You may close all or part of a spot position on margin by transferring to us, directly from your account balance with no trade involved, funds of the type used by Kraken to make the initial margin extension (e.g., if you took an extension of margin from Kraken denominated in BTC, you must have sufficient BTC in your account to settle the position).
This is called position settlement. If your account balance is not sufficient, you may deposit additional funds into your account. If you have sufficient funds in your account, but they are not of the type used by Kraken to make the initial margin extension, you may execute an order for the type and amount of funds you need to settle the position (e.g., buy 1 BTC of BTC/USD). Note: If you have multiple open positions on margin, they will be closed in the order they were created following the "First In, First Out" (FIFO) rule.