Positions held open overnight may be charged rollover interest. In the case of forex instruments, the amount credited or charged depends on both the position taken (i.e. long or short) and the rate differentials between the two currencies traded. In the case of stocks and stock indices, the amount credited or charged depends on whether a short or a long position has been taken.
Although there is no rollover on Saturdays and Sundays when the markets are closed, banks still calculate interest on any position held open over the weekend. To level this time gap, Exclusive Markets applies a 3-day rollover charge on Wednesdays.