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SolarWindow TechnologiesWNDW +0.74%34 Graham Number is $N/A as of May. 2026. GuruFocus rates WNDW with a GF Score™ of 34/100. The stock has 3 warning signs investors should review. Among 273 Utilities - Independent Power Producers companies, SolarWindow Technologies ranks worse than 366300% 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 SolarWindow Technologies's Graham Number or its related term are showing as below:
WNDW's Price-to-Graham-Number is not ranked *
in the Utilities - Independent Power Producers industry.
Industry Median: 1.14 * 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.
SolarWindow Technologies (OTCPK:WNDW) 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.
SolarWindow Technologies's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: May. 2026 )
=
0.821
/
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.
SolarWindow Technologies Graham Number Related Terms
SolarWindow 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.
WNDW vs VGAS, BESS, HTOO: Graham Number Comparison
For the Utilities - Renewable subindustry, SolarWindow 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.
SolarWindow Technologies Price-to-Graham-Number vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, SolarWindow Technologies's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where SolarWindow 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.
SolarWindow Technologies (WNDW) has a Graham Number of $N/A as of May. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on SolarWindow Technologies and its competitors. According to the industry distribution chart, SolarWindow Technologies ranks #999999 out of 273 companies in the Utilities - Independent Power Producers industry.
Is SolarWindow Technologies' Graham Number too high?
SolarWindow Technologies' current Graham Number is $N/A. Based on the distribution chart, SolarWindow Technologies ranks #999999 out of 273 companies in the Utilities - Independent Power Producers industry, which is in the bottom quartile relative to peers. Overall, SolarWindow Technologies has a GF Score™ of 34/100, reflecting its overall financial health beyond just this single metric.
How does SolarWindow Technologies' Graham Number compare to VGAS and BESS?
According to the Utilities - Independent Power Producers industry distribution chart, SolarWindow Technologies ranks #999999 out of 273 companies for Graham Number. This places SolarWindow Technologies in the lower half of its industry. The industry median Graham Number is 1.14. 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 Utilities - Independent Power Producers company?
The median Graham Number among Utilities - Independent Power Producers companies is 1.14, based on 273 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 SolarWindow Technologies and its competitors. For the Utilities - Independent Power Producers industry, the median Graham Number is 1.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SolarWindow 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 SolarWindow Technologies stock overvalued right now?
SolarWindow Technologies (WNDW) has a current Graham Number of $N/A. The current Graham Number is $N/A. SolarWindow Technologies' overall GF Score™ is 34/100 with 3 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 SolarWindow Technologies (WNDW), the current Graham Number is $N/A as of May. 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.
SolarWindow Technologies Inc is a developer of transparent electricity-generating coatings namely LiquidElectricity Coatings. The LiquidElectricity Coatings transform surfaces into photovoltaic devices capable of generating electricity from natural sun, artificial light, and low, shaded, or reflected light conditions while maintaining transparency. The company's products cater to multiple industries, including architectural, automotive, agrivoltaic, aerospace, commercial transportation, and marine.
34GF Score
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