Rainbow Polikarbonatnayi Ticaret Anonim Sirketi (IST:RNPOL) Graham Number: ₺1.11 (As of Dec. 2025) — 28% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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.
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Charlie Tian
Founder & CEO of GuruFocus
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.

IST:RNPOL Rainbow Polikarbonat Sanayi Ticaret Anonim Sirketi IST:RNPOL
81 GF Score
Price ₺2.38
GF Value ₺3.07
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Graham Number?

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi IST:RNPOL +3.93% 81 Graham Number is ₺1.11 as of Dec. 2025, which is 100% below its 10-year median of 1.54. GuruFocus rates IST:RNPOL with a GF Score™ of 81/100 and a GF Value™ of ₺3.07 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 1,154 Chemicals companies, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi ranks worse than 86655.03% 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 (2026-07-24), the stock price of Rainbow Polikarbonatnayi Ticaret Anonim Sirketi is ₺2.38. Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's graham number for the quarter that ended in Dec. 2025 was ₺1.11. Therefore, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Price to Graham Number ratio for today is N/A.

The historical rank and industry rank for Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number or its related term are showing as below:

During the past 8 years, the highest Price to Graham Number ratio of Rainbow Polikarbonatnayi Ticaret Anonim Sirketi was 1.80. The lowest was 0.69. And the median was 1.54.

IST:RNPOL's Price-to-Graham-Number is not ranked *
in the Chemicals industry.
Industry Median: 1.445
* 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.


Rainbow Polikarbonatnayi Ticaret Anonim Sirketi  (IST:RNPOL) 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.

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Price to Graham number Ratio for today is calculated as

Price to Graham number=Share Price (Today)/Graham number (Q: Dec. 2025 )
=2.38/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.


Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Graham Number Related Terms


Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Graham Number Historical Data

* Premium members only.

The historical data trend for Rainbow Polikarbonatnayi Ticaret Anonim Sirketi'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.

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Graham Number Chart

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Graham Number
Get a 7-Day Free Trial 0.40 0.60 0.00 1.83 0.00

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Quarterly Data
Dec18 Dec19 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Sep24 Dec24 Sep25 Dec25
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 0.00 0.00 1.10 1.25 1.11

IST:RNPOL vs LIN, SHW, ECL: Graham Number Comparison

For the Specialty Chemicals subindustry, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi'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.


Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Price-to-Graham-Number vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Price-to-Graham-Number distribution charts can be found below:

* The bar in red indicates where Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Price-to-Graham-Number falls into.


IST:RNPOL
81GF Score
Rainbow Polikarbonat Sanayi Ticaret Anonim Sirketi IST:RNPOL
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
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Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Graham Number Calculation

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

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number for the fiscal year that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*1.882*-0.081)
=N/A

Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number for the quarter that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*1.882*-0.016)
=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.

Frequently Asked Questions Learn more about Graham Number →
What does a Graham Number of ₺1.11 mean?
Rainbow Polikarbonatnayi Ticaret Anonim Sirketi (IST:RNPOL) has a Graham Number of ₺1.11 as of Dec. 2025. The Graham Number values a company based on its per-share earnings and book value. View historical data on Rainbow Polikarbonatnayi Ticaret Anonim Sirketi and its competitors. This is 28% below median its historical median of 1.54. Over the past decade, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number has ranged from 0.69 to 1.80. According to the industry distribution chart, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi ranks #999999 out of 1154 companies in the Chemicals industry.
Is Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number too high?
Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's current Graham Number of ₺1.11 is 28% below median its 10-year median of 1.54. Over the past 10 years, this metric has ranged from a low of 0.69 to a high of 1.80. Based on the distribution chart, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi ranks #999999 out of 1154 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi has a GF Score™ of 81/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's Graham Number compare to LIN and SHW?
According to the Chemicals industry distribution chart, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi ranks #999999 out of 1154 companies for Graham Number. This places Rainbow Polikarbonatnayi Ticaret Anonim Sirketi in the lower half of its industry. The industry median Graham Number is 1.45. Historically, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's own Graham Number has ranged from 0.69 to 1.80 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 Chemicals company?
The median Graham Number among Chemicals companies is 1.45, based on 1,154 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 Rainbow Polikarbonatnayi Ticaret Anonim Sirketi and its competitors. For the Chemicals industry, the median Graham Number is 1.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's current Graham Number is ₺1.11, which is 28% below median its own 10-year median of 1.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rainbow Polikarbonatnayi Ticaret Anonim Sirketi stock overvalued right now?
Based on GuruFocus' analysis, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi (IST:RNPOL) is currently considered Modestly Undervalued. The stock's GF Value™ is ₺3.07, compared to a current price of ₺2.38 — trading 22.5% below its estimated fair value. The current Graham Number is ₺1.11, which is 28% below median its 10-year median of 1.54. Rainbow Polikarbonatnayi Ticaret Anonim Sirketi's overall GF Score™ is 81/100 with 5 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 Rainbow Polikarbonatnayi Ticaret Anonim Sirketi (IST:RNPOL), the current Graham Number is ₺1.11 as of Dec. 2025. 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 Rainbow Polikarbonatnayi Ticaret Anonim Sirketi (IST:RNPOL) Overvalued in 2026?

Based on GuruFocus' analysis, Rainbow Polikarbonatnayi Ticaret Anonim Sirketi stock appears to be undervalued. The current stock price of ₺2.38 is trading 22.5% below its estimated GF Value™ of ₺3.07. GuruFocus considers Rainbow Polikarbonatnayi Ticaret Anonim Sirketi to be Modestly Undervalued.

Key valuation signals for IST:RNPOL:

  • Graham Number: ₺1.11 (28% below median its 10-year median of 1.54)
  • GF Value™: ₺3.07 vs. price of ₺2.38 (22.5% below fair value)
  • GF Score™: 81/100 with 5 warning signs

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


Rainbow Polikarbonatnayi Ticaret Anonim Sirketi Business Description

Address 20. Cad. No:33, Kayseri OSB Mahallesi, Melikgazi, Kayseri, TUR
Rainbow Polikarbonat Sanayi Ticaret Anonim Sirketi is a company based in Turkey engaged in the manufacturing and wholesale of plastic panels and profiles, principally polycarbonate and polypropylene products. Its products include polycarbonate roof panel, rainbow roof panel, polycarbonate H profile and U profile, among others.
81GF Score

Get the complete analysis for IST:RNPOL

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

₺2.38
Price
₺3.07
GF Value