Sears stock is up 38% in a month. According to Bob Frick at Kiplinger, it is "apparently buoyed by strong back-to-school sales," with the word "apparently" meaning that he really doesn't have a clue.
He correctly (in my opinion) opines that Sears stock is up because people are betting that this company is tanking. That may or may not be true, as while some parts of the company are sucking wind, others are doing well, and Lampert apparently has very little debt there.
It could be a combination of factors, including a short squeeze, but I've always seen Sears as a dirt play myself. The real estate value could be mind-boggling in even a reasonable market. I do know Lampert's one smart cat, so we'll see where this goes....