only if it is solid and famous exchange like binance. on binance every ieo make for it's participants profits. few times i read it is x3-5 in the start of trading. only those who have money can participate.
There is no guarantee that you will get returns all the time with IEOs in Binance. It is true that exchanges such as Binance and Huobi screen the IEOs very carefully before listing them. But then, market dynamics can also have a big impact on the future. So when you go for the investment, you need to craefully analyze all the factors about that particular project.
Since Binance launched IEO, I have never seen them fail. All cashew projects are successful and profitable at least 2-3 times the IEO price. It is clear that Binance is the best exchange and has the best IEOs, which has attracted a lot of investors to participate in their exchange.
I have analyzed almost all the IEOs that got listed in Binance during the last 12 months or so. Some of them have given spectacular gains. One example is that of the BitTorent Token (BTT). The IEO price was $0.00012, and now it is trading at $0.00027. However, there was a time when it went up by 1500%. Another one is the Matic Network. It's IEO price was $$0.00263, and now it's trading at $0.0186.
But then what about projects such as Perlin? IEO price was $ 0.077, and now it's being traded at $0.013. And what about WINk? Got listed at $ 0.00012, and is trading at $0.00007 now.