These management teams are focused on improving their businesses more than their stock prices.Investors' enthusiasm for stock splits is a recent phenomenon and surprising. It's surprising because stocks represent ownership positions in real-world businesses. Dividing ownership into more pieces -- which is all a stock split does -- won't improve a business in any material way. Therefore, it's not one of the primary things that investors should focus on.This disclaimer out of the way, I can't deny that invest ...