A Home Depot ( HD ) is roughly a mile away from the mall, a Lowe's ( LOW ) five miles or so, but neither of those places sell jeans and t-shirts. In effect, Sears will have ceded an entire market to a competitor, not unlike what happened in the wake of Circuit City going bust in 2008, benefiting Best Buy ( BBY ). "J.C. Penney is [already] stealing market share from Sears -- store closures are proving to be a positive overall," wrote B. Riley analyst Jeffrey Van Sinderen in a recent note. "We know that there will be market share up for grabs with some of the disruption happening with some of the leading appliance retailers in the marketplace," said J.C. Penney CEO Marvin Ellison Ellison likely was referring to the disruption being caused by Sears' aggressive store-closure plan and possible overall demise. Sears has closed about 80 stores this year, according to calculations done by TheStreet, of which about 58 have been Kmart stores and the rest Sears stores.