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What changed 10-K
Item 5. Market for Registrant’s Common Equity
2026-02-25 compared with 2025-02-25 · 1 added, 1 removed, 14 unchanged (13% of the section changed)
7 unchanged sentences
Stock Performance Chart
−Removed: This graph compares the cumulative total shareholder return on Pinnacle West’s common stock during the five years ended December 31, 2024, to the cumulative total returns on the S&P 500 Index and the Edison Electric Index.
+Added: This graph compares the cumulative total shareholder return on Pinnacle West’s common stock during the five years ended December 31, 2025, to the cumulative total returns on the S&P 500 Index and the Edison Electric Institute Index.
The comparison assumes that $100 was invested on December 31, 2020, in Pinnacle West’s common stock and in each of the indices shown and that all of the dividends were reinvested.
5 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.