Well bitcoin itself is an investment .u have so many risks when it comes to investment in startups to give them loans .well u can invest them by storing them in ur wallet and wait till the price of bitcoins rise up .kudoos 
I think when you buy a bitcoin was already included in investing money, because you will still earn a profit when the only store in the course bitcoin walletbut maybe you have to wait a long time, because no one knows about when prices will rise