MMX was dumped because investors perceived MMX to be a risky stock like the subprime financial stocks. Anything risky was dumped even good stocks . Its all about sentiments at the times and herd mentality. Whoever held their nerves and their stock are now reaping the benefits of the rebound. Most specs rebound albeit less then the quality stocks of which MMX is one I think.
( I hold MMX and GBG )