Simple answer: CME one of the most reputed and US regulated exchange has BTC Futures cash settled and Options on BTC but you have to trade through a FCM futures there is still a risk that a Futures FCM can go belly up like MF Global so IB with a combined account who claim that your cash is covered via SIPC even if it is used for futures or options tradingI've been looking into various exchanges / brokers where I can trade crypto futures and options. My main concern is their possibility of the failure (i.e, bankruptcy). Many exchanges allow customers to trade futures up to 100x leverage. Such huge leverage poses serious threat to the winning traders. In fact, lots of exchanges clearly indicate that the bankruptcy loss would be socialized among the winning traders.
What exchanges / brokers are the safest to trade crypto? IB (CME future) is much safer but its margin requirement is on the other side of extreme (way to high)...
Bitmex is "regulated" in a tin pot country