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 Friday.
Sprint ( S) popped 20% this week. Pete Najarian said that the WiMax buildout will be a big boon but it might not save Sprint. Alcoa ( AA) jumped 8%. Guy Adami said he's liked the company for a while. With a buyback and a new CEO, he still likes it. H&R Block ( HRB) climbed 5%. Najarian said the company was getting some relief from credit problems. Advanced Micro Devices ( AMD) was up 13%. Adami said oil's not a problem for this company, but he's still not a fan. True Religion ( TRLG) soared 16%. Jeff Macke said the stock is a sell here.
Clear Channel ( CCU) dropped 4%. Macke said it's a quagmire. Avoid it at all costs, he said. Sotheby's ( BID) fell 13%. Karen Finerman said the company's expenses were "out of line." The Knot ( KNOT) slipped 15%. Macke said to short the stock. Tesoro ( TSO) tumbled 14%. Finerman said oil prices are high.