I hope you're successful in that endeavor. There's nothing wrong in investing in futures like etf's.
There really hasn't been anything like bitcoin futures or hedge funds for them ever before. Since bitcoin isn't recognized as any countries currency, it isn't even an actual futures currency where fiat and gold and the like has a actual value with a collectable resource. I think the fact that almost no one in the world actually owns bitcoins in itself other than a few individuals and the federal government with no insurable commodities that can readily be cashed in and bought itself like dollars or precious metals makes bitcoin itself a 100% risk all the time. Your exchange can disappear or be shut down in an instant by any country or government which normally can't be done to banks and regulated stock exchanges. Bitcoin has no protection in reality.
The feds allegedly own bitcoin they acquired through closing exchanges like the silk road, but no dependable data has been forwarded if the feds indeed have the passwords for all the bitcoins they 'own'. And who uses bitcoin for the most part that is still true? Dark web vendors and porn sites. Online gambling is still rife with people losing money through bitcoin transactions. These aren't growing pains, these are problems that may never be surmountable.
Also, is bigg based fully in the US, or is it owned by a parent company offshore? Like online gambling, the actual owners hide behind affiliates in the US, skirting much of our financial protections. I believe this is the same for almost all bitcoin exchanges.
However, I believe, ethereum, an invented cryptocurrency calling itself some sort of bitcoin that doesn't need direct mining by some slight of hand computer magic isn't saving any energy from bitcoin as the claims of saving energy is only by means of not adding more to the crunch hasn't cut down on bitcoins actual exponential energy uses. Any 'bitcoin' created other than bitcoin, isn't saving any energy. They're piggy backing.
A analogy could be the clothing manufacturer who claims saving resources while actually not cutting down any of their demands for new stock in their original manufacturing process but runs two concurrent systems for extra income streams instead.
Personally, my own opinion is I like to see bitcoin die totally, be eradicated in such a way that people who invested in etf's and the commodity itself would have a chance to get out with a profit instead of bitcoin being shut down entirely at a moments notice.
A huge amount of people are playing the market of bitcoin and only a few at the top are profiting at everyones else expense. Blockchain seems to be a marketing ploy and not a solution to everyday economy use by citizens.
gl.