ico selling never pump after ico end
ussualy after ico end and listed to exchanger , price can average is ico selling price
after over one month listing to exchanger can up over ico price
But this thing can't be always happen in all ICO, you can see LISK when they launch in market and added in exchange the price go high if i'm not wrong 0.0015/LISK but rapidly down and down again, but we should be carefull and all ICO token dump and up is can be happen, and WINGS can be dump and pump too, WINGS have big bounty i think this is one factor can make WINGS price down for a while
Other projects had even bigger bonuses that wings.
Any coin goes up and down it's a market, buy low, sell high.