You cant predict it. Imo you take whatever you want to spend on a coin thats about to list and spend 50% instantly. Then watch the charts and decide when to throw in the rest. And then hold on for dear life. Btw im buying into covesting on etherdelta right now. Not waiting for the Hitbtc listing. Bought a SHIT LOAD at 2.40 roughly, thats a 37 million cap for a coin with low supply, will be held tightly, and has a beta platform launching in q1. Eth is transfering then buying even more. Im really, really big on this guys. Anything under $5 imo is a great buy.