somebody knows why CALLS 7.00 MNKD Apr 19 2014 tanked -38% and stock up 76% ? Last Last Trade Net Change % Change 0.89 2014-04-02 13:35:34 EDT -0.55 -38.19% CALLS 7.00 MNKD Apr 11 2014 tanked -44% and stock up 76% ? Last Last Trade Net Change % Change 0.56 2014-04-02 13:42:15 EDT -0.45 -44.55%