I think you can make a 100x returns with a year's time. But what you asked is not impossible. You can make some serious gains if you got the right coin before the pump. I have made money on Strats, ANS and ICN. I got on them after the ICO. Right now, the market has corrected very much. If you try to figure out the bottoms, then you might be able to make 10x  to 50x in 6 months.