The following video is from Tuesday's Investor Beat, in which host Chris Hill and Motley Fool analysts Joe Magyer and Mike Olsen dissect the hardest-hitting investing stories of the day.

Microsoft has announced a plan to buy back $40 billion worth of shares, and has also said that it will be increasing its dividend by 22%. In our lead story on today's Investor Beat, Mike and Joe look at Microsoft's share buyback track record, discuss some advice they have for the next CEO after Steve Ballmer, and talk about whether the stock is a buy today.

Also, the guys discuss four stocks making moves on the market today. Aeropostale shares are up big on news that a private equity firm has taken an 8% stake in the company. Pandora has announced a secondary offering of 10 million shares, as the company looks to raise $235 million. JPMorgan is facing an investigation over its London Whale trading losses in 2012. And Safeway is hitting a five-year high after one investor buys a significant amount of common stock.

Finally, Joe and Mike discuss why they'll be watching shares of Amazon and eBay closely this week.