Revenue growth accelerated to 11.4% in 2026Q1, though operating margins remain highly sensitive to seasonal demand, fluctuating from 5.5% in 2025Q1 to 34.9% in 2026Q1.
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 | Dec'05 | Dec'04 | Dec'03 | Dec'02 | Dec'01 | Dec'00 | Dec'99 | Dec'98 | Dec'97 | Dec'96 |
|---|
| Revenue | 5.46B | 5.34B | 5.12B | 4.7B | 4.32B | 3.8B | 3.59B | 3.47B | 3.69B | 3.57B | 3.5B | 3.5B | 3.49B | 3.45B | 3.3B | 3.24B | 3.26B | 3.3B | 3.37B | 3.52B | 3.4B | 2.99B | 2.9B | 2.82B | 2.64B | 4.55B | 3.69B | 2.42B | 2.13B | 2B | 1.82B |
| Revenue Growth % | 4.84% | 4.2% | 9.13% | 8.59% | 13.68% | 6.05% | 3.34% | -5.96% | 3.53% | 1.9% | 0.09% | 0.11% | 1.07% | 4.63% | 1.86% | -0.68% | -1.01% | -2.08% | -4.44% | 3.58% | 13.85% | 3.04% | 2.91% | 6.85% | -42.06% | 23.34% | 52.27% | 13.74% | 6.79% | 9.75% | 8.86% |
| Cost of Revenue | 3.24B | 3.98B | 2.99B | 2.85B | 2.62B | 2.11B | 1.95B | 1.98B | 2.11B | 1.93B | 2.01B | 1.97B | 2.09B | 2.02B | 1.88B | 1.91B | 1.92B | 1.18B | 1.43B | 1.44B | 1.25B | 888.23M | 888.1M | 862.18M | 531.9M | 735.84M | 1.93B | 796.1M | 537.5M | 436.6M | 325.5M |
| Gross Profit | 2.22B | 1.36B | 2.14B | 1.84B | 1.71B | 1.7B | 1.63B | 1.49B | 1.58B | 1.63B | 1.49B | 1.53B | 1.4B | 1.43B | 1.42B | 1.33B | 1.27B | 1.98B | 1.88B | 2.09B | 2.15B | 2.1B | 1.94B | 1.9B | 1.87B | 1.9B | 1.76B | 1.63B | 1.59B | 1.56B | 1.49B |
| Gross Margin % | 40.72% | 25.41% | 41.7% | 39.28% | 39.5% | 44.62% | 45.57% | 42.85% | 42.76% | 45.86% | 42.63% | 43.65% | 40.2% | 41.52% | 43.07% | 40.96% | 38.98% | 59.9% | 55.86% | 59.27% | 63.22% | 70.27% | 66.93% | 67.31% | 71.03% | 41.72% | 47.57% | 67.15% | 74.77% | 78.12% | 82.09% |
| Gross Profit Growth % | - | -36.52% | 15.86% | 8% | 0.63% | 3.83% | 9.9% | -5.77% | -3.46% | 9.62% | -2.25% | 8.69% | -2.12% | 0.84% | 7.13% | 4.36% | -35.59% | 5.01% | -9.94% | -2.88% | 2.42% | 8.18% | 2.33% | 1.24% | -1.35% | 8.18% | 7.87% | 2.14% | 2.22% | 4.44% | 6.59% |
| Operating Expenses | 718.94M | 238.48M | 1.13B | 1.02B | 976.06M | 891.91M | 846.5M | 815.4M | 804.7M | 725.13M | 655.87M | 671.17M | 592.54M | 587.87M | 570.49M | 581.12M | 557.32M | 1.36B | 1.38B | 1.47B | 1.53B | 1.58B | 1.42B | 1.42B | 1.32B | 1.22B | 1.08B | 1.05B | 1.03B | 1B | 948.4M |
| Other Operating Expenses | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| EBITDA | 2.46B | 2.09B | 1.97B | 1.68B | 1.55B | 1.52B | 1.47B | 1.34B | 1.42B | 1.52B | 1.4B | 1.43B | 1.31B | 1.34B | 1.33B | 1.24B | 1.19B | 1.07B | 929.18M | 1.02B | 1.27B | 896.89M | 950.13M | 937.15M | 1.01B | 1.13B | 1.1B | 995.75M | 979.8M | 2B | 1.82B |
| EBITDA Margin % | 45.11% | 39.1% | 38.41% | 35.75% | 35.84% | 40.08% | 41.1% | 38.49% | 38.6% | 42.64% | 40.03% | 40.8% | 37.45% | 38.75% | 40.37% | 38.26% | 36.39% | 32.36% | 27.6% | 29.04% | 37.36% | 30.02% | 32.77% | 33.26% | 38.15% | 24.88% | 29.82% | 41.09% | 45.99% | 99.99% | 100% |
| EBITDA Growth % | 24.16% | 6.07% | 17.24% | 8.33% | 1.66% | 3.39% | 10.35% | -6.21% | -6.3% | 8.55% | -1.8% | 9.06% | -2.31% | 0.42% | 7.48% | 4.43% | 11.31% | 14.83% | -9.18% | -19.5% | 41.71% | -5.6% | 1.38% | -6.84% | -11.15% | 2.89% | 10.52% | 1.63% | -50.89% | 9.75% | 116.71% |
