As you know IEO trend is growing but i feel IEO is profitable only for those who invested in token sale but who have purchased altcoin after launched they suffer loss majority of the investors ,as the BTT and some other altcoin examples of IEO.
Initial Exchange offering (IEO) is more profitable if you get the coins in the sale. You can easily make 3-10x of your investment in a couple of hours or in a day or two. Binance IEO average returns are above 3x and the token listed in 2 days after the IEO sale ends. Whereas Huobi IEO is more profitable and gives up to 10x in a couple of hours.
IEOs are only profitable if you buy in the sale otherwise you will lose your money. The tokens are dumped by the private sale investors and IEO buyers.
Try to buy in IEO or stay away from them.