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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 Ocean Power Technologies's Graham Number or its related term are showing as below:
OPTT's Price-to-Graham-Number is not ranked *
in the Industrial Products industry.
Industry Median: 1.7 * 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.
Ocean Power Technologies (AMEX:OPTT) 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.
Ocean Power Technologies's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Jan. 2026 )
=
0.1837
/
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.
Ocean Power Technologies Graham Number Related Terms
Ocean Power Technologies Graham Number Historical Data
* 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 Specialty Industrial Machinery subindustry, Ocean Power Technologies'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.
Ocean Power Technologies Price-to-Graham-Number vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Ocean Power Technologies's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Ocean Power Technologies'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.
Ocean Power Technologies (OPTT) has a Graham Number of $N/A as of Jan. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Ocean Power Technologies and its competitors. According to the industry distribution chart, Ocean Power Technologies ranks #999999 out of 2201 companies in the Industrial Products industry.
Is Ocean Power Technologies' Graham Number too high?
Ocean Power Technologies' current Graham Number is $N/A. Based on the distribution chart, Ocean Power Technologies ranks #999999 out of 2201 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, Ocean Power Technologies has a GF Score™ of 41/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ocean Power Technologies' Graham Number compare to LASE and HYOR?
According to the Industrial Products industry distribution chart, Ocean Power Technologies ranks #999999 out of 2201 companies for Graham Number. This places Ocean Power Technologies in the lower half of its industry. The industry median Graham Number is 1.70. 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 an Industrial Products company?
The median Graham Number among Industrial Products companies is 1.70, based on 2,201 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 Ocean Power Technologies and its competitors. For the Industrial Products industry, the median Graham Number is 1.70 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ocean Power Technologies'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 Ocean Power Technologies stock overvalued right now?
Based on GuruFocus' analysis, Ocean Power Technologies (OPTT) is currently considered Modestly Overvalued. The stock's GF Value™ is $0.15, compared to a current price of $0.18 — trading 22.5% above its estimated fair value. The current Graham Number is $N/A. Ocean Power Technologies' overall GF Score™ is 41/100 with 8 warning signs 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 Ocean Power Technologies (OPTT), the current Graham Number is $N/A as of Jan. 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 Ocean Power Technologies (OPTT) Overvalued in 2026?
Based on GuruFocus' analysis, Ocean Power Technologies stock appears to be overvalued.
The current stock price of $0.18 is trading 22.5% above its estimated GF Value™ of $0.15.
GuruFocus considers Ocean Power Technologies to be Modestly Overvalued.
Key valuation signals for OPTT:
Graham Number: $N/A
GF Value™: $0.15 vs. price of $0.18 (22.5% above fair value)
No single metric tells the full story. See the OPTT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ocean Power Technologies Inc provides intelligent maritime solutions and services that enable safer, cleaner, and more productive ocean operations for the defense and security, oil and gas, science and research, and offshore wind markets. It provides ocean data collection and reporting, marine power, offshore communications, and Maritime Domain Awareness System (MDAS) products, integrated solutions, and consulting services. The company offers its products and services to a wide range of customers, including those in government and offshore energy, oil and gas, construction, wind power, and other industries. The company has operations in North and South America, Europe, Asia and Australia.
41GF Score
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