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Pinnacle West CapitalFRA:PWC -0.44%82 Piotroski F-Score is 5 as of Aug. 10, 2026, which is at its 10-year median of 5.00. GuruFocus rates FRA:PWC with a GF Score™ of 82/100 and a GF Value™ of €80.28 (Fairly Valued). The stock has 15 warning signs investors should review. Among 491 Utilities - Regulated companies, Pinnacle West Capital ranks worse than 54.79% 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
Pinnacle West Capital has an F-score of 6 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Pinnacle West Capital's Piotroski F-Score or its related term are showing as below:
FRA:PWC'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 5 Max: 7
Current: 5
During the past 13 years, the highest Piotroski F-Score of Pinnacle West Capital was 7. The lowest was 3. And the median was 5.
Pinnacle West Capital (FRA:PWC) 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.
Pinnacle West Capital Piotroski F-Score Related Terms
Pinnacle West Capital Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Pinnacle West Capital'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.
FRA:PWC vs OGE, IDA, TXNM: Piotroski F-Score Comparison
For the Utilities - Regulated Electric subindustry, Pinnacle West Capital'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.
Pinnacle West Capital Piotroski F-Score vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Pinnacle West Capital's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Pinnacle West Capital'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.
This Year (Jun26) TTM:
Last Year (Jun25) TTM:
Net Income was 352.053 + 13.154 + 28.476 + 155.002 = €549 Mil. Cash Flow from Operations was 566.571 + 407.17 + 203.531 + 341.971 = €1,519 Mil. Revenue was 1551.271 + 963.455 + 994.401 + 1263.59 = €4,773 Mil. Gross Profit was 737.112 + 349.338 + 377.285 + 532.834 = €1,997 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(25346.902 + 25468.755 + 25646.986 + 26547.392 + 28276.727) / 5 = €26257.3524 Mil. Total Assets at the begining of this year (Jun25) was €25,347 Mil. Long-Term Debt & Capital Lease Obligation was €12,776 Mil. Total Current Assets was €1,739 Mil. Total Current Liabilities was €2,926 Mil.
Net Income was 355.864 + -6.52 + -4.296 + 166.953 = €512 Mil.
Revenue was 1593.69 + 1046.115 + 954.859 + 1178.037 = €4,773 Mil. Gross Profit was 747.252 + 355.269 + 325.692 + 515.985 = €1,944 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(23876.35 + 23704.908 + 24928.136 + 25193.742 + 25346.902) / 5 = €24610.0076 Mil. Total Assets at the begining of last year (Jun24) was €23,876 Mil. Long-Term Debt & Capital Lease Obligation was €10,454 Mil. Total Current Assets was €1,550 Mil. Total Current Liabilities was €2,971 Mil.
*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.
Pinnacle West Capital's current Net Income (TTM) was 549.
==> 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.
Score 1 if positive, 0 if negative.
Pinnacle West Capital's current Cash Flow from Operations (TTM) was 1,519.
==> Positive ==> Score 1.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
Pinnacle West Capital's return on assets of this year was 0.02164702. Pinnacle West Capital's return on assets of last year was 0.02144386.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Pinnacle West Capital's gearing of this year was 0.48655507. Pinnacle West Capital's gearing of last year was 0.42479451.
==> Last year is lower than this year ==> Score 0.
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
Pinnacle West Capital's current ratio of this year was 0.59406817. Pinnacle West Capital's current ratio of last year was 0.52167533.
==> This year's current ratio is higher. ==> Score 1.
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.
Pinnacle West Capital's number of shares in issue this year was 124.494. Pinnacle West Capital's number of shares in issue last year was 121.865.
==> There is larger number of shares in issue this year. ==> Score 0.
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.
Pinnacle West Capital's gross margin of this year was 0.41832964. Pinnacle West Capital's gross margin of last year was 0.40735801.
==> This year's gross margin is higher. ==> Score 1.
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
Pinnacle West Capital's asset turnover of this year was 0.18829587. Pinnacle West Capital's asset turnover of last year was 0.1998924.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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6
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Pinnacle West Capital has an F-score of 6 indicating the company's financial situation is typical for a stable company.
Pinnacle West Capital (FRA:PWC) has a Piotroski F-Score of 5 as of Aug. 10, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Pinnacle West Capital and its competitors. This is near median its historical median of 5.00. Over the past decade, Pinnacle West Capital's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Pinnacle West Capital ranks #269 out of 491 companies in the Utilities - Regulated industry, placing it in the top 54.8%.
Is Pinnacle West Capital's Piotroski F-Score too high?
Pinnacle West Capital's current Piotroski F-Score of 5 is near median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Utilities - Regulated industry median Piotroski F-Score is 6.00. Pinnacle West Capital's value of 5 is 16.7% below this industry median. Based on the distribution chart, Pinnacle West Capital ranks #269 out of 491 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, Pinnacle West Capital has a GF Score™ of 82/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Pinnacle West Capital's Piotroski F-Score compare to OGE and IDA?
According to the Utilities - Regulated industry distribution chart, Pinnacle West Capital ranks #269 out of 491 companies for Piotroski F-Score. This places Pinnacle West Capital in the lower half of its industry. The industry median Piotroski F-Score is 6.00. Pinnacle West Capital's value of 5 is 16.7% below this benchmark. Historically, Pinnacle West Capital's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 6.00, Pinnacle West Capital 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 491 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. Pinnacle West Capital'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 Pinnacle West Capital 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. Pinnacle West Capital's current Piotroski F-Score is 5, which is near median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Pinnacle West Capital stock overvalued right now?
Based on GuruFocus' analysis, Pinnacle West Capital (FRA:PWC) is currently considered Fairly Valued. The stock's GF Value™ is €80.28, compared to a current price of €86.82 — trading 8.1% above its estimated fair value. The current Piotroski F-Score is 5, which is near median its 10-year median of 5.00 and 16.7% below the Utilities - Regulated industry median of 6.00. Pinnacle West Capital's overall GF Score™ is 82/100 with 15 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 Pinnacle West Capital (FRA:PWC), the current Piotroski F-Score is 5 as of Aug. 10, 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 Pinnacle West Capital (FRA:PWC) Overvalued in 2026?
Based on GuruFocus' analysis, Pinnacle West Capital stock appears to be overvalued.
The current stock price of €86.82 is trading 8.1% above its estimated GF Value™ of €80.28.
GuruFocus considers Pinnacle West Capital to be Fairly Valued.
Key valuation signals for FRA:PWC:
Piotroski F-Score: 5 (near median its 10-year median of 5.00)
GF Value™: €80.28 vs. price of €86.82 (8.1% above fair value)
Industry Position: 16.7% below the Utilities - Regulated median (#269 of 491)
No single metric tells the full story. See the FRA:PWC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Pinnacle West is a holding company whose principal subsidiary is Arizona Public Service, a vertically integrated electric utility serving approximately 1.4 million customers across a 35,000-square-mile territory in central Arizona, including the Phoenix area. APS owns or leases 6.5 gigawatts of power generation capacity, including a 29% ownership stake in one of the largest nuclear plants in the US, Palo Verde. Half of the electricity that APS supplies to customers comes from clean energy sources, including nuclear.
82GF Score
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