Cramer is a schizophrenic, drooling lunatic who should run for political office, having mastered the self serving flip flop for nearly twenty years. A dart board would provide better guidance, at least you'd have a shot at making the dart go where you want it to.
A 2006 analysis of his picks puts him at 46% correct. That's worse than a coin flip.
You might as well use the 3 Stooges to guide your investment.