| Depreciation & Amortization | 958.82M | 969.62M | 956.18M | 854.14M | 817.81M | 719.14M | 686.25M | 664.14M | 650.96M | 610.63M | 565.01M | 571.66M | 496.49M | 492.32M | 481.26M | 493.78M | 472.81M | 450.86M | 423.97M | 403.9M | 652.1M | 381.6M | 432.16M | 463.9M | 455.27M | 456.26M | 424.49M | 417M | 0 | 0 | 0 |
| D&A / Revenue % | 17.57% | 18.16% | 18.66% | 18.19% | 18.91% | 18.91% | 19.13% | 19.13% | 17.64% | 17.13% | 16.15% | 16.35% | 14.22% | 14.25% | 14.58% | 15.23% | 14.49% | 13.67% | 12.59% | 11.46% | 19.17% | 12.77% | 14.9% | 16.46% | 17.26% | 10.02% | 11.5% | 17.21% | 0% | 0% | 0% |
| Operating Income (EBIT) | 1.5B | 1.12B | 1.01B | 824.64M | 731.91M | 805.31M | 788.15M | 671.96M | 773.69M | 909.76M | 835.61M | 854.6M | 811.24M | 846.32M | 851.75M | 746.51M | 714.88M | 616.13M | 505.21M | 619.25M | 618.87M | 515.29M | 517.97M | 473.25M | 550.74M | 676.02M | 675.97M | 578.75M | 567.2M | 557.7M | 543.9M |
| Operating Margin % | 27.54% | 20.94% | 19.75% | 17.56% | 16.93% | 21.17% | 21.97% | 19.36% | 20.96% | 25.52% | 23.88% | 24.45% | 23.23% | 24.5% | 25.8% | 23.03% | 21.9% | 18.69% | 15% | 17.57% | 18.19% | 17.25% | 17.86% | 16.79% | 20.88% | 14.85% | 18.32% | 23.88% | 26.62% | 27.95% | 29.92% |
| Operating Income Growth % | - | 10.49% | 22.73% | 12.67% | -9.11% | 2.18% | 17.29% | -13.15% | -14.96% | 8.87% | -2.22% | 5.34% | -4.15% | -0.64% | 14.1% | 4.42% | 16.03% | 21.96% | -18.42% | 0.06% | 20.1% | -0.52% | 9.45% | -14.07% | -18.53% | 0.01% | 16.8% | 2.04% | 1.7% | 2.54% | -3.31% |
| Interest Expense | 4M | 421.97M | 377.47M | 331.32M | 255.54M | 233.26M | 228.97M | 216.72M | 218.28M | 197.68M | 185.75M | 178.71M | 185.49M | 187.03M | 199.65M | 223.64M | 227.63M | 223.11M | 197.47M | 212.62M | 196.83M | 185.09M | 195.86M | 204.59M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Interest Coverage | - | 2.75x | 2.95x | 2.80x | 3.25x | 4.20x | 3.83x | 3.50x | 4.04x | 4.88x | 4.76x | 4.88x | 4.47x | 4.59x | 4.29x | 3.41x | 3.22x | 2.79x | 2.56x | 2.91x | 3.14x | 2.78x | 2.64x | 2.31x | - | - | - | - | - | - | - |
| Interest / Revenue % | 0.07% | 7.9% | 7.37% | 7.06% | 5.91% | 6.13% | 6.38% | 6.24% | 5.91% | 5.54% | 5.31% | 5.11% | 5.31% | 5.41% | 6.05% | 6.9% | 6.97% | 6.77% | 5.86% | 6.03% | 5.79% | 6.19% | 6.75% | 7.26% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Non-Operating Income | -4M | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K | -1000K |
| Pretax Income | 781.17M | 738.37M | 736.56M | 595.69M | 575.65M | 746.03M | 648.23M | 542.04M | 664.44M | 766.22M | 697.94M | 693.91M | 644.4M | 670.56M | 656.31M | 539.24M | 514.92M | 105.06M | 278.96M | 449.7M | 473.56M | 350.06M | 364.07M | 336.14M | 353.25M | 540.9M | 526.18M | 437.9M | 407.5M | 386.2M | 339.6M |
| Pretax Margin % | 14.31% | 13.83% | 14.37% | 12.69% | 13.31% | 19.61% | 18.07% | 15.62% | 18% | 21.49% | 19.95% | 19.85% | 18.46% | 19.41% | 19.88% | 16.64% | 15.78% | 3.19% | 8.29% | 12.76% | 13.92% | 11.72% | 12.56% | 11.93% | 13.39% | 11.88% | 14.26% | 18.07% | 19.13% | 19.36% | 18.68% |
