Pinnacle West Capital (STU:PWC) Moat Score: 7/10 (As of Jul. 05, 2026)


STU:PWC Pinnacle West Capital Corp STU:PWC
77 GF Score
Price €94.88
GF Value €78.08
! 14 Warning Signs
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What is Pinnacle West Capital Moat Score?

Pinnacle West Capital STU:PWC -0.75% 77 Moat Score is 7 as of Jul. 05, 2026. GuruFocus rates STU:PWC with a GF Score™ of 77/100 and a GF Value™ of €78.08. The stock has 14 warning signs investors should review. Among 546 Utilities - Regulated companies, Pinnacle West Capital ranks better than 99.08% on this metric.

Pinnacle West Capital has the Moat Score of 7, which implies that the company might have Wide Moat - Entry-level wide moat, clearly possessing durable advantages.

Pinnacle West Capital has Wide Moat: Pinnacle West Capital Corp benefits from significant regulatory barriers and exclusive licenses in the utility sector. It has strong pricing power, a robust distribution network, and customer loyalty, providing durable competitive advantages.

Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more.

The company's Moat Score is based on these criteria:

1. Market leadership and sustainable market share
2. Network effects and significant customer switching costs
3. Valuable intellectual property and patents
4. Strong brand strength and deep customer loyalty
5. Durable cost advantages (e.g., economies of scale, proprietary technology)
6. Significant regulatory barriers and exclusive licenses
7. Superior distribution network
8. Strong and sustainable pricing power
9. Consistent and impactful innovation and R&D capabilities

Based on the research, GuruFocus believes Pinnacle West Capital might have Wide Moat - Entry-level wide moat, clearly possessing durable advantages.

Pinnacle West Capital  (STU:PWC) Moat Score Explanation

The Moat Score ranges from 0 to 10, with 10 as the highest. GuruFocus divided Moat Score into following 8 categories:

Moat Score Moat Level
10Wide Moat - Exceptionally dominant and durable wide moat
8 - 9Wide Moat - Clear and robust wide moat
7Wide Moat - Entry-level wide moat, clearly possessing durable advantages
6Narrow Moat - Strong narrow moat, clearly distinguishable but not wide
5Narrow Moat - Solid narrow moat
4Narrow Moat - Discernible but modest moat
1 - 3No Moat - Very weak/transient advantages
0No Moat - No discernible moat

Pinnacle West Capital Moat Score Related Terms

STU:PWC vs OGE, IDA, TXNM: Moat Score Comparison

For the Utilities - Regulated Electric subindustry, Pinnacle West Capital's Moat Score, along with its competitors' market caps and Moat 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 Moat Score vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Pinnacle West Capital's Moat Score distribution charts can be found below:

* The bar in red indicates where Pinnacle West Capital's Moat Score falls into.


STU:PWC
77GF Score
Pinnacle West Capital Corp STU:PWC
Moat Score is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about Moat Score →
What does a Moat Score of 7 mean?
Pinnacle West Capital (STU:PWC) has a Moat Score of 7 as of Jul. 05, 2026. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. According to the industry distribution chart, Pinnacle West Capital ranks #5 out of 546 companies in the Utilities - Regulated industry, placing it in the top 0.90000000000001%.
Is Pinnacle West Capital's Moat Score too high?
Pinnacle West Capital's current Moat Score is 7. Based on the distribution chart, Pinnacle West Capital ranks #5 out of 546 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Pinnacle West Capital has a GF Score™ of 77/100, reflecting its overall financial health beyond just this single metric.
How does Pinnacle West Capital's Moat Score compare to OGE and IDA?
According to the Utilities - Regulated industry distribution chart, Pinnacle West Capital ranks #5 out of 546 companies for Moat Score. This places Pinnacle West Capital in the top 1% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Moat Score for an Utilities - Regulated company?
A good Moat Score depends on the Utilities - Regulated industry context. However, Moat Score 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 Moat Score mean?
A high Moat Score can signal that a stock is expensive relative to its fundamentals. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. Pinnacle West Capital's current Moat Score is 7. 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?
Pinnacle West Capital (STU:PWC) has a current Moat Score of 7. The stock's GF Value™ is €78.08, compared to a current price of €94.88 — trading 21.5% above its estimated fair value. The current Moat Score is 7. Pinnacle West Capital's overall GF Score™ is 77/100 with 14 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Moat Score calculated?
Moat Score is calculated from a company's financial statements. For Pinnacle West Capital (STU:PWC), the current Moat Score is 7 as of Jul. 05, 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 (STU:PWC) Overvalued in 2026?

Based on GuruFocus' analysis, Pinnacle West Capital stock appears to be overvalued. The current stock price of €94.88 is trading 21.5% above its estimated GF Value™ of €78.08.

Key valuation signals for STU:PWC:

  • Moat Score: 7
  • GF Value™: €78.08 vs. price of €94.88 (21.5% above fair value)
  • GF Score™: 77/100 with 14 warning signs

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

Pinnacle West Capital Business Description

Other Exchanges PNW:USA0KIT:UK
Address 400 North Fifth Street, P.O. Box 53999, Phoenix, AZ, USA, 85072-3999
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.
77GF Score

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Moat Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€94.88
Price
€78.08
GF Value