Take a look at some of Friday's midday movers:
CarMax - The auto retailer surged after posting better-than-expected first-quarter profit and revenue.
Hercules Offshore - The drilling and marine services supplier fell after saying it would forgo a three-year contract in Angola.
Kite Pharma - The biotech soared in its market debut after pricing 7.5 million shares at $17 a piece.
Medtronic - The medical device maker fell after disclosing in a regulatory filing that it was hacked in 2013.
Molson Coors Brewing - The beer maker climbed after Morgan Stanley upgraded the company to equal weight from underweight.
Nucor - The steelmaker said it projected second-quarter earnings at the low end of forecasts.
Owens Corning -The supplier of building materials fell after it lowered its earnings outlook for the year.
Regeneron Pharmaceuticals - The company fell after BMO Capital said in a note that 10 percent of patients using its bestselling drug were were turning to another drug.
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—By CNBC's Rich Fisherman.Questions? Comments? Email us at email@example.com