Stock-split euphoria fueled Wall Street's gains in 2024 A stock split is an event that allows a publicly traded company to cosmetically alter its share price and outstanding share count by the same factor. The "cosmetic" aspect has to do with these adjustments not impacting a public company's market cap or its underlying operating performance. Splits come in two flavors, with investors gravitating to one far more than the other. The less-popular of the two is a reverse split, which is designed to increase a ...