On some coins, the price flies up several times, then falls to the price of the sale of ICO and in a few months exceeds the surge after the release of coins to the market.
I would be very honest with you about my opinion here. ICOs nowadays are not as promising as they used to in past when the digital market was still too young and too weak and the number of available options was also a limited one but now the market is full of variations and besides, there is a big threat of being scammed too. Moreover, these can never bring real profits anyway.