Historical annual and monthly returns for Pinnacle West Capital (PNW).
For Pinnacle West Capital (PNW), the strongest completed calendar year was 2000, when the stock returned 62.1%, while its weakest was 2008, with a return of -19.4%. Across the 26 completed calendar years from 2000 through 2025, its average annual return was 10.2% and its compounded annual return was 8.8%. PNW posted positive returns in 17 of those 26 years (65%). In 2025, the latest completed year, it returned 8.9%. In 2026 year to date, PNW has returned 6.4%.
Returns are calculated from the adjusted daily closing prices for Pinnacle West Capital (PNW). Annual returns measure the percentage change between the final available trading prices of consecutive calendar years. Monthly returns use the corresponding month-end observations. Adjusted prices account for stock splits and distributions when supplied by the market-data provider. Results are nominal and are not adjusted for inflation.
