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?
During this time I experienced the influence of sales price changes from Bounty Hunter token sales. However, if they have good marketing and a good development a sharp decline will not happen. The selling value of definite coins after the decline will rise.
Many projects even now restrict bounty hunters from selling tokens by giving tokens after the project is completed gradually. This kind of way is often done even after tokens are listed on the exchange, cannot be sold directly and they lock them so the price can continue to stabilize.