The following video is from Wednesday's edition of Investor Beat, in which host Chris Hill and Motley Fool analysts Jason Moser and Matt Argersinger dissect the hardest-hitting investing stories of the day.

Late Tuesday night, announced an update to its Kindle Fire tablet line. The new Kindle Fire HDX tablet is 34% faster and comes with a lower price tag. In today's lead story on Investor Beat, Jason and Matt discuss the new tablet and its low price point and give their opinions on just how worried Apple should be.

Plus, the guys take a look at four stocks making big moves today. Shares of MAKO Surgical skyrocketed on news that Stryker will acquire the company for $1.65 billion in cash. AutoZone shares were bolstered slightly by news that fourth-quarter profits rose 15%. J.C. Penney hits a 13-year low on news from a Goldman Sachs downgrade. And Chinese online media company SINA continues its rise, now up more than 60% YTD.

Finally, Matt and Jason discuss why they'll be following Vail Resorts and Nike in the week ahead.

Chris Hill owns shares of Jason Moser owns shares of, Under Armour, SINA, and Nike. Matthew Argersinger owns shares of and has options on Apple and The Motley Fool recommends, Apple, Goldman Sachs, MAKO Surgical, Nike, SINA, Under Armour, and Vail Resorts and owns shares of, Apple, Nike, SINA, and Under Armour. 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.