Cleveland, Ohio-based KeyCorp (KEY) operates as the holding company for KeyBank, which provides various retail and commercial banking products and services. With a market cap of $22.6 billion, KeyCorp operates as one of the largest regional banking companies in the U.S. Companies worth$10 billion or more are generally described as "large-cap stocks." KeyCorp fits right into that category, with its market cap exceeding this threshold, reflecting its substantial size and influence in the regional banking i ...