As I see the work algorythm: appears a signal about a new coin's listing. Then we check at what exchange they added the coin and where it's already trading. If a coin was already traded on big exchanges and now it's added to smth like Yobit or Cryptopia, a huge growth is unlikely. If a coin was traded on small exchanges and now it's added to a big one, there will be a huge growth, but you'd better check if there already was a growth (often coins grow before listing during inside tradings). Also a good option is when a coin isn't traded anywhere or is traded on a very small exchange and a medium exchange like, say, Cryptopia adds it. Then there may be a significant growth and low liquidity gives us a certain amount of time for purchase. That's what I think.