The following video is from Thursday's Investor Beat, in which host Rex Moore, and analysts Austin Smith and Eric Bleeker, dissect the hardest-hitting investing stories of the day.

In today's edition, Boeing (NYSE:BA) tries to prop up the Dow, hedge fund manager David Einhorn sues Apple (NASDAQ:AAPL) and compares the company to his stingy grandmother, and three retailers put up some very big January numbers. These stories, plus four of the days biggest movers, and two stocks we're going to be watching closely over the next few days.

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.