Other than the site you are pumping for, please tell us how exactly we are to find the stock every week that will move 20%. YOU are the one who posted that claim.
As far as trading this stock, there are many here who have been successful trading some stock while holding a core position. It is very dangerous to be completely out of a stock that is news dependent. Had I sold my STEM position yesterday, I would not have profited from the 43% move today.
Again, tell us exactly how we are supposed to identify every week a new stock that will move 20% as your claim in a previous post was. I'm sure everyone else is waiting with bated breath also.