Here's what CNBC's "Fast Money" traders had to say about some of the market's biggest movers on their "Pops and Drops" segment Tuesday.

Pops

Student Loan Corp. ( STU) popped 14%. Karen Finerman said it was because the Senate is trying to help student lenders.

Smithfield Foods ( SFD) added 8%. Jeff Macke said this stock has been beaten like a hog and is finally getting some back. He said to stay away.

Compuware ( CPWR) jumped 11%. Pete Najarian said that the company raised estimates beyond expectations.

Charles Schwab ( SCHW - Get Report) was up 9%. Guy Adami said he saw good action from the company.

Walter Industries ( WLT) climbed 3%. Najarian said the coal stocks are moving higher.

Zale ( ZLC) went up 10%. Finerman said the move was "perplexing."

Drops

Forest Labs ( FRX) dropped 9%. Adami said the quarter wasn't a disaster but 2009 guidance was. It'll become value play at some point, but not yet, he said.

Manitowoc ( MTW) was down 9%. Najarian said investors don't like that it bought a fryer company. They would like to see the company settle on its crane business, he said.

Las Vegas Sands ( LVS) lost 7%. Adami said casino names are hurting right now.

Capital One ( COF) went down 2%. Finerman said her hedge fund is short the name. It's reporting earnings on Thursday, she said.

Northrop Grumman ( NOC) gave up 7%. Macke said Lockheed Martin ( LMT) is more interesting.