CNBC's Stock Pops & Drops From October 20: Pandora, Hertz, CSX And NewLink Genetics

Guy Adami spoke on

about a 7.12 percent increase in price in

. He explained that the stock traded higher on the news of the signing of a deal with Genentech and he speculated that a huge short interest might also had something to do with a big move higher. Adami thinks that traders can stay long this name. Karen Finerman said that

traded 6 percent higher after the announcement that Jana Partners bought a stake in the company. Finerman likes the stock at its current price level.

lost 1.51 percent on the news that

might lower the price of Beats Music subscription and that Spotify is offering discounts to families. Dan Nathan said that this means lower margins for

which operates in a highly competitive environment. Tim Seymour is not concerned with a 1.03 percent decrease in price in

after the collapse of merger talks with

. He would not sell the stock on this news.