Luz Del SurA (LIM:LUSURC1) Effective Interest Rate on Debt %: 5.17% (As of Dec. 2025)

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LIM:LUSURC1 Luz Del Sur SAA LIM:LUSURC1
57 GF Score
Price S/.13.00
GF Value S/.17.01
Valuation Modestly Undervalued
! 8 Warning Signs
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What is Luz Del SurA Effective Interest Rate on Debt %?

Luz Del SurA LIM:LUSURC1 57 Effective Interest Rate on Debt % is 5.17% as of Dec. 2025. GuruFocus rates LIM:LUSURC1 with a GF Score™ of 57/100 and a GF Value™ of S/.17.01 (Modestly Undervalued). The stock has 8 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Luz Del SurA's annualized positive value of Interest Expense for the quarter that ended in Dec. 2025 was S/.242 Mil. Luz Del SurA's average total debt for the quarter that ended in Dec. 2025 was S/.4,676 Mil. Therefore, Luz Del SurA's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 was 5.17%.


Luz Del SurA  (LIM:LUSURC1) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Luz Del SurA Effective Interest Rate on Debt % Related Terms


Luz Del SurA Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Luz Del SurA's Effective Interest Rate on Debt % 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.

Luz Del SurA Effective Interest Rate on Debt % Chart

Luz Del SurA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.23 4.73 6.18 6.31 5.17

Luz Del SurA Semi-Annual Data
Dec06 Dec07 Dec08 Dec09 Dec10 Dec11 Dec12 Dec13 Dec14 Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt % 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 4.23 4.73 6.18 6.31 5.17

LIM:LUSURC1 vs NEE, SO, DUK: Effective Interest Rate on Debt % Comparison

For the Utilities - Regulated Electric subindustry, Luz Del SurA's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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.


Luz Del SurA Effective Interest Rate on Debt % vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Luz Del SurA's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Luz Del SurA's Effective Interest Rate on Debt % falls into.


LIM:LUSURC1
57GF Score
Luz Del Sur SAA LIM:LUSURC1
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Luz Del SurA Effective Interest Rate on Debt % Calculation

Luz Del SurA's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -241.613/( (4496.032+4855.573)/ 2 )
=-1  *  -241.613/4675.8025
=5.17 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2662.165 + 1833.867
=4496.032

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2798.303 + 2057.27
=4855.573

Luz Del SurA's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2024 )+Total Debt  (Q: Dec. 2025 ))/ count )
=-1  *  -241.613/( (4496.032+4855.573)/ 2 )
=-1  *  -241.613/4675.8025
=5.17 %

where

Total Debt  (Q: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2662.165 + 1833.867
=4496.032

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=2798.303 + 2057.27
=4855.573

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is one times the annual (Dec. 2025) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 5.17% mean?
Luz Del SurA (LIM:LUSURC1) has a Effective Interest Rate on Debt % of 5.17% as of Dec. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Luz Del SurA and its competitors.
Is Luz Del SurA's Effective Interest Rate on Debt % too high?
Luz Del SurA's current Effective Interest Rate on Debt % is 5.17%. Overall, Luz Del SurA has a GF Score™ of 57/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Luz Del SurA's Effective Interest Rate on Debt % compare to NEE and SO?
Luz Del SurA's Effective Interest Rate on Debt % of 5.17% can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for an Utilities - Regulated company?
A good Effective Interest Rate on Debt % depends on the Utilities - Regulated industry context. However, Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Luz Del SurA and its competitors. Luz Del SurA's current Effective Interest Rate on Debt % is 5.17%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Luz Del SurA stock overvalued right now?
Based on GuruFocus' analysis, Luz Del SurA (LIM:LUSURC1) is currently considered Modestly Undervalued. The stock's GF Value™ is S/.17.01, compared to a current price of S/.13.00 — trading 23.6% below its estimated fair value. The current Effective Interest Rate on Debt % is 5.17%. Luz Del SurA's overall GF Score™ is 57/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Luz Del SurA (LIM:LUSURC1), the current Effective Interest Rate on Debt % is 5.17% as of Dec. 2025. 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 Luz Del SurA (LIM:LUSURC1) Overvalued in 2026?

Based on GuruFocus' analysis, Luz Del SurA stock appears to be undervalued. The current stock price of S/.13.00 is trading 23.6% below its estimated GF Value™ of S/.17.01. GuruFocus considers Luz Del SurA to be Modestly Undervalued.

Key valuation signals for LIM:LUSURC1:

  • Effective Interest Rate on Debt %: 5.17%
  • GF Value™: S/.17.01 vs. price of S/.13.00 (23.6% below fair value)
  • GF Score™: 57/100 with 8 warning signs

No single metric tells the full story. See the LIM:LUSURC1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Luz Del SurA Business Description

Address Av Canaval y Moreyra 380, Piso 17, San Isidro, Lima, PER
Luz Del Sur SAA is a Peru-based electric power distribution company which provides service to approximately 900 thousand clients. The company also provides other services such as maintenance of internal installations and electrical networks, as well as energy diagnoses. It also focuses on expansion and improvement of the electrical grid, construction of transmission and distribution substations, and purchase of machinery and equipment.
57GF Score

Get the complete analysis for LIM:LUSURC1

Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

S/.13.00
Price
S/.17.01
GF Value