I have taken part of some ICOs and everytime their token price goes down after the ICO.. why is that so?
Because the pre-sale investors are dumping their tokens to the market and they are trying to get fast buck. Remember you should aware about how much bonus that has offered by the ico team to the early investors before they are doing their ICO. when the price has been touching the ico price and they will dump it because they have acquired a huge bonus.
In addition, you also need to find out how many tokens are allocated to the team, advisors, and marketing, because often this amount is measured in large amounts, tens of millions of dollars. After entering the exchange, this volume of tokens goes to the market and begins to be sold. The price of the token falls to a low level, because these tokens were not bought, but were received for providing services or for work, and this leads to price dumping.