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?
the both reasons is true. but the greatest reason who really make price down so fast that number two is many bounty hunters sell their coins after launched on the market, bounty hunters sell their coins as quickly as possible because ussually after coins launched the price of coins very high and make seller get big profit if they are selling coins as quickly as possible than hold for longer