The reason is low volume and utra low mcap , most of such coins are just scams and pumped by early investors in hope of making quick bucks. A lot of these coins are illiquid like even if the gains are 1000% you can't sell it in total due to very low volume.
You have to always be one very cautious with new projects as they are very high risk and reward projects and chances of scams are higher.
People who have big money can move the price and make people attract to buy and sell to make the price up to and down too. That can trigger have ap ump for the coins, so we need to be careful from that. As long as we can quit the market and already make a profit, we don't have to follow the price moves because we can get a trap at a high price if we still try to buy and sell the coin. There will be many others like that, and if we can not analyze better, I think we don't have to try to trade that coin.