Data posted