PERFORMANCE

Regis Corp., Edina, said its quarterly report for the quarter ended Sept. 30 is being amended. The company determined that $24 million of noncash foreign currency gain related to the sale of its investment in Provalliance during those three months was understated by $9.9 million.

DEBT AND EQUITIES

CenterPoint Energy Inc., Houston, declared a regular quarterly cash dividend of 20.75 cents per common share, payable March 8 to shareholders of record on Feb. 15.

Donaldson Co. Inc., Bloomington, declared a regular cash dividend of 10 cents per share, an increase from 9 cents, payable March 8 to shareholders of record on Feb. 15. As of Dec. 31, there were 146.6 million shares outstanding.