Pinnacle West Capital Corporation (PNW) is a regulated electric utility holding company headquartered in Phoenix, Arizona. Valued at $10.5 billion by market cap, it operates primarily through its subsidiary Arizona Public Service (APS), which generates, transmits, and distributes electricity to about 1.4 million customers.
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 regulated utilities electric industry. The company benefits from Arizona’s strong population and economic growth, which supports rising electricity demand, while also investing in grid modernization and cleaner energy sources.
