And those chances are very low, just look at the market and see how most of the coins are scams and how only 5% of the traders get any profits, so do not invest in those coins and only invest in bitcoin and maybe in ethereum as well.
The majority of the ICO's and IEO's are scams or pump and dump schemes. I've never really seen the appeal of them to be honest. Usually all I ever see from them is coin will release, hit the market, then the price will tank almost immediately and it never be worth anything. They're just too risky of an investment for me, but if they work for you, then stick with whatever works I suppose. However, I would recommend new people stay away from ICO's and IEO's