Pinnacle West Vs. Avista: Why I'm Upgrading AVA

Utility stocks update: Pinnacle West rerates to 21.9x amid a 2026 rate case risk, while Avista's data center deal boosts growth.

Mar. 15, 2026 at 11:50am

In this article, finance professor Dr. Joseph E. Jones analyzes the investment prospects of two utility companies, Pinnacle West (PNW) and Avista Corporation (AVA). He compares the potential faster growth with greater risk for PNW versus the greater stability but slower growth for AVA. The article discusses how Pinnacle West's rate case risk in 2026 has led to a rerating, while Avista's data center deal has boosted its growth outlook.

Why it matters

This analysis provides valuable insights for investors considering utility stocks, as it highlights the tradeoffs between growth, risk, and stability in the sector. The article helps investors understand the key factors driving the performance and valuation of these two utilities, which can inform their investment decisions.

The details

Dr. Jones previously covered Pinnacle West (PNW) and Avista Corporation (AVA) in June 2025, noting that PNW offered potentially faster growth but with greater risk, while AVA had greater stability but slower growth. In this updated analysis, he discusses how Pinnacle West's upcoming 2026 rate case has led to a rerating of the stock to 21.9x, while Avista's data center deal has boosted its growth outlook.

  • The article was published on 2026-03-15 at 11:50:18.

The players

Dr. Joseph E. Jones

A professor at The University of Southern Mississippi who writes independently about portfolio construction from a dividend growth investment perspective.

Pinnacle West (PNW)

A utility company that has seen its stock rerated to 21.9x amid a 2026 rate case risk.

Avista Corporation (AVA)

A utility company that has seen its growth outlook boosted by a data center deal.

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What they’re saying

“I last covered Pinnacle West (NYSE: PNW ) and Avista Corporation (NYSE: AVA ) in June 2025. At that time, the comparison boiled down to potentially faster growth with greater risk for PNW vs. greater stability but slower growth”

— Dr. Joseph E. Jones, Professor

The takeaway

This analysis highlights the tradeoffs investors face when choosing between utility stocks focused on growth versus stability. Pinnacle West's upcoming rate case risk has led to a rerating, while Avista's data center deal has boosted its growth outlook. Investors must carefully weigh these factors to determine which utility stock best fits their investment objectives and risk tolerance.