RTARF (Restar) Graham Number: $26.88 (As of Mar. 2026) — 4235% Above Median


RTARF Restar Corp RTARF
85 GF Score
Price $14.30
GF Value $12.95
! 1 Warning Sign
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What is Restar Graham Number?

Restar RTARF 85 Graham Number is $26.88 as of Mar. 2026, which is 4235% above its 10-year median of 0.62. GuruFocus rates RTARF with a GF Score™ of 85/100 and a GF Value™ of $12.95. The stock has 1 warning sign investors should review. Among 659 Semiconductors companies, Restar ranks better than 90.29% 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 (2026-07-12), the stock price of Restar is $14.30. Restar's graham number for the quarter that ended in Mar. 2026 was $26.88. Therefore, Restar's Price to Graham Number ratio for today is 0.53.

The historical rank and industry rank for Restar's Graham Number or its related term are showing as below:

RTARF' s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.5   Med: 0.62   Max: 0.95
Current: 0.88

During the past 13 years, the highest Price to Graham Number ratio of Restar was 0.95. The lowest was 0.50. And the median was 0.62.

RTARF's Price-to-Graham-Number is ranked better than
90.29% of 659 companies
in the Semiconductors industry
Industry Median: 3.19 vs RTARF: 0.88

Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.


Restar  (OTCPK:RTARF) 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.

Restar's Price to Graham number Ratio for today is calculated as

Price to Graham number=Share Price (Today)/Graham number (Q: Mar. 2026 )
=14.30/26.88
=0.53

* 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.


Restar Graham Number Related Terms


Restar Graham Number Historical Data

* Premium members only.

The historical data trend for Restar'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.

Restar Graham Number Chart

Restar Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Graham Number
Get a 7-Day Free Trial Premium Member Only Premium Member Only 22.79 27.37 21.30 30.56 26.60

Restar Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Graham Number Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 30.56 27.24 21.33 23.46 26.88

RTARF vs NVDA, AVGO, MU: Graham Number Comparison

For the Semiconductors subindustry, Restar'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.


Restar Price-to-Graham-Number vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Restar's Price-to-Graham-Number distribution charts can be found below:

* The bar in red indicates where Restar's Price-to-Graham-Number falls into.


RTARF
85GF Score
Restar Corp RTARF
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
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Restar Graham Number Calculation

Graham Number is a concept based on Ben Graham's conservative valuation of companies.

Restar's Graham Number for the fiscal year that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*17.621*1.784)
=26.60

Restar's Graham Number for the quarter that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*17.621*1.823)
=26.88

* 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.

Frequently Asked Questions Learn more about Graham Number →
What does a Graham Number of $26.88 mean?
Restar (RTARF) has a Graham Number of $26.88 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Restar and its competitors. This is 4235% above median its historical median of 0.62. Over the past decade, Restar's Graham Number has ranged from 0.50 to 0.95. According to the industry distribution chart, Restar ranks #64 out of 659 companies in the Semiconductors industry, placing it in the top 9.7%.
Is Restar's Graham Number too high?
Restar's current Graham Number of $26.88 is 4235% above median its 10-year median of 0.62. Over the past 10 years, this metric has ranged from a low of 0.50 to a high of 0.95. The Semiconductors industry median Graham Number is 3.19. Restar's value of $26.88 is 742.6% above this industry median. Based on the distribution chart, Restar ranks #64 out of 659 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Restar has a GF Score™ of 85/100, reflecting its overall financial health beyond just this single metric.
How does Restar's Graham Number compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Restar ranks #64 out of 659 companies for Graham Number. This places Restar in the top 10% of its industry — outperforming the majority of peers. The industry median Graham Number is 3.19. Restar's value of $26.88 is 742.6% above this benchmark. Historically, Restar's own Graham Number has ranged from 0.50 to 0.95 over the past decade. While the company's 10-year median is 0.62 vs. the industry median of 3.19, Restar has consistently been above 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 Semiconductors company?
The median Graham Number among Semiconductors companies is 3.19, based on 659 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. Restar's current Graham Number of $26.88 is 742.6% above 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 Restar and its competitors. For the Semiconductors industry, the median Graham Number is 3.19 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Restar's current Graham Number is $26.88, which is 4235% above median its own 10-year median of 0.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Restar stock overvalued right now?
Restar (RTARF) has a current Graham Number of $26.88. The stock's GF Value™ is $12.95, compared to a current price of $14.30 — trading 10.4% above its estimated fair value. The current Graham Number is $26.88, which is 4235% above median its 10-year median of 0.62 and 742.6% above the Semiconductors industry median of 3.19. Restar's overall GF Score™ is 85/100 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 Restar (RTARF), the current Graham Number is $26.88 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 Restar (RTARF) Overvalued in 2026?

Based on GuruFocus' analysis, Restar stock appears to be overvalued. The current stock price of $14.30 is trading 10.4% above its estimated GF Value™ of $12.95.

Key valuation signals for RTARF:

  • Graham Number: $26.88 (4235% above median its 10-year median of 0.62)
  • GF Value™: $12.95 vs. price of $14.30 (10.4% above fair value)
  • GF Score™: 85/100 with 1 warning sign
  • Industry Position: 742.6% above the Semiconductors median (#64 of 659)

No single metric tells the full story. See the RTARF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Restar Business Description

Other Exchanges 3156:Japan
Address Lester Building, 10-9 Konan 2-chome, Minato-ku, Tokyo, JPN, 108-0075
Restar Corp manufactures and distributes semiconductors and electronic components. The company offers semiconductors/modules, optical components, displays, industrial lasers, sensors, measuring instruments/filters, batteries, quartz crystal devices, adhesive materials/optical materials, and speakers/receivers. It also provides electronic manufacturing services.
85GF Score

Get the complete analysis for RTARF

Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$14.30
Price
$12.95
GF Value