Short answer, yes, it's risky. HOWEVER, if you had done it on the day you made this thread, you would have a 69% return right now. I'll go out on a limb here and say that's a tad bit more than you would have made in a typical savings account.
Saving accounts most of the time do not give interest rates you need to invest and even then you may get only something between 1% and 5% so in order to get the same earnings that you could have in the last months you will need to invest for more than a decade, this show to us very clearly which one is the best investment.