Of course investing in bitcoin got a risk, and we only can predict the price we cant know for sure how will be bitcoin in the future, and the price can go down like last month, bitcoin price can down if there is a big incident, and judging from the chart and the growth bitcoin can be very profitable for the future, just buy and hold few coin see for yourself whether you satisfied with then growth or not, and everytime is the right time to buy because the demand of this coin keep on increasing
Actually, all kind of investment is a risky because there is a chance that you could lose your money. Furthermore, bitcoin is also a risky investment and its because if the unstable price and bitcoin doesn't have exact and the price of bitcoin is always fluctuate so that you can say it is a risky investment.