Wal-Mart

(WMT) - Get Report

, which last week turned in disappointing sales results for August, said its September sales performance is back on track.

Federated Department Stores

(FD)

and

J.C. Penney

(JCP) - Get Report

also affirmed their September sales targets.

Wal-Mart said it expects same-store sales -- sales at stores open at least a year -- to rise 4% to 6%, due to increased sales in electronics and household chemicals, among other products.

The company's August same-store sales were up 3.8% from the previous month, below estimates of 4% to 6% growth. Wal-Mart's shares were up 1% at $53.39 in recent trade.

In the five weeks ended Oct. 4, the company expects same-store sales at its Sam's Club wholesale warehouse unit to show a stronger increase than the 1.1% rise posted in August.

Separately, Federated said it expects September sales to remain on track, up 3% to 5%. Like Wal-Mart, the company had a disappointing August, with sales down 5.8%.

Penney, meanwhile, affirmed that its September sales will be flat to slightly higher. The company posted a 2.9% increase in August sales.