IRDEF (Iren SpA) Cyclically Adjusted PS Ratio: (As of Sep. 21, 2026)

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

IRDEF Iren SpA IRDEF
71 GF Score
Price $2.88
GF Value $2.68
! 5 Warning Signs
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What is Iren SpA Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Iren SpA  (OTCPK:IRDEF) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.


Iren SpA Cyclically Adjusted PS Ratio Related Terms


Iren SpA Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Iren SpA's Cyclically Adjusted PS 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.

Iren SpA Cyclically Adjusted PS Ratio Chart

Iren SpA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.82 0.46 0.53 0.46 0.66

Iren SpA Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS 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 0.67 0.65 0.67 0.54 0.53

IRDEF vs SRE: Cyclically Adjusted PS Ratio Comparison

For the Utilities - Diversified subindustry, Iren SpA's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS 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.


Iren SpA Cyclically Adjusted PS Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Iren SpA's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where Iren SpA's Cyclically Adjusted PS Ratio falls into.


IRDEF
71GF Score
Iren SpA IRDEF
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Iren SpA Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.

Iren SpA's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Iren SpA's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.205/126.4000*126.4000
=1.205

Current CPI (Jun. 2026) = 126.4000.

Iren SpA Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 0.552 100.100 0.697
201612 0.832 100.300 1.049
201703 0.846 101.000 1.059
201706 0.589 101.100 0.736
201709 0.669 101.200 0.836
201712 0.925 101.200 1.155
201803 0.969 101.800 1.203
201806 0.701 102.400 0.865
201809 0.750 102.600 0.924
201812 1.011 102.300 1.249
201903 1.078 102.800 1.325
201906 0.794 103.100 0.973
201909 0.778 102.900 0.956
201912 0.871 102.800 1.071
202003 0.884 102.900 1.086
202006 0.599 102.900 0.736
202009 0.687 102.300 0.849
202012 0.962 102.600 1.185
202103 1.028 103.700 1.253
202106 0.817 104.200 0.991
202109 0.964 104.900 1.162
202112 1.612 106.600 1.911
202203 1.884 110.400 2.157
202206 1.242 112.500 1.395
202209 1.468 114.200 1.625
202212 1.675 119.000 1.779
202303 1.641 118.800 1.746
202306 0.968 119.700 1.022
202309 1.167 120.300 1.226
202312 1.526 119.700 1.611
202403 1.305 120.200 1.372
202406 0.918 120.700 0.961
202409 1.224 121.200 1.277
202412 1.526 121.200 1.591
202503 1.687 122.500 1.741
202506 1.149 122.700 1.184
202509 1.196 123.100 1.228
202512 1.509 122.600 1.556
202603 1.620 124.560 1.644
202606 1.205 126.400 1.205

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue per Share.

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 Iren SpA (IRDEF) Overvalued in 2026?

Based on GuruFocus' analysis, Iren SpA stock appears to be overvalued. The current stock price of $2.88 is trading 7.5% above its estimated GF Value™ of $2.68.

Key valuation signals for IRDEF:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: $2.68 vs. price of $2.88 (7.5% above fair value)
  • GF Score™: 71/100 with 5 warning signs

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


Iren SpA Business Description

Address Via Nubi di Magellano, 30, Reggio Emilia, ITA, 42123
Iren SpA is a multi-service Italian utilities holding company that produces and distributes electricity and natural gas. It also provides district heating, water, and environmental services. Iren has five operating companies that include Iren Acqua Gas, Iren Energia (electricity and thermal production), Iren Mercato (sale of electricity, gas, and district heating), Iren Emilia (gas distribution), and Iren Ambiente (environmental services). The company primarily uses hydroelectric, cogeneration, and wind power as energy sources. The majority of revenue is derived from the distribution and sale of electricity and natural gas products and services.
71GF Score

Get the complete analysis for IRDEF

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

$2.88
Price
$2.68
GF Value