A stock share is always worth the same as every other stock share. The value of the shares fluxuates with the market. So those shares that where purchased before K-mart hit bankrupcy are worth the same as the shares now. I'd recommend holding them for several more years until K-mart comes out of chapter 11 bankrupcy protection. Then you may be able to get a decent price on them, however I doubt you will get what you paid for them.