Bakkt only? No! 10 exchanges has been regulated and get access to trade full-regulated BTC-based derivatives (futures, but day ahead swap at LedgerX, forwards at TeraExchange).
Kraken Futures (ex. CryptoFacilities) represent other products - ETH, LTC, XRP and BCH futures contracts.
Most of all exchange regulated under US law, two licensed at UK (CryptoFacilities and LDX - London Derivative Exchange) and one at UAE (Dubai-based BTSE exchange).
24h Total volume: ~
190M USD, Open interes: ~
110M USD.
Data availability is a pain questions at now - only CryptoFacilities and BTSE have a public API, LedgerX has limited data reports (but BTSE dont published open interes metrics). Now we are discussed with other exchanges to access it's data API.
