Interconexion Electrica ESP (BOG:ISA) Owner Earnings per Share (TTM): -3,506.29 (As of Mar. 2026)

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BOG:ISA Interconexion Electrica SA ESP BOG:ISA
88 GF Score
Price COP30,800.00
GF Value COP20,638.93
Valuation Significantly Overvalued
! 13 Warning Signs
View Full Analysis

What is Interconexion Electrica ESP Owner Earnings per Share (TTM)?

Interconexion Electrica ESP BOG:ISA +2.67% 88 Owner Earnings per Share (TTM) is -3,506.29 as of Mar. 2026. GuruFocus rates BOG:ISA with a GF Score™ of 88/100 and a GF Value™ of COP20,638.93 (Significantly Overvalued). The stock has 13 warning signs investors should review. Among 246 Utilities - Regulated companies, Interconexion Electrica ESP ranks worse than 406503.66% on this metric.

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

Interconexion Electrica ESP's Owner Earnings per Share (TTM) ended in Mar. 2026 was COP-3,506.29. It's Price-to-Owner-Earnings ratio for today is 0.


The historical rank and industry rank for Interconexion Electrica ESP's Owner Earnings per Share (TTM) or its related term are showing as below:


During the past 13 years, the highest Price-to-Owner-Earnings ratio of Interconexion Electrica ESP was 1923.22. The lowest was 21.32. And the median was 174.98.


BOG:ISA's Price-to-Owner-Earnings is not ranked *
in the Utilities - Regulated industry.
Industry Median: 15.725
* Ranked among companies with meaningful Price-to-Owner-Earnings only.

Interconexion Electrica ESP's Earnings per Share (Diluted) for the three months ended in Mar. 2026 was COP503.76. Its Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 was COP2,061.97. It's PE Ratio (TTM) ratio for today is 14.94.

Interconexion Electrica ESP's EPS without NRI for the three months ended in Mar. 2026 was COP503.76. Its EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 was COP2,061.97. It's PE Ratio without NRI ratio for today is 14.94.


Be Aware

Assumption: Companies usually do not report maintenance capital expenditures and growth capital expenditures separately. Here we use estimated numbers and average them over 5 years. The method to estimate maintenance capital expenditures can be found in above part 4.

Note: GuruFocus' Change In Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And it includes non-current parts of assets and liabilities.


Interconexion Electrica ESP Owner Earnings per Share (TTM) Related Terms


Interconexion Electrica ESP Owner Earnings per Share (TTM) Historical Data

* Premium members only.

The historical data trend for Interconexion Electrica ESP's Owner Earnings per Share (TTM) 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 Owner Earnings per Share (TTM) Chart

Interconexion Electrica ESP Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Owner Earnings per Share (TTM)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 144.21 -2,334.61 -215.43 -2,980.95 -3,147.54

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
Owner Earnings per Share (TTM) 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 -3,113.79 -3,910.68 -2,935.27 -3,147.54 -3,506.29

BOG:ISA vs NEE, SO, DUK: Owner Earnings per Share (TTM) Comparison

For the Utilities - Regulated Electric subindustry, Interconexion Electrica ESP's Price-to-Owner-Earnings, along with its competitors' market caps and Price-to-Owner-Earnings 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 Price-to-Owner-Earnings vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Interconexion Electrica ESP's Price-to-Owner-Earnings distribution charts can be found below:

* The bar in red indicates where Interconexion Electrica ESP's Price-to-Owner-Earnings falls into.


BOG:ISA
88GF Score
Interconexion Electrica SA ESP BOG:ISA
Owner Earnings per Share (TTM) is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Interconexion Electrica ESP Owner Earnings per Share (TTM) Calculation

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume. (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

To make it simple, then you will have:

Owner Earnings per Share (TTM) = (Net Income + Depreciation, Depletion and Amortization + Change In Deferred Tax - 5Y Average of Maintenance Capital Expenditure + Change In Working Capital) / Shares Outstanding (Diluted Average)

Interconexion Electrica ESP's Owner Earnings per Share (TTM) Calculation:

TTM / Last Quarter Average of Last 20 Quarters
Net Income 2,284,000
Depreciation, Depletion and Amortization 1,083,000
Change In Deferred Tax 0
5Y Average of Maintenance Capital Expenditure 1,758,127
Change In Working Capital -5,492,710
Shares Outstanding (Diluted Average) 1,108

1. Start with "Net Income" from income statement. Interconexion Electrica ESP's Net Income for the trailing twelve months (TTM) ended in Mar. 2026 was COP2,284,000 Mil.

2. "Depreciation, Depletion and Amortization" is from cashflow statement. Interconexion Electrica ESP's Depreciation, Depletion and Amortization for the trailing twelve months (TTM) ended in Mar. 2026 was COP1,083,000 Mil. This needs to be added back because company does not actually need to pay cash for it. It is a non-cash item.

3. Other non-cash charges usually include "Stock Based Compensation" and "Change In Deferred Tax":
However, to be conservative, GuruFocus will not add Stock Based Compensation back to net income. Interconexion Electrica ESP's Change In Deferred Tax for the trailing twelve months (TTM) ended in Mar. 2026 was COP0 Mil.

4. Average maintenance capital expenditure over a business/industry cycle: 5-Year Average Maintenance Capital Expenditure = COP1,758,127 Mil

It is usually best to take a long-term average of maintenance capital expenditure. Ideally this would be as long as 10 years and include at least one economic downturn. However, since many companies do not have as long as 10-year history, here GuruFocus uses the latest 5 years data to do the calculation. To smooth out unusual years but reflect recent developments, we take an average of the 5 year maintenance capital expenditure.

The following shows how to get maintenance capital expenditure.

First, calculate the revenue change regarding to the previous quarter. If the revenue decreased from the previous quarter, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
Second, if the revenue increased from the previous quarter, then calculate the percentage of Net PPE as of corresponding Revenue.
Growth Capital Expenditure = Percentage of Property, Plant and Equipment as of corresponding Revenue * Revenue Increase
Third, calculate Capital Expenditure (positive) - Growth Capital Expenditure.
If [Capital Expenditure (positive) - Growth Capital Expenditure] was negative, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
If [Capital Expenditure (positive) - Growth Capital Expenditure] was positive, then the Maintenance Capital Expenditure = Capital Expenditure (positive) - Growth Capital Expenditure.
Fourth, get the average of the 5 years maintenance capital expenditure.

Interconexion Electrica ESP's 5-Year Average Maintenance Capital Expenditure = COP1,758,127 Mil

5. "Change In Working Capital" is from cashflow statement. Interconexion Electrica ESP's Change In Working Capital for the trailing twelve months (TTM) ended in Mar. 2026 was COP-5,492,710 Mil.
Note: GuruFocus' Change in Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And sometimes it includes non-current parts of assets and liabilities.

6. Interconexion Electrica ESP's Shares Outstanding (Diluted Average) for the months ended in Mar. 2026 was 1107.678 Mil.

Interconexion Electrica ESP's Onwer Earnings Per Share for Mar. 2026 is calculated as:

Owner Earnings per Share (TTM)
=( Net Income+Depreciation, Depletion and Amortization+Change In Deferred Tax
=( 2284000 +1083000+0
-5Y Avg of Maintenance CAPEX+Change In Working Capital )/Shares Outstanding (Diluted Average)
-1758127.1050873+-5492710)/1107.678
=-3,506.29

Price-to-Owner-Earnings=Current Price/Owner Earnings per Share (TTM)
=30800.00/-3,506.29
=0

* 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.

What does a Owner Earnings per Share (TTM) of -3,506.29 mean?
Interconexion Electrica ESP (BOG:ISA) has a Owner Earnings per Share (TTM) of -3,506.29 as of Mar. 2026. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Interconexion Electrica ESP. Over the past decade, Interconexion Electrica ESP's Owner Earnings per Share (TTM) has ranged from 21.32 to 1,923.22. According to the industry distribution chart, Interconexion Electrica ESP ranks #999999 out of 246 companies in the Utilities - Regulated industry.
Is Interconexion Electrica ESP's Owner Earnings per Share (TTM) too high?
Interconexion Electrica ESP's current Owner Earnings per Share (TTM) is -3,506.29. Over the past 10 years, this metric has ranged from a low of 21.32 to a high of 1,923.22. Based on the distribution chart, Interconexion Electrica ESP ranks #999999 out of 246 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. Overall, Interconexion Electrica ESP has a GF Score™ of 88/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interconexion Electrica ESP's Owner Earnings per Share (TTM) compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Interconexion Electrica ESP ranks #999999 out of 246 companies for Owner Earnings per Share (TTM). This places Interconexion Electrica ESP in the lower half of its industry. The industry median Owner Earnings per Share (TTM) is 15.73. Historically, Interconexion Electrica ESP's own Owner Earnings per Share (TTM) has ranged from 21.32 to 1,923.22 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 Owner Earnings per Share (TTM) for an Utilities - Regulated company?
The median Owner Earnings per Share (TTM) among Utilities - Regulated companies is 15.73, based on 246 companies in the industry. Companies in the top quartile (top 25%) have a Owner Earnings per Share (TTM) significantly above this median, while those in the bottom quartile fall well below. However, Owner Earnings per Share (TTM) 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 Owner Earnings per Share (TTM) mean?
A high Owner Earnings per Share (TTM) can signal that a stock is expensive relative to its fundamentals. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Interconexion Electrica ESP. For the Utilities - Regulated industry, the median Owner Earnings per Share (TTM) is 15.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Interconexion Electrica ESP's current Owner Earnings per Share (TTM) is -3,506.29. 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 (BOG:ISA) is currently considered Significantly Overvalued. The stock's GF Value™ is COP20,638.93, compared to a current price of COP30,800.00 — trading 49.2% above its estimated fair value. The current Owner Earnings per Share (TTM) is -3,506.29. Interconexion Electrica ESP's overall GF Score™ is 88/100 with 13 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Owner Earnings per Share (TTM) calculated?
Owner Earnings per Share (TTM) is calculated from a company's financial statements. For Interconexion Electrica ESP (BOG:ISA), the current Owner Earnings per Share (TTM) is -3,506.29 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 Interconexion Electrica ESP (BOG:ISA) Overvalued in 2026?

Based on GuruFocus' analysis, Interconexion Electrica ESP stock appears to be overvalued. The current stock price of COP30,800.00 is trading 49.2% above its estimated GF Value™ of COP20,638.93. GuruFocus considers Interconexion Electrica ESP to be Significantly Overvalued.

Key valuation signals for BOG:ISA:

  • Owner Earnings per Share (TTM): -3,506.29
  • GF Value™: COP20,638.93 vs. price of COP30,800.00 (49.2% above fair value)
  • GF Score™: 88/100 with 13 warning signs

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


Interconexion Electrica ESP Business Description

Other Exchanges IESFY:USA
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.
88GF Score

Get the complete analysis for BOG:ISA

Owner Earnings per Share (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

COP30,800.00
Price
COP20,638.93
GF Value