| Income Tax | 114.08M | 106.73M | 110.53M | 76.91M | 74.83M | 110.09M | 78.17M | -15.77M | 133.9M | 258.27M | 236.41M | 237.72M | 220.71M | 230.59M | 237.32M | 183.6M | 164.32M | 37.83M | 65.41M | 150.92M | 156.42M | 126.89M | 128.86M | 105.56M | 138.1M | 213.53M | 223.85M | 168.1M | 164.6M | 150.3M | 128.5M |
| Effective Tax Rate % | 14.6% | 14.45% | 15.01% | 12.91% | 13% | 14.76% | 12.06% | -2.91% | 20.15% | 33.71% | 33.87% | 34.26% | 34.25% | 34.39% | 36.16% | 34.05% | 31.91% | 36.01% | 23.45% | 33.56% | 33.03% | 36.25% | 35.39% | 31.4% | 39.09% | 39.48% | 42.54% | 38.39% | 40.39% | 38.92% | 37.84% |
| Net Income | 654.1M | 616.53M | 608.81M | 501.56M | 483.6M | 618.72M | 550.56M | 538.32M | 511.05M | 488.46M | 442.03M | 437.26M | 397.6M | 406.07M | 381.54M | 339.47M | 350.05M | 68.33M | 242.13M | 307.14M | 327.25M | 176.27M | 243.19M | 240.58M | 149.41M | 312.17M | 302.33M | 167.9M | 242.9M | 235.9M | 181.3M |
| Net Margin % | 11.99% | 11.55% | 11.88% | 10.68% | 11.18% | 16.27% | 15.35% | 15.51% | 13.84% | 13.7% | 12.63% | 12.51% | 11.39% | 11.75% | 11.56% | 10.47% | 10.73% | 2.07% | 7.19% | 8.72% | 9.62% | 5.9% | 8.39% | 8.54% | 5.67% | 6.86% | 8.19% | 6.93% | 11.4% | 11.82% | 9.97% |
| Net Income Growth % | 11.37% | 1.27% | 21.38% | 3.71% | -21.84% | 12.38% | 2.27% | 5.34% | 4.63% | 10.5% | 1.09% | 9.98% | -2.09% | 6.43% | 12.39% | -3.02% | 412.3% | -71.78% | -21.17% | -6.15% | 85.66% | -27.52% | 1.09% | 61.02% | -52.14% | 3.25% | 80.07% | -30.88% | 2.97% | 30.12% | -3.56% |
| EPS (Diluted) | 5.28 | 5.05 | 5.24 | 4.41 | 4.26 | 5.47 | 4.87 | 4.77 | 4.54 | 4.35 | 3.95 | 3.92 | 3.58 | 3.66 | 3.45 | 3.09 | 3.27 | 0.67 | 2.40 | 3.05 | 3.27 | 1.82 | 2.66 | 2.63 | 1.76 | 3.68 | 3.56 | 1.97 | 2.85 | 2.74 | 2.06 |
| EPS Growth % | 6.56% | -3.63% | 18.82% | 3.52% | -22.12% | 12.32% | 2.1% | 5.07% | 4.37% | 10.13% | 0.77% | 9.5% | -2.19% | 6.09% | 11.65% | -5.5% | 388.06% | -72.08% | -21.31% | -6.73% | 79.67% | -31.58% | 1.14% | 49.43% | -52.17% | 3.37% | 80.71% | -30.88% | 4.01% | 33.01% | -4.19% |
| EPS (Basic) | - | 5.15 | 5.35 | 4.42 | 4.27 | 5.48 | 4.89 | 4.79 | 4.56 | 4.37 | 3.97 | 3.94 | 3.59 | 3.69 | 3.48 | 3.11 | 3.28 | 0.68 | 2.40 | 3.06 | 3.29 | 1.83 | 2.66 | 2.64 | 1.76 | 3.68 | 3.57 | 1.98 | 2.87 | 2.76 | 2.07 |
| Diluted Shares Outstanding | 123.78M | 121.97M | 116.23M | 113.8M | 113.42M | 113.19M | 112.94M | 112.76M | 112.55M | 112.37M | 112.05M | 111.55M | 111.18M | 110.81M | 110.53M | 109.86M | 107.14M | 101.26M | 100.97M | 100.83M | 100.01M | 96.85M | 91.43M | 91.41M | 84.96M | 84.83M | 84.94M | 85.01M | 85.35M | 86.09M | 88.01M |
Regulatory and operational sensitivity to extreme heat events
As reported in recent financial statements, PNW achieved an 11.4% revenue growth in 2026Q1, reflecting the structural tailwinds of rapid industrial expansion in the Phoenix metropolitan area, which necessitates ongoing grid infrastructure investment to support the increasing demand from semiconductor manufacturing and data center facilities across the region.
