We always see the price rise for a short period after the listing in the exchanges or after IEO, but soon price be come down,
this may due to two reasons:
The first reason is that the coin or token has no real value.
The second reason is the large sale of those who got his coin free such as airdrop.
Isn't that true?
It's true that the coin or token don't have a real value. And some people acquired this in airdrop or bounty. But the main reason is the project has no future. Or the team only wants to gain money from it.