It's not all about being a top exchange that makes an IEO successful or not, frequency is an important factor... Top exchanges only launch one IEO at a time, driving there whole trading community towards that raise. Other exchanges launch 5 IEOs at a time, like LAToken, making it hard to reach the cap for each simultaneously   Check out the calendar on https://ieoalarm.com, exmarkets, latoken...all of simultaneously running IEOs