Bit coin short selling method (supports leverage 1 ~ 100 times)

https://www.bitmex.com/

Bitmax is an English company and a bit coin gift commercial exchange.Margin with margin to support leverage one to one hundred times fluidly(If you deposit 0.1 bit,Up to 10 bits can be traded)

It is not to trade in dollarsTo trade bit coin gifts with bit coinsTo do a deal, 
you must transmit a bit coin with Bit Max's individual, a bit coin purse.

100 times leverage is dangerousPlease recognize the danger and adjust your leverage to 1 time to 10 times and deal securely. 
If government regulations are announced and listed on the US futures market, the variability will be amazing. 
Because it is a UK company, it is the biggest advantage that individuals can also do margin trading (short sale).

https://www.bitmex.com/

Because the chart is inconvenient
https://cryptowat.ch/bitmex/btcusd-perpetual-futures/ 
 You can watch it with this. .