Pinnacle West Capital (PNW) is back in focus after its August special call, which followed second quarter results, confirmed 2026 earnings guidance and a filed at-the-market equity offering of up to $500 million.

Pinnacle West Capital’s share price has eased over the past month, with a 30 day share price return of down 7.6%, even though the year to date share price return is 13.9% and the 5 year total shareholder return is 55.8%. This suggests earlier momentum remains in place while investors reassess the latest earnings, guidance confirmation and the planned at the market equity raise.

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The recent pullback in Pinnacle West Capital after confirmed 2026 guidance and the planned equity raise could signal a rethink of sentiment rather than business fundamentals. The next step is to see what the current valuation implies.

Most Popular Narrative: 4.4% Undervalued

The most followed narrative values Pinnacle West Capital at $105.07 per share compared with the last close at $100.40. This frames a modest undervaluation based on long term assumptions rather than short term trading moves.

Pinnacle West's accelerated infrastructure investments in transmission, distribution, and generation (including the new regional natural gas pipeline and major grid projects) are expected to significantly expand the regulated rate base, supporting higher allowed returns and future revenue growth.

Curious what sits under that fair value gap. The narrative leans heavily on steady expansion, improving margins and a valuation multiple that edges ahead of today. The main focus is how these pieces combine across several years of earnings.

Result: Fair Value of $105.07 (UNDERVALUED)

However, the Pinnacle West Capital story could shift quickly if regulatory lag tightens margins or if heavy capital spending leads to overbuilt and underutilized assets.

Another Angle On Pinnacle West Capital’s Valuation

The fair value narrative pegs Pinnacle West Capital at $105.07 per share, which points to a modest 4.4% undervaluation versus the last close at $100.40. Our DCF model paints a different picture. On that approach, Pinnacle West Capital screens as overvalued, with the share price above an estimated future cash flow value of $89.78. For an investor comparing these two signals, the key question is which set of assumptions feels more realistic for the next stage of the story.

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Pinnacle West Capital for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 49 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

With mixed signals around Pinnacle West Capital in this article, it helps to move quickly and weigh both sides for yourself using the 4 key rewards and 3 important warning signs

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.