The revenue trajectory appears increasingly tied to large-scale industrial load growth rather than traditional residential volumetric trends. Investors should monitor whether this capital-intensive expansion translates into sustainable earnings growth or if regulatory lag continues to compress the realized return on these significant infrastructure investments.
According to the company's quarterly filings, operating margins fluctuated significantly from 5.5% in 2025Q1 to 34.9% in 2026Q1, highlighting the inherent volatility in a regulatory environment where earnings are heavily influenced by seasonal cooling demand and the timing of rate case outcomes within the Arizona jurisdiction.
The wide variance in operating margins suggests that PNW remains highly sensitive to weather-normalized demand and the specific recovery mechanisms authorized by the Arizona Corporation Commission. This volatility warrants further investigation into whether the current regulatory compact provides sufficient stability to support consistent earnings growth during periods of extreme heat.
Based on the provided income statement data, the company's operating income exhibits extreme seasonality, with 2025Q3 operating income reaching $649.2M compared to $57.2M in 2025Q1, illustrating the impact of peak-season fuel and purchased power costs on the utility's ability to maintain consistent margins throughout the fiscal year.
The reliance on market power purchases during peak cooling months suggests that fuel cost recovery mechanisms may not fully insulate the company from short-term margin compression. Analysts should evaluate whether the current regulatory framework allows for timely recovery of these variable costs or if they create persistent working capital strain.
As indicated by the reported figures, EPS volatility remains a core feature of PNW's financial profile, with quarterly earnings swinging from a loss of $0.04 in 2025Q1 to a peak of $3.39 in 2025Q3, reflecting the lack of full revenue decoupling in the company's primary regulatory jurisdiction.
The reported EPS appears heavily influenced by seasonal volumetric fluctuations, which may obscure the underlying regulated earnings power of the utility. Investors should look past these quarterly swings to determine if the core rate base growth is effectively driving long-term value creation despite the absence of stabilizing decoupling mechanisms.
Financial disclosures suggest that PNW is in a sustained period of high capital expenditure, with depreciation and amortization expenses rising to $239.9M in 2026Q1, signaling the ongoing integration of new grid assets into the rate base to accommodate the rapid industrialization of the Phoenix metro area.
The relationship between incremental CAPEX and earnings growth appears to be the primary driver of the company's long-term outlook. It remains to be seen whether the current construction cycle will lead to a step-change in earnings or if it will primarily serve to maintain existing service levels under regulatory pressure.
Based on recent operational data, the massive influx of semiconductor manufacturing facilities in the Phoenix area represents a critical inflection point that may force a shift in the regulatory relationship, potentially prioritizing grid reliability and infrastructure expansion over historical rate-setting friction in the Arizona market.
This industrial shift may provide a structural floor for demand that could fundamentally alter the company's growth trajectory. Whether this leads to a more constructive regulatory environment remains an open question that requires careful monitoring of future rate case settlements and commission decisions.
Analysis of the provided financial data suggests that the company's interest coverage ratio, which dipped as low as 0.93 in 2025Q1, may mask underlying liquidity pressures that could be exacerbated by the need for continued heavy investment in a potentially adversarial regulatory environment for the utility.
The income statement may not fully capture the long-term risks associated with decommissioning costs or the potential for political pressure to compress authorized ROE. Investors should be cautious of the reliance on rate base growth to offset these hidden liabilities, as the regulatory path forward remains inherently uncertain.
Quick answers to the most common questions about buying PNW stock.
For fiscal year 2025, Pinnacle West Capital Corporation (PNW) reported total revenue of $5.34B. This represents a 193.8% increase compared to $1.82B in 1996.
Pinnacle West Capital Corporation (PNW) is profitable, generating $616.5M in net income for the fiscal year ending 2025 with a net profit margin of 11.5%.
Pinnacle West Capital Corporation (PNW) reported an operating income of $1.12B, resulting in an operating profit margin of 20.9%. This margin reflects the operational efficiency of the business before interest and taxes.
Pinnacle West Capital Corporation (PNW) generated $1.36B in gross profit for the year, representing a gross profit margin of 25.4%. This demonstrates the company's core pricing power and production efficiency.