By the end of the year, RadioShack expects to have over 100 concept and brand statement stores in operation. It also intends to re-merchandise inventory in its existing 4,300 stores which it hopes will show improvement in the fourth quarter. RadioShack is up against the clock. Additional content: Big Lots to Shut Wholesale Biz Big Lots Inc. ( BIG - Free Report ) announced the decision to shutter its wholesale operations, including Big Lots Wholesale, Consolidated International and Wisconsin Toy wholesale by fiscal 2013 end. During the shutdown, inventories are expected to liquidate and associates will be absorbed by the retail segment in the next 90 days. Following the announcement, pre-tax charges for the third quarter are estimated to range between $5 and $8 million. Also, post the wind down, the wholesale business financials will be treated as discontinued operations for fiscal 2013.