In this matter it is necessary to understand. If ICO is fraudulent, then it can still grow well in the short term. There may be a good team and a prospective project, but the price on the exchange will be lower than at the ICO. Every project needs to be studied well. If this is well understood, then ICO will bring a good profit. Also much depends on the environment as a whole. For example, in the last 3 months, all the Cryptocurrency has fallen. Even prospective ICOs were unprofitable. Some of the ICO grew, but there were very few.