being volatile is not the problem and it can not be considered a "risk" in my opinion. take a look at bitcoin ,it has been volatile for all its life but it still is a very good currency and/or investment. the reason is because volatility is the product of having a small market on exchanges.

the problem is when volatility is not because of smallness of the market but it is because of manipulation. for example no matter how much money goes into altcoins they will remain highly risky because their volatility is product of pure manipulation which people call pump and dump.