is that most of them are repeat offenders,
once a 黑马, often a 黑马 next time around,
actually this "history repeats itself" thing is probably in general true about all stocks, from CME GOOG ICE to CYTR INSM GNVC... in fact I know of someone trying to use fractal theory to do stock analysis and the results were quite good sometimes,
so,
once a dog, often will still be a dog,
once a heart breaker, often still a heart breaker,
once a black or white horse, often again a black or white horse,
happy chasing,