health beyond just this single metric.
How does Sona Nanotech's Graham Number compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Sona Nanotech ranks #999999 out of 251 companies for Graham Number. This places Sona Nanotech in the lower half of its industry. The industry median Graham Number is 1.73. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Graham Number for a Biotechnology company?
The median Graham Number among Biotechnology companies is 1.73, based on 251 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Sona Nanotech and its competitors. For the Biotechnology industry, the median Graham Number is 1.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sona Nanotech's current Graham Number is $N/A. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sona Nanotech stock overvalued right now?
Sona Nanotech (SNANF) has a current Graham Number of $N/A. The current Graham Number is $N/A. Sona Nanotech's overall GF Score™ is 26/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Sona Nanotech (SNANF), the current Graham Number is $N/A as of Apr. 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.
Sona Nanotech Inc is involved in the nanotechnology life sciences industry. It has developed two proprietary methods for the manufacture of rod-shaped gold nanoparticles and is engaged in the research and development of its proprietary technology for use in biomedical applications and multiplex diagnostic testing platforms. The company is using its gold nano rods manufacturing technology to develop new products and methods for cancer treatment, including a Targeted Hyperthermia Therapy (THT). Additionally, it has filed patent applications in the U.S. regarding a gold nanorod conjugation concept for targeted drug delivery, combination therapies for treating cancer, and for an endoscope with an optical fibre and thermal sensor for photothermal therapy.
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