In the spirit of better investing and in celebration of the first annual Worldwide Invest Better Day coming up on Sept. 25, Motley Fool analysts will be answering user- and reader-submitted questions leading up to the big event. "Ask a Fool" anything, and we'll do our best to help you invest better.

In the following video, analyst Isaac Pino explains what it means when a company announces a "stock split," as well as the implications for investors when their shares are split. He also discusses why some companies choose to never announce stock splits, one example being Berkshire Hathaway, whose "A" stock currently trades at upwards of $100,000 a share as a result.

Click the big green button to join the thousands of people celebrating Worldwide Invest Better Day on Sept. 25!

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.