Based in Phoenix, Arizona, Pinnacle West Capital Corporation (PNW) is a leading energy holding company. With a market cap of approximately $11.9 billion, it generates electricity from nuclear, natural gas, oil, coal, and solar facilities while overseeing a vast network of transmission lines, distribution systems, substations, and energy storage assets. Over the past 52 weeks, PNW stock gained 11.2$SPX), which rose 11.8% during the same period. This year, however, t ...