I think you can get tokens during ICO periods. These tokens usually rise after ICO.It is necessary to investigate projects well and make smart choices
Some token rise the price and some dont. Sometimes bounty hunters dump their token to get small money and thats make the price plunge quickly. Better find this kind token because price below token more than 50%
But if we choose for a project which has a high demand in the market and the product will be used by majority of the people and everyone will know that the price will increase that in that the price do not drop much. The bounty hunters sell their coins but the investors buy that and keep them for longer time then the price start to increase.