bitcoin does have a big risk but also has a great advantage, only people who are not afraid of the risks that get big profits 
The degree of risk in Bitcoin is base on the amount you put in into Bitcoin Project coin of investment, yes, the bigger the amount the bigger the risk you will face depending on the market movement in the trading at any given time.The benefit on Bitcoin coin earning will be depending on the price movement of the market.You can have a huge amount of profits gain when the price value of Bitcoin goes up 100% of your investment and you were able to trade it during the time when this price is high.