You could easily earn thru bitcoin investments if you could luckily found an investing websites which will give you big earnings thru your investment to them but this is very difficult because most of these sites are HYIP or a Ponzi schem which is a scam or fraud so be cautious. Then if you have a huge capital to invest then you could easily gain also thru hoarding and trading bitcoin in which using a big amount to invest is an advantage to earn big profit quickly.