You are talking about shit coins that gets pumped and dumped. Only coins that are considered scam coins rise more than 100% within few hours before it gets dumped and dies. The creator of the coins hold the majority of the coins and can easily manipulate the market. This is what they actually keep on doing. Once they hold of good buying volume amount, the dump their coins causing the price to crash and die eventually.
Yeah, it becomes more profitable if you can take advantage of this pumping, but the risk associated is very high thus making investment on it not worthy at all.