Participating in ieo is better than buying on the exchange. Once it is listed, those who already own the token will try as much as possible to sell off, and the price will continue downward until it stabilise.
However, for those who do not have time to buy in IEO, it is also very good to be able to buy on the exchange, because there are also new tokens from IEO once listed on the exchange, the price is not the same as the price in IEO, so those who buy directly on the exchange will be more profitable.
it depends on the project itself. if the project is listed in Binance IEO, it is good. bcz most of Binance IEO is higher price than in IEO
I would suggest to only buy IEO in Binance, or the high quality exchange. Do NOT invest IEO in low quality Exchange
bcz it is very risky for your investment. and of course lower your profit probability