Im investing small ammounts of bitcoin into some altcoins that i believe are under the real value, soo i will hold them till end the year atleast and then i will think what i will do if sell or wait a bit more, usually the savings returns good profits and almost without risk.
Holding it till the end of the year is a good thing to do as everyone is expecting higher price in the end of the year so if we sell at that point that it can be really profitable.