Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTNeha PanjwaniTue, June 23, 2026 at 4:18 PM GMT+2 2 min readBull and bear on a tablet_Image by Ice stocker via ShutterstockPinnacle West Capital Corporation (PNW), headquartered in Phoenix, Arizona, provides retail and wholesale electric services. Valued at $12.4 billion by market cap, the company provides retail and wholesale electric service to most of the State of Arizona. PNW is also involved in real estate development activities in the western U.S.Companies worth $10 billion or more are generally described as "large-cap stocks," and PNW perfectly fits that description, with its market cap exceeding this mark, underscoring its size, influence, and dominance within the utilities - regulated electric industry. PNW invests heavily in clean energy. Its half of Arizona Public Service's electricity comes from clean energy, positioning PNW favorably in the market and aligning with regulatory requirements and consumer preferences.More News from BarchartThe Big Tech Investment Cycle is Shifting, and Chevron Just Wrote the Blueprint for the AI Power Trade.