In Friday's edition of Investor Beat, host Alison Southwick and Motley Fool analysts Lyons George and Ron Gross dissect the hardest-hitting investing stories of the day.

Longtime Microsoft CEO Steve Ballmer announced today that he is retiring as soon as a replacement is found. In our lead story on Investor Beat, Ron and Lyons discuss what's next for the company.

Our analysts also take a look at four stocks that made big moves Friday. Google makes its largest venture deal ever. Gap takes a hit despite beating analyst expectations. Pandora is paying more for music. And Aeropostale isn't cool with teens or the market.

Finally, Ron and Lyons explain why they're keeping a close watch on shares of Tiffany and Control4.

Alison Southwick owns shares of Apple. Lyons George has no position in any stocks mentioned. Ron Gross owns shares of Apple and Microsoft. The Motley Fool recommends Apple, Google, and Pandora Media and owns shares of Apple, Google, and Microsoft. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.