Cirrus Logic, Inc. (Nasdaq: CRUS) shares ran up 10.5 percent Thursday to $19.80. Volume was 2.5 million shares, compared with daily averages around 3.4 million, on quarterly revenues of $95.6 million, up 47% on the same quarter a year ago.

Citigroup Inc. (NYSE: C) traded in 55.5 million shares Thursday, building toward a daily average of 548 million. Share prices inched up 0.9 percent to $4.86

Quantum Corporation (Nasdaq: QTM) shares fell 19.4 percent to $2.90 Thursday, on volume of 14.3 million shares, squashing its daily average of 4.3 million, after the company reported fiscal Q3 revenue and EPS below estimates and a sharply underwhelming forecast as well.