Initial Margin (Cost) is the minimum margin required to open a position. Once the position is opened, this is referred to as the Position Margin. It is calculated as:
Position Margin = Entry value/leverage + Unrealised PNL
The Maintenance Margin is the minimum amount of margin you must have on your position before the position is taken over by the liquidation engine. Unrealised losses are deducted from the Position Margin until only the Maintenance Margin remains.
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Access to trading or holding positions on BitMEX is prohibited for any person or entity that is located, incorporated or otherwise established in, or a citizen or a resident of: (i) the United States of America, Québec (Canada), the Hong Kong Special Administrative Region of the People’s Republic of China, the Republic of Seychelles, Bermuda, Cuba, Crimea and Sevastopol, Iran, Syria, North Korea or Sudan; (ii) any state, country or other jurisdiction that is embargoed by the United States of America; or (iii) any other jurisdiction where the services offered by BitMEX are restricted (collectively “Restricted Jurisdictions”). If it is determined that any BitMEX user has given false representations as to their location, incorporation, establishment, citizenship or residence, or HDR detects a user is from a Restricted Jurisdiction as described above, HDR reserves the right to immediately close their accounts and liquidate any open positions. HDR may, in its sole discretion, implement controls to restrict access to the BitMEX trading platform in any of the Restricted Jurisdictions.