The following video is from Tuesday's episode of Investor Beat, in which host Chris Hill and Motley Fool analysts Matt Argersinger and Bryan Hinmon dissect the hardest-hitting investing stories of the day.

While the Dow and the S&P 500 both pulled back today, it was the Nasdaq's sell-off that really caught some attention. While the tech sector had been enjoying a good run in 2013, the sector was really hit hard today as the debt ceiling battle coming up on October 17 draws nearer. In today's lead story on Investor Beat, Matt and Bryan talk about whether investors were right to take some money off the table and who really needs a home run now that earnings season has officially kicked off.

Also up for discussion are four stocks making big moves today. Facebook pulled back after receiving a downgrade from Raymond James. Shares of Jamba Juice were hit hard after the company cut guidance for the full year, with its same-store sales forecast lowered by 75%. J.C. Penney's stock is up after the company said sales improved in September. And Sina took a hit, showing that the Chinese online media company was not immune to the big sell-off in the Nasdaq.

Finally, Bryan and Matt tell investors why they'll be keeping an eye on shares of Oracle and The Washington Post Company as earnings season begins.

Bryan Hinmon, CFA owns shares of Oracle and Facebook. Chris Hill owns shares of Starbucks. Matthew Argersinger owns shares of Starbucks. The Motley Fool recommends and owns shares of Facebook, Oracle, Sina, Starbucks, and Tesla Motors. 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.