Yes, my friend, you are right because projects that get listed on the market via IEO typically see high rates of return. One reason for this may be because when a prestigious exchange launches an IEO, it can be thought of as the exchange giving that project a stamp of approval. These exchanges hosting IEOs are industry leaders with their reputation at risk, so they hold the projects they list to high standards and rigorously vet the projects before deciding whether or not they will be the counterparty in the token sale and list the coin afterward.
I recently invested in Moozicore and they give more returns in a few years.(
https://tokensale.moozicore.com/)
IEO is now more popular and in demand and better than ICO because it is managed by an exchanger. With manage from an exchanger, faster token listings on the market and quickly traded. Investors can immediately profit or accumulate their investment