peer to peer instruments are along the lines of airline miles. The airline is my counterparts risk. If you are saying Bitcoin is a peer to peer instrument, who is the counterparty ?
Why do you say that peer-to-peer instruments are along the lines of airline miles? Are you suggesting that "counterparty" is some form of central server? Google defines peer-to-peer (emphasis mine) as: Bitcoin is transferred directly from one wallet to another. Example: I give you $20 to wash my car; the deal is just between the two of us. In the same way, I can give you bitcoins to wash my car, and no third party is necessary. The only difference is that the currency goes over the wire--from my cryptowallet to yours--instead of hand-to-hand. I don't see any counterparty, unless I misunderstand your question.
Just found this: "Another bitcoin ETF, proposed by SolidX Management, was also rejected in March. The third one proposed by Grayscale’s Bitcoin Investment Trust (GBTC) is being reviewed and a decision is due by Sep 22." That would be funny if they were the first approved and not the Winklevii...
I can recommend one european broker, but i suppose it can be considered as advert, so write me in private, it provides btc and eth with long/short up to 3x leverage, but i really don't recommend to use leverage in this crazy stuff
Coinigy provides data from multiple exchanges. I believe most major exchanges provide their own data( Gdax)