Interconexion Electrica ESPBOG:ISA +1.90%83 ROC (Joel Greenblatt) % is 39.78% as of Mar. 2026, which is 2% below its 10-year median of 40.52. GuruFocus rates BOG:ISA with a GF Score™ of 83/100 and a GF Value™ of COP20,579.10 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 504 Utilities - Regulated companies, Interconexion Electrica ESP ranks better than 85.32% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Interconexion Electrica ESP's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 39.78%.
The historical rank and industry rank for Interconexion Electrica ESP's ROC (Joel Greenblatt) % or its related term are showing as below:
BOG:ISA'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 34.91 Med: 40.52 Max: 116.85
Current: 40.08
During the past 13 years, Interconexion Electrica ESP's highest ROC (Joel Greenblatt) % was 116.85%. The lowest was 34.91%. And the median was 40.52%.
BOG:ISA's ROC (Joel Greenblatt) % is ranked better than 85.32% of 504
companies
in the Utilities - Regulated industry
Industry Median: 10.745
vs BOG:ISA: 40.08
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
* 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.
BOG:ISA vs NEE, SO, DUK: ROC (Joel Greenblatt) % Comparison
For the Utilities - Regulated Electric subindustry, Interconexion Electrica ESP's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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 ROC (Joel Greenblatt) % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Interconexion Electrica ESP's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Interconexion Electrica ESP's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) EBIT data.
* 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 ROC (Joel Greenblatt) % of 39.78% mean?
Interconexion Electrica ESP (BOG:ISA) has a ROC (Joel Greenblatt) % of 39.78% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Interconexion Electrica ESP and its competitors. This is near median its historical median of 40.52. Over the past decade, Interconexion Electrica ESP's ROC (Joel Greenblatt) % has ranged from 34.91 to 116.85. According to the industry distribution chart, Interconexion Electrica ESP ranks #74 out of 504 companies in the Utilities - Regulated industry, placing it in the top 14.7%.
Is Interconexion Electrica ESP's ROC (Joel Greenblatt) % too high?
Interconexion Electrica ESP's current ROC (Joel Greenblatt) % of 39.78% is near median its 10-year median of 40.52. Over the past 10 years, this metric has ranged from a low of 34.91 to a high of 116.85. The Utilities - Regulated industry median ROC (Joel Greenblatt) % is 10.75. Interconexion Electrica ESP's value of 39.78% is 270.2% above this industry median. Based on the distribution chart, Interconexion Electrica ESP ranks #74 out of 504 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Interconexion Electrica ESP has a GF Score™ of 83/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interconexion Electrica ESP's ROC (Joel Greenblatt) % compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Interconexion Electrica ESP ranks #74 out of 504 companies for ROC (Joel Greenblatt) %. This places Interconexion Electrica ESP in the top 15% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 10.75. Interconexion Electrica ESP's value of 39.78% is 270.2% above this benchmark. Historically, Interconexion Electrica ESP's own ROC (Joel Greenblatt) % has ranged from 34.91 to 116.85 over the past decade. While the company's 10-year median is 40.52 vs. the industry median of 10.75, 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 ROC (Joel Greenblatt) % for an Utilities - Regulated company?
The median ROC (Joel Greenblatt) % among Utilities - Regulated companies is 10.75, based on 504 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Interconexion Electrica ESP's current ROC (Joel Greenblatt) % of 39.78% is 270.2% 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Interconexion Electrica ESP and its competitors. For the Utilities - Regulated industry, the median ROC (Joel Greenblatt) % is 10.75 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Interconexion Electrica ESP's current ROC (Joel Greenblatt) % is 39.78%, which is near median its own 10-year median of 40.52. 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 COP20,579.10, compared to a current price of COP30,100.00 — trading 46.3% above its estimated fair value. The current ROC (Joel Greenblatt) % is 39.78%, which is near median its 10-year median of 40.52 and 270.2% above the Utilities - Regulated industry median of 10.75. Interconexion Electrica ESP's overall GF Score™ is 83/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Interconexion Electrica ESP (BOG:ISA), the current ROC (Joel Greenblatt) % is 39.78% 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 COP30,100.00 is trading 46.3% above its estimated GF Value™ of COP20,579.10.
GuruFocus considers Interconexion Electrica ESP to be Significantly Overvalued.
Key valuation signals for BOG:ISA:
ROC (Joel Greenblatt) %: 39.78% (near median its 10-year median of 40.52)
GF Value™: COP20,579.10 vs. price of COP30,100.00 (46.3% above fair value)
Industry Position: 270.2% above the Utilities - Regulated median (#74 of 504)
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 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.
83GF Score
Get the complete analysis for BOG:ISA
ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BOG:ISA has been successfully added to your 
