IESFY (Interconexion Electrica ESP) Cyclically Adjusted PS Ratio: 3.25 (As of Jul. 18, 2026) — 37% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
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.

IESFY Interconexion Electrica SA ESP IESFY
73 GF Score
Price $234.00
GF Value $156.87
Valuation Significantly Overvalued
! 13 Warning Signs
View Full Analysis

What is Interconexion Electrica ESP Cyclically Adjusted PS Ratio?

Interconexion Electrica ESP IESFY +16.61% 73 Cyclically Adjusted PS Ratio is 3.25 as of Jul. 18, 2026, which is 37% above its 10-year median of 2.37. GuruFocus rates IESFY with a GF Score™ of 73/100 and a GF Value™ of $156.87 (Significantly Overvalued). The stock has 13 warning signs investors should review. Among 441 Utilities - Regulated companies, Interconexion Electrica ESP ranks worse than 71.43% on this metric.

As of today (2026-07-18), Interconexion Electrica ESP's current share price is $234.00. Interconexion Electrica ESP's Cyclically Adjusted Revenue per Share for the quarter that ended in Mar. 2026 was $72.06. Interconexion Electrica ESP's Cyclically Adjusted PS Ratio for today is 3.25.

The historical rank and industry rank for Interconexion Electrica ESP's Cyclically Adjusted PS Ratio or its related term are showing as below:

IESFY' s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 1.58   Med: 2.37   Max: 4.84
Current: 2.63

During the past years, Interconexion Electrica ESP's highest Cyclically Adjusted PS Ratio was 4.84. The lowest was 1.58. And the median was 2.37.

IESFY's Cyclically Adjusted PS Ratio is ranked worse than
71.43% of 441 companies
in the Utilities - Regulated industry
Industry Median: 1.42 vs IESFY: 2.63

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.

Interconexion Electrica ESP's adjusted revenue per share data for the three months ended in Mar. 2026 was $23.704. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is $72.06 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Interconexion Electrica ESP  (OTCPK:IESFY) 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.


Interconexion Electrica ESP Cyclically Adjusted PS Ratio Related Terms


Interconexion Electrica ESP Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Interconexion Electrica ESP'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.

Interconexion Electrica ESP Cyclically Adjusted PS Ratio Chart

Interconexion Electrica ESP 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 3.29 2.64 1.71 1.63 2.18

Interconexion Electrica ESP Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 1.80 1.82 1.95 2.18 2.39

IESFY vs NEE, SO, DUK: Cyclically Adjusted PS Ratio Comparison

For the Utilities - Regulated Electric subindustry, Interconexion Electrica ESP'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.


Interconexion Electrica ESP Cyclically Adjusted PS Ratio vs Utilities - Regulated Industry

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

* The bar in red indicates where Interconexion Electrica ESP's Cyclically Adjusted PS Ratio falls into.


IESFY
73GF Score
Interconexion Electrica SA ESP IESFY
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Interconexion Electrica ESP 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.

Interconexion Electrica ESP's Cyclically Adjusted PS Ratio for today is calculated as

Cyclically Adjusted PS Ratio=Share Price/ Cyclically Adjusted Revenue per Share
=234.00/72.06
=3.25

* 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.

Interconexion Electrica ESP's Cyclically Adjusted Revenue per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Interconexion Electrica ESP's adjusted Revenue per Share data for the three months ended in Mar. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=23.704/330.2130*330.2130
=23.704

Current CPI (Mar. 2026) = 330.2130.

Interconexion Electrica ESP Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201606 11.762 241.018 16.115
201609 55.038 241.428 75.278
201612 13.700 241.432 18.738
201703 12.316 243.801 16.681
201706 14.218 244.955 19.167
201709 13.776 246.819 18.431
201712 12.478 246.524 16.714
201803 12.319 249.554 16.301
201806 11.942 251.989 15.649
201809 14.415 252.439 18.856
201812 14.878 251.233 19.555
201903 13.312 254.202 17.293
201906 14.056 256.143 18.121
201909 13.117 256.759 16.870
201912 14.465 256.974 18.588
202003 13.345 258.115 17.073
202006 16.239 257.797 20.801
202009 32.701 260.280 41.487
202012 -37.476 260.474 -47.510
202103 14.720 264.877 18.351
202106 17.466 271.696 21.228
202109 17.233 274.310 20.745
202112 17.418 278.802 20.630
202203 15.902 287.504 18.264
202206 19.486 296.311 21.715
202209 18.115 296.808 20.154
202212 17.864 296.797 19.875
202303 18.266 301.836 19.983
202306 18.054 305.109 19.539
202309 17.550 307.789 18.829
202312 19.638 306.746 21.140
202403 21.088 312.332 22.295
202406 20.180 314.175 21.210
202409 23.757 315.301 24.881
202412 21.568 315.605 22.566
202503 21.947 319.799 22.662
202506 18.697 322.561 19.141
202509 23.946 324.800 24.345
202512 27.249 324.054 27.767
202603 23.704 330.213 23.704

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.

What does a Cyclically Adjusted PS Ratio of 3.25 mean?
Interconexion Electrica ESP (IESFY) has a Cyclically Adjusted PS Ratio of 3.25 as of Jul. 18, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Interconexion Electrica ESP and its competitors. This is 37% above median its historical median of 2.37. Over the past decade, Interconexion Electrica ESP's Cyclically Adjusted PS Ratio has ranged from 1.58 to 4.84. According to the industry distribution chart, Interconexion Electrica ESP ranks #315 out of 441 companies in the Utilities - Regulated industry, placing it in the top 71.4%.
Is Interconexion Electrica ESP's Cyclically Adjusted PS Ratio too high?
Interconexion Electrica ESP's current Cyclically Adjusted PS Ratio of 3.25 is 37% above median its 10-year median of 2.37. Over the past 10 years, this metric has ranged from a low of 1.58 to a high of 4.84. The Utilities - Regulated industry median Cyclically Adjusted PS Ratio is 1.42. Interconexion Electrica ESP's value of 3.25 is 128.9% above this industry median. Based on the distribution chart, Interconexion Electrica ESP ranks #315 out of 441 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, Interconexion Electrica ESP has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interconexion Electrica ESP's Cyclically Adjusted PS Ratio compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Interconexion Electrica ESP ranks #315 out of 441 companies for Cyclically Adjusted PS Ratio. This places Interconexion Electrica ESP in the lower half of its industry. The industry median Cyclically Adjusted PS Ratio is 1.42. Interconexion Electrica ESP's value of 3.25 is 128.9% above this benchmark. Historically, Interconexion Electrica ESP's own Cyclically Adjusted PS Ratio has ranged from 1.58 to 4.84 over the past decade. While the company's 10-year median is 2.37 vs. the industry median of 1.42, Interconexion Electrica ESP 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 Cyclically Adjusted PS Ratio for an Utilities - Regulated company?
The median Cyclically Adjusted PS Ratio among Utilities - Regulated companies is 1.42, based on 441 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Interconexion Electrica ESP's current Cyclically Adjusted PS Ratio of 3.25 is 128.9% 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 Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Interconexion Electrica ESP and its competitors. For the Utilities - Regulated industry, the median Cyclically Adjusted PS Ratio is 1.42 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Interconexion Electrica ESP's current Cyclically Adjusted PS Ratio is 3.25, which is 37% above median its own 10-year median of 2.37. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Interconexion Electrica ESP stock overvalued right now?
Based on GuruFocus' analysis, Interconexion Electrica ESP (IESFY) is currently considered Significantly Overvalued. The stock's GF Value™ is $156.87, compared to a current price of $234.00 — trading 49.2% above its estimated fair value. The current Cyclically Adjusted PS Ratio is 3.25, which is 37% above median its 10-year median of 2.37 and 128.9% above the Utilities - Regulated industry median of 1.42. Interconexion Electrica ESP's overall GF Score™ is 73/100 with 13 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For Interconexion Electrica ESP (IESFY), the current Cyclically Adjusted PS Ratio is 3.25 as of Jul. 18, 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 Interconexion Electrica ESP (IESFY) Overvalued in 2026?

Based on GuruFocus' analysis, Interconexion Electrica ESP stock appears to be overvalued. The current stock price of $234.00 is trading 49.2% above its estimated GF Value™ of $156.87. GuruFocus considers Interconexion Electrica ESP to be Significantly Overvalued.

Key valuation signals for IESFY:

  • Cyclically Adjusted PS Ratio: 3.25 (37% above median its 10-year median of 2.37)
  • GF Value™: $156.87 vs. price of $234.00 (49.2% above fair value)
  • GF Score™: 73/100 with 13 warning signs
  • Industry Position: 128.9% above the Utilities - Regulated median (#315 of 441)

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


Interconexion Electrica ESP Business Description

Other Exchanges ISA:Colombia
Address Calle 12, Sur No. 18 -168, Bloque 3 - Piso 2, Medellin, COL, 50022
Interconexion Electrica SA ESP, also known as ISA, is a mixed public services company in which the Colombian state is a majority shareholder. Through its subsidiaries, ISA participates in a variety of infrastructure projects across South and Central America. The company segments its operations into Electric Power Transmission, Roads, Telecommunications and ICT. The company generates the majority of its revenue from its Energy Transmission division where it owns, operates, and maintains high-voltage power transmission systems.
73GF Score

Get the complete analysis for IESFY

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

$234.00
Price
$156.87
GF Value