Sale of altcoins in the initial period of coins appearance on the market is caused by many reasons.The most common is the disbelief in the future of this coin, and as a consequence of the sale in the initial period.as a rule, it is at the beginning of the appearance of coins on it still holds the normal price.A month later the price drops and then the loss is much greater.I try to hold the coins until the moment when it is clear whether the coin has a future.