4.13 Mirror Accounts:
Nostro mirror accounts are shadow accounts maintained by the banks corresponding to the nostro accounts maintained with the correspondent banks. Transactions in the nostro accounts are replicated in mirror accounts in exactly the opposite manner, viz., debits in nostro accounts are matched by credits in mirror accounts and vice versa. They reconcile.
4.14 Open Currency position:
The sum of the open currency spot position and the open currency forward position, is the measure of the foreign exchange risk. The open currency position is the difference between assets and liabilities in foreign currency plus the forward forex purchased and sales. The open currency position is the measure of the foreign exchange risk.