In this video from Thursday's Investor Beat, host Chris Hill, and Motley Fool analysts Taylor Muckerman and Evan Niu, sift through the noise to shine some investing light on the biggest news stories from the market today.

Shares of Facebook (NASDAQ:FB) were up on the news that the company will be added to the S&P 500 index on Dec. 20th. Lululemon Athletica (NASDAQ:LULU) showed strong third-quarter profits, and was able to grow same-store sales, but the company cut guidance for the fiscal year, which sent the stock tumbling. Athenahealth (NASDAQ:ATHN) announced a "muted" earnings outlook for the next fiscal year, which had shares down. And Southwest Airlines (NYSE:LUV) got a boost after Merryll Lynch upgraded the stock to a buy. In this segment, the guys discuss four stocks making moves on Thursday's market.

Chris Hill has no position in any stocks mentioned. Evan Niu, CFA has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool recommends Athenahealth, Facebook, Lululemon Athletica, and Under Armour. The Motley Fool owns shares of Facebook and Under Armour. 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.