I think theres no more ico project and ieo projects are now invading the exchanges, but for me ieo and ico is almost the same, doenst mean if a project conducts ieo it will be successful, ive seen projects that made thier IEO but failed.
of course investment will not and never success 100%, it is impossible in this volatile market.
but, some of them can be success, There are many success IEO at this time
Just choosing the good IEO which is usually held by big exchange. that's one way to avoid bad IEO