To begin with, I am a total newbie in stock trading (embryo, in fact), and this is my first post here, so apologies in advance for inappropriateness etc.
I am contemplating over Reverse Scale Strategy (from Five Minute Investing by Braden Glett) for long term trading. It appears to be based on the assumption that, of all stocks on a 52 week high list, there will be enough stocks which will go up in price at least 2.25 times after purchase (which gives 16% profit) or 3.38 times to cancel out all those that would be sold at loss if it fails to increase at least 2.25 times and declines to the previous decision point.
What would be the easiest way to test that assumption? That is: how to find how many stocks that were at 52 week high on say 25/11/2014 have increased at least 2.25 times without declining more than by 33% at any time? Where/how would you look for this data?