IOFNF (Iofina) Shiller PE Ratio: (As of Jul. 28, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

IOFNF Iofina PLC IOFNF
69 GF Score
Price $0.78
GF Value $0.40
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is Iofina Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Iofina  (OTCPK:IOFNF) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Iofina Shiller PE Ratio Related Terms


Iofina Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Iofina's Shiller PE Ratio 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.

Iofina Shiller PE Ratio Chart

Iofina Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 58.61

Iofina Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Shiller PE Ratio 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 0.00 0.00 58.61

IOFNF vs LIN, SHW, ECL: Shiller PE Ratio Comparison

For the Specialty Chemicals subindustry, Iofina's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.


Iofina Shiller PE Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Iofina's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Iofina's Shiller PE Ratio falls into.


IOFNF
69GF Score
Iofina PLC IOFNF
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Iofina Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Iofina's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Iofina's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=0.04/139.9000*139.9000
=0.040

Current CPI (Dec25) = 139.9000.

Iofina Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
201612 -0.029 102.200 -0.040
201712 -0.075 105.000 -0.100
201812 -0.009 107.100 -0.012
201912 0.003 108.500 0.004
202012 0.007 109.400 0.009
202112 0.048 114.700 0.059
202212 0.040 125.300 0.045
202312 0.033 130.500 0.035
202412 0.015 135.100 0.016
202512 0.040 139.900 0.040

Add all the adjusted EPS together and divide 10 will get our E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Iofina (IOFNF) Overvalued in 2026?

Based on GuruFocus' analysis, Iofina stock appears to be overvalued. The current stock price of $0.78 is trading 94.2% above its estimated GF Value™ of $0.40. GuruFocus considers Iofina to be Significantly Overvalued.

Key valuation signals for IOFNF:

  • Shiller PE Ratio:
  • GF Value™: $0.40 vs. price of $0.78 (94.2% above fair value)
  • GF Score™: 69/100 with 5 warning signs

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


Iofina Business Description

Other Exchanges IOF:UKIF7:Germany
Address 48 Chancery Lane, London, GBR, WC2A 1JF
Iofina PLC is a holding company engaged in the exploration and isolation of iodine and the production of specialty chemicals. The company's operating segment includes Halogen Derivatives & Iodine and Hemp seeds. Its geographical segments include the United States of America and the United Kingdom and it derives a majority of its revenue from the North America.
69GF Score

Get the complete analysis for IOFNF

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

$0.78
Price
$0.40
GF Value