Sears

(SHLD)

added $500 million to its buyback plan.

The Hoffman Estates, Ill., retailer said it had $118 million worth of repurchase authority available under a previous $1.5 billion plan. Since starting that program in September 2005, Sears Holdings has bought back 11 million shares at an average cost of $126.14.

Sears, which had 154 million shares out at Aug. 29, closed Tuesday at $155.84.