With Bitmex having issues with overload, stop losses, and communication generally, it's prime time for some competition.
Sign up here: deribit.com/reg-1198.5581
- Deribit has a trade/request execution speed which is 20-40x faster than Bitmex's engine.
- The perpetuals have funding fees, but occur every few milliseconds to keep the price normalized to the index vs every 8hrs which influences price.
Portfolio margin = you can use your unrealized PnL from perps, futures, and options to open new positions.
I'll personally be moving most of my trades there though, especially once they launch the $ETH + $BCH products they're planning.