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Invitro InternationalIVRO +1.33% Graham Number is $0.09 as of Mar. 2026, which is 90% below its 10-year median of 0.86. The stock has 1 warning sign investors should review. Among 71 Medical Diagnostics & Research companies, Invitro International ranks better than 91.55% 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.
The historical rank and industry rank for Invitro International's Graham Number or its related term are showing as below:
IVRO'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.67 Med: 0.86 Max: 1
Current: 0.75
During the past 9 years, the highest Price to Graham Number ratio of Invitro International was 1.00. The lowest was 0.67. And the median was 0.86.
IVRO's Price-to-Graham-Number is ranked better than 91.55% of 71
companies
in the Medical Diagnostics & Research industry
Industry Median: 2.43
vs IVRO: 0.75
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Invitro International (OTCPK:IVRO) 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.
Invitro International's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
0.0679
/
0.09
=
0.73
* 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.
Invitro International Graham Number Related Terms
Invitro International Graham Number Historical Data
* Premium members only.
The historical data trend for Invitro International'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.
IVRO vs IDTA, PRPH, NSTM: Graham Number Comparison
For the Diagnostics & Research subindustry, Invitro International'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.
Invitro International Price-to-Graham-Number vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Invitro International's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Invitro International'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.
Invitro International (IVRO) has a Graham Number of $0.09 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Invitro International and its competitors. This is 90% below median its historical median of 0.86. Over the past decade, Invitro International's Graham Number has ranged from 0.67 to 1.00. According to the industry distribution chart, Invitro International ranks #6 out of 71 companies in the Medical Diagnostics & Research industry, placing it in the top 8.5%.
Is Invitro International's Graham Number too high?
Invitro International's current Graham Number of $0.09 is 90% below median its 10-year median of 0.86. Over the past 10 years, this metric has ranged from a low of 0.67 to a high of 1.00. The Medical Diagnostics & Research industry median Graham Number is 2.43. Invitro International's value of $0.09 is 96.3% below this industry median. Based on the distribution chart, Invitro International ranks #6 out of 71 companies in the Medical Diagnostics & Research industry, which is in the top quartile — a strong position relative to peers.
How does Invitro International's Graham Number compare to IDTA and PRPH?
According to the Medical Diagnostics & Research industry distribution chart, Invitro International ranks #6 out of 71 companies for Graham Number. This places Invitro International in the top 9% of its industry — outperforming the majority of peers. The industry median Graham Number is 2.43. Invitro International's value of $0.09 is 96.3% below this benchmark. Historically, Invitro International's own Graham Number has ranged from 0.67 to 1.00 over the past decade. While the company's 10-year median is 0.86 vs. the industry median of 2.43, Invitro International 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 Medical Diagnostics & Research company?
The median Graham Number among Medical Diagnostics & Research companies is 2.43, based on 71 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. Invitro International's current Graham Number of $0.09 is 96.3% 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 Invitro International and its competitors. For the Medical Diagnostics & Research industry, the median Graham Number is 2.43 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Invitro International's current Graham Number is $0.09, which is 90% below median its own 10-year median of 0.86. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Invitro International stock overvalued right now?
Based on GuruFocus' analysis, Invitro International (IVRO) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.05, compared to a current price of $0.07 — trading 35.8% above its estimated fair value. The current Graham Number is $0.09, which is 90% below median its 10-year median of 0.86 and 96.3% below the Medical Diagnostics & Research industry median of 2.43. 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 Invitro International (IVRO), the current Graham Number is $0.09 as of Mar. 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.
Invitro International is a provider of non-animal testing methods. The company develops and commercializes test kits and laboratory services. Its testing technologies are designed to produce data regarding corrosivity, or ocular/dermal irritation, which correlate with animal and human test results. Its products and services include Irritection, Corrositex, and Lab Services. The company provides its products to various industries such as cosmetics, personal care, household products, textiles, pharmaceuticals, chemicals, and hazardous waste transportation. The majority of its revenue is generated from the United States and it also exports to other countries.
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