Cliffs Natural Resources Inc. (NYSE: CLF) shares were up 8.3% to $100.59, on volume of 3.9 million shares, already racing ahead of an average of 3.2 million, a day after the mining firm hiked its 2011 North American iron-ore sales outlook.
Nvidia Corporation (Nasdaq: NVDA) dealt in 21.6 million shares Thursday, approaching a daily average of 24.6 million. Share prices jumped 2.9% to $24.06.
NetApp Inc. (Nasdaq: NTAP) shares were off 9.9% to $52.74. Share volumes were 10.8 million shares, already twice its daily average, a day after the data-storage company offered a fourth-quarter forecast below expectations.
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