As far as I know ,the latest one is QTUM, the ICO price is about $0.33, and when it was listed on YUNBI.com, the price is more than $5, after a few weeks, the price pump to $20, so this altcoin get more then 50x profit.
Right now QTUM is $6.26 so it has gone down, but it is still amazing that people made so much money already from that ICO. It must feel nice to invest $10 for 30 Qtums and sell for $600 months later. lol