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.
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.
Luz Del SurALIM:LUSURC1 54 Piotroski F-Score is 5 as of Jul. 30, 2026, which is 29% below its 10-year median of 7.00. GuruFocus rates LIM:LUSURC1 with a GF Score™ of 54/100 and a GF Value™ of S/.16.90 (Modestly Undervalued). The stock has 8 warning signs investors should review. Among 490 Utilities - Regulated companies, Luz Del SurA ranks worse than 53.88% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Luz Del SurA has an F-score of 5 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Luz Del SurA's Piotroski F-Score or its related term are showing as below:
LIM:LUSURC1'
s Piotroski F-Score Range Over the Past 10 Years
Min: 5 Med: 7 Max: 8
Current: 5
During the past 13 years, the highest Piotroski F-Score of Luz Del SurA was 8. The lowest was 5. And the median was 7.
Luz Del SurA (LIM:LUSURC1) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Luz Del SurA Piotroski F-Score Related Terms
Luz Del SurA Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Luz Del SurA's Piotroski F-Score 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.
LIM:LUSURC1 vs NEE, SO, DUK: Piotroski F-Score Comparison
For the Utilities - Regulated Electric subindustry, Luz Del SurA's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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 Piotroski F-Score vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Luz Del SurA's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Luz Del SurA's Piotroski F-Score falls into.
* 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Luz Del SurA's current Net Income (TTM) was 716.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Luz Del SurA's return on assets of this year was 0.06362386. Luz Del SurA's return on assets of last year was 0.0826728.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Luz Del SurA's gearing of this year was 0.23523382. Luz Del SurA's gearing of last year was 0.26563226.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Luz Del SurA's current ratio of this year was 0.45873119. Luz Del SurA's current ratio of last year was 0.54224994.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Luz Del SurA's number of shares in issue this year was 486.951. Luz Del SurA's number of shares in issue last year was 486.951.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Luz Del SurA's gross margin of this year was 0.30298753. Luz Del SurA's gross margin of last year was 0.32097394.
==> Last year's gross margin is higher ==> Score 0.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Luz Del SurA's asset turnover of this year was 0.41461272. Luz Del SurA's asset turnover of last year was 0.52938777.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
=
Que. 1
+
Que. 2
+
Que. 3
+
Que. 4
+
Que. 5
+
Que. 6
+
Que. 7
+
Que. 8
+
Que. 9
=
1
+
1
+
0
+
1
+
1
+
0
+
1
+
0
+
0
=
5
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Luz Del SurA has an F-score of 5 indicating the company's financial situation is typical for a stable company.
Luz Del SurA (LIM:LUSURC1) has a Piotroski F-Score of 5 as of Jul. 30, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Luz Del SurA and its competitors. This is 29% below median its historical median of 7.00. Over the past decade, Luz Del SurA's Piotroski F-Score has ranged from 5.00 to 8.00. According to the industry distribution chart, Luz Del SurA ranks #264 out of 490 companies in the Utilities - Regulated industry, placing it in the top 53.9%.
Is Luz Del SurA's Piotroski F-Score too high?
Luz Del SurA's current Piotroski F-Score of 5 is 29% below median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 5.00 to a high of 8.00. The Utilities - Regulated industry median Piotroski F-Score is 6.00. Luz Del SurA's value of 5 is 16.7% below this industry median. Based on the distribution chart, Luz Del SurA ranks #264 out of 490 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, Luz Del SurA has a GF Score™ of 54/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Luz Del SurA's Piotroski F-Score compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Luz Del SurA ranks #264 out of 490 companies for Piotroski F-Score. This places Luz Del SurA in the lower half of its industry. The industry median Piotroski F-Score is 6.00. Luz Del SurA's value of 5 is 16.7% below this benchmark. Historically, Luz Del SurA's own Piotroski F-Score has ranged from 5.00 to 8.00 over the past decade. While the company's 10-year median is 7.00 vs. the industry median of 6.00, Luz Del SurA has consistently been below 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 Piotroski F-Score for an Utilities - Regulated company?
The median Piotroski F-Score among Utilities - Regulated companies is 6.00, based on 490 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Luz Del SurA's current Piotroski F-Score of 5 is 16.7% below 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Luz Del SurA and its competitors. For the Utilities - Regulated industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Luz Del SurA's current Piotroski F-Score is 5, which is 29% below median its own 10-year median of 7.00. 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/.16.90, compared to a current price of S/.13.15 — trading 22.2% below its estimated fair value. The current Piotroski F-Score is 5, which is 29% below median its 10-year median of 7.00 and 16.7% below the Utilities - Regulated industry median of 6.00. Luz Del SurA's overall GF Score™ is 54/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Luz Del SurA (LIM:LUSURC1), the current Piotroski F-Score is 5 as of Jul. 30, 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 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/.13.15 is trading 22.2% below its estimated GF Value™ of S/.16.90.
GuruFocus considers Luz Del SurA to be Modestly Undervalued.
Key valuation signals for LIM:LUSURC1:
Piotroski F-Score: 5 (29% below median its 10-year median of 7.00)
GF Value™: S/.16.90 vs. price of S/.13.15 (22.2% below fair value)
Industry Position: 16.7% below the Utilities - Regulated median (#264 of 490)
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 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.
54GF Score
Get the complete analysis for LIM:LUSURC1
Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
LIM:LUSURC1 has been successfully added to your 
