One of the hottest stocks in today's market is actually devoted to cooling. Vertiv Holdings (NYSE: VRT ) is mainly known for the necessary equipment that it designs and manufactures in a world whereI’m a long-term investor focused on U.S. and European equities, with a dual emphasis on undervalued growth stocks and high-quality dividend growers. Through years of experience, I’ve learned that sustained profitability—evident in strong margins, stable and expanding free cash flow, and high returns on invested c ...