BitMEX is a derivative trading platform founded in 2014 and registered in the Seychelles. It is a cryptocurrency trading platform that operates around the world, and it was the first to launch leveraged swap contract. BitMEX is one of the largest trading platforms with a daily trading volume over $2.9 billion. This crypto exchange supports margin trading. Moreover, it accepts deposits via BTC only, which can be used to purchase a variety of other cryptocurrencies.
Unlike other exchanges, BitMex has not suffered any hacks. They offer complex measures for protecting funds. For example, each withdrawal is checked manually by at least two BitMEX employees. No private keys are kept on any cloud server, they use deep cold storage for holding funds. You can check out all their security measures right here.
As you know, TradeSanta supports up to 4 platforms, but we can say that the best is yet to come: we plan to expand the list of supported exchanges, and add Bitmex.