Stocks in focus Wednesday: Staples, Costco By: MarketWatch March 01, 2011 at 19:55 PM EST Among the companies whose shares are expected to see active trade in Wednesday’s session are Staples Inc., Costco Wholesale Corp. and BJ’s Wholesale Club Inc. Read More >> Related Stocks: Costco Wholesale Footlocker Inc MetLife Paymentus Holdings Inc Cl A Staples