I would like to say that the risk involve depends on the information gathered from that coin on whether it is a promising one or not.There are many coins that were newly introduced with good market price and value.The value of a coin is not dependent on how long the coin has been in circulation but rather on the level of effect its having on the general market level of cryptocurrency. This means that a coin can be newly launched and its having a high level of positive effect on the growth and development of the cryptomarket as a result of influx of investors investing in the coin and promoting its value to many crypto enthusiasts.