The following video is from Thursday's edition of Investor Beat in which host Chris Hill and Motley Fool analysts Matt Koppenheffer and David Hanson dissect the hardest-hitting investing stories of the day.

In this segment, Matt and David tell investors why they'll be keeping an eye on shares of LifeLock (NYSE:LOCK) and Greenlight Capital (NASDAQ:GLRE) this week.

Chris Hill has no position in any stocks mentioned. David Hanson has no position in any stocks mentioned. Matt Koppenheffer has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not 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.