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Pharma-Bio ServPBSV -27.16%43 Graham Number is $0.14 as of Apr. 2026, which is 86% below its 10-year median of 1.02. GuruFocus rates PBSV with a GF Score™ of 43/100 and a GF Value™ of $0.58 (Modestly Undervalued). The stock has 1 warning sign investors should review. Among 369 Healthcare Providers & Services companies, Pharma-Bio Serv ranks worse than 73.98% 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 Pharma-Bio Serv is $0.4225. Pharma-Bio Serv's graham number for the quarter that ended in Apr. 2026 was $0.14. Therefore, Pharma-Bio Serv's Price to Graham Number ratio for today is 2.95.
The historical rank and industry rank for Pharma-Bio Serv's Graham Number or its related term are showing as below:
PBSV'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.61 Med: 1.02 Max: 3.57
Current: 3.02
During the past 13 years, the highest Price to Graham Number ratio of Pharma-Bio Serv was 3.57. The lowest was 0.61. And the median was 1.02.
PBSV's Price-to-Graham-Number is ranked worse than 73.98% of 369
companies
in the Healthcare Providers & Services industry
Industry Median: 1.66
vs PBSV: 3.02
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Pharma-Bio Serv (OTCPK:PBSV) 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.
Pharma-Bio Serv's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Apr. 2026 )
=
0.4225
/
0.14
=
2.95
* 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.
Pharma-Bio Serv Graham Number Related Terms
Pharma-Bio Serv Graham Number Historical Data
* Premium members only.
The historical data trend for Pharma-Bio Serv'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.
PBSV vs MGRX, BFRG, VYND: Graham Number Comparison
For the Health Information Services subindustry, Pharma-Bio Serv'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.
Pharma-Bio Serv Price-to-Graham-Number vs Healthcare Providers & Services Industry
For the Healthcare Providers & Services industry and Healthcare sector, Pharma-Bio Serv's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Pharma-Bio Serv'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.
Pharma-Bio Serv (PBSV) has a Graham Number of $0.14 as of Apr. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Pharma-Bio Serv and its competitors. This is 86% below median its historical median of 1.02. Over the past decade, Pharma-Bio Serv's Graham Number has ranged from 0.61 to 3.57. According to the industry distribution chart, Pharma-Bio Serv ranks #273 out of 369 companies in the Healthcare Providers & Services industry, placing it in the top 74%.
Is Pharma-Bio Serv's Graham Number too high?
Pharma-Bio Serv's current Graham Number of $0.14 is 86% below median its 10-year median of 1.02. Over the past 10 years, this metric has ranged from a low of 0.61 to a high of 3.57. The Healthcare Providers & Services industry median Graham Number is 1.66. Pharma-Bio Serv's value of $0.14 is 91.6% below this industry median. Based on the distribution chart, Pharma-Bio Serv ranks #273 out of 369 companies in the Healthcare Providers & Services industry, which is below the industry midpoint. Overall, Pharma-Bio Serv has a GF Score™ of 43/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Pharma-Bio Serv's Graham Number compare to MGRX and BFRG?
According to the Healthcare Providers & Services industry distribution chart, Pharma-Bio Serv ranks #273 out of 369 companies for Graham Number. This places Pharma-Bio Serv in the lower half of its industry. The industry median Graham Number is 1.66. Pharma-Bio Serv's value of $0.14 is 91.6% below this benchmark. Historically, Pharma-Bio Serv's own Graham Number has ranged from 0.61 to 3.57 over the past decade. While the company's 10-year median is 1.02 vs. the industry median of 1.66, Pharma-Bio Serv 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 Graham Number for a Healthcare Providers & Services company?
The median Graham Number among Healthcare Providers & Services companies is 1.66, based on 369 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. Pharma-Bio Serv's current Graham Number of $0.14 is 91.6% 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 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 Pharma-Bio Serv and its competitors. For the Healthcare Providers & Services industry, the median Graham Number is 1.66 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Pharma-Bio Serv's current Graham Number is $0.14, which is 86% below median its own 10-year median of 1.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Pharma-Bio Serv stock overvalued right now?
Based on GuruFocus' analysis, Pharma-Bio Serv (PBSV) is currently considered Modestly Undervalued. The stock's GF Value™ is $0.58, compared to a current price of $0.42 — trading 27.2% below its estimated fair value. The current Graham Number is $0.14, which is 86% below median its 10-year median of 1.02 and 91.6% below the Healthcare Providers & Services industry median of 1.66. Pharma-Bio Serv's overall GF Score™ is 43/100 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 Pharma-Bio Serv (PBSV), the current Graham Number is $0.14 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.
Is Pharma-Bio Serv (PBSV) Overvalued in 2026?
Based on GuruFocus' analysis, Pharma-Bio Serv stock appears to be undervalued.
The current stock price of $0.42 is trading 27.2% below its estimated GF Value™ of $0.58.
GuruFocus considers Pharma-Bio Serv to be Modestly Undervalued.
Key valuation signals for PBSV:
Graham Number: $0.14 (86% below median its 10-year median of 1.02)
GF Value™: $0.58 vs. price of $0.42 (27.2% below fair value)
Industry Position: 91.6% below the Healthcare Providers & Services median (#273 of 369)
No single metric tells the full story. See the PBSV stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Pharma-Bio Serv Inc is a compliance and technology transfer services consulting firm. It also provides microbiological testing services and chemical testing services through its laboratory testing facility in Puerto Rico. It has three reportable segments: Puerto Rico technical compliance consulting which is the key revenue driver; United States technical compliance consulting; and Europe technical compliance consulting. The company offers solutions to the pharmaceutical, chemical, biotechnology, medical devices, cosmetic and food industries, and allied products companies. It generates maximum revenue from Puerto Rico and also has its presence in United States, Europe and Other countries.
43GF Score
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