Actually, some of us think a rally is possible after a chapter 11 filing, especially as assets and liabilities are totaled... But I believe a better outcome would be no filing, and even if there is dilution of new shares, it would be better, because a company this large would certainly rally back into dollars if an out of court restructuring is announced.
So, you places your bet, you takes your chances, but I think from this level, chances are good investors will at least be able to make some profit.