Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Data StorageDTST -4.40%50 Graham Number is $N/A as of Mar. 2026. GuruFocus rates DTST with a GF Score™ of 50/100 and a GF Value™ of $1.51 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 1,478 Software companies, Data Storage ranks worse than 67658.93% 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 (2026-07-17), the stock price of Data Storage is $3.3365. Data Storage's graham number for the quarter that ended in Mar. 2026 was $N/A. Therefore, Data Storage's Price to Graham Number ratio for today is N/A.
The historical rank and industry rank for Data Storage's Graham Number or its related term are showing as below:
During the past 13 years, the highest Price to Graham Number ratio of Data Storage was 6.76. The lowest was 1.89. And the median was 2.76.
DTST's Price-to-Graham-Number is not ranked *
in the Software industry.
Industry Median: 1.87 * 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.
Data Storage (NAS:DTST) 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.
Data Storage's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
3.3365
/
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.
Data Storage Graham Number Related Terms
Data Storage Graham Number Historical Data
* Premium members only.
The historical data trend for Data Storage'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.
DTST vs TDTH, CYCU, HWNI: Graham Number Comparison
For the Information Technology Services subindustry, Data Storage'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.
Data Storage Price-to-Graham-Number vs Software Industry
For the Software industry and Technology sector, Data Storage's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Data Storage'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.
Data Storage (DTST) has a Graham Number of $N/A as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Data Storage and its competitors. Over the past decade, Data Storage's Graham Number has ranged from 1.89 to 6.76. According to the industry distribution chart, Data Storage ranks #999999 out of 1478 companies in the Software industry.
Is Data Storage's Graham Number too high?
Data Storage's current Graham Number is $N/A. Over the past 10 years, this metric has ranged from a low of 1.89 to a high of 6.76. Based on the distribution chart, Data Storage ranks #999999 out of 1478 companies in the Software industry, which is in the bottom quartile relative to peers. Overall, Data Storage has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Data Storage's Graham Number compare to TDTH and CYCU?
According to the Software industry distribution chart, Data Storage ranks #999999 out of 1478 companies for Graham Number. This places Data Storage in the lower half of its industry. The industry median Graham Number is 1.87. Historically, Data Storage's own Graham Number has ranged from 1.89 to 6.76 over the past decade. 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 Software company?
The median Graham Number among Software companies is 1.87, based on 1,478 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 Data Storage and its competitors. For the Software industry, the median Graham Number is 1.87 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Data Storage'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 Data Storage stock overvalued right now?
Based on GuruFocus' analysis, Data Storage (DTST) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.51, compared to a current price of $3.34 — trading 121% above its estimated fair value. The current Graham Number is $N/A. Data Storage's overall GF Score™ is 50/100 with 6 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 Data Storage (DTST), the current Graham Number is $N/A 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.
Is Data Storage (DTST) Overvalued in 2026?
Based on GuruFocus' analysis, Data Storage stock appears to be overvalued.
The current stock price of $3.34 is trading 121% above its estimated GF Value™ of $1.51.
GuruFocus considers Data Storage to be Significantly Overvalued.
Key valuation signals for DTST:
Graham Number: $N/A
GF Value™: $1.51 vs. price of $3.34 (121% above fair value)
No single metric tells the full story. See the DTST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Data Storage Corporation engages in providing cybersecurity, compliance and cloud computing solutions. The company's segment includes Nexxis Inc and corporate segment. It generates maximum revenue from the Nexxis Corporation segment. The company's solutions include infrastructure, disaster recovery, email archival, compliance, electronic vaulting, virtualized recovery, telecom recovery services, and continuous data protection.
50GF Score
Get the complete analysis for DTST
Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
DTST has been successfully added to your 
