Pinnacle West Updates Rate Case Positions: $691.6M Revenue Request, 14.69% Bill Impact
PNW is trading near its 52-week low of $85.323 (14% above the low).
Summary
Pinnacle West's September investor materials update the pending APS rate case with a $691.6M revenue request and 14.69% bill impact, while confirming $685M in equity forwards priced and the new $500M ATM program underway.
Key Events · Earnings and Guidance · PNW
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Rate Case Revenue Request Updated
APS Rejoinder Testimony seeks a $691.61M total revenue requirement increase with a 14.69% customer bill impact, versus ACC Staff's $506.46M and 10.22%.
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Rate Case Decision Timeline
Initial briefs filed August 27, 2026; reply briefs due September 11, 2026; final ACC decision estimated December 2026.
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Equity Financing Execution
$685M priced under equity forwards through July 2026; $650M PNW equity priced with $0 settled; $900M ATM program fully utilized; new $500M ATM program established.
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2026 Weather Impact
2026 total weather impact on gross margin disclosed at $45 million pretax.
Analysis · PNW · Energy & Transportation
The September investor deck reveals updated APS rate case testimony showing a $691.6 million revenue requirement increase and 14.69% customer bill impact — materially higher than the ACC Staff's $506.5 million position. The final decision is expected December 2026, making this a key regulatory catalyst for earnings. The deck also confirms $685 million in equity forwards priced through July 2026 and full utilization of the $900 million ATM program, with the new $500 million ATM program now active.
How filings like this one have moved
In the 30 days to Sep 10, 2026, 29.9% of the 1988 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.12%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, PNW was trading at $97.52 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $11.8B. The 52-week trading range was $85.32 to $111.16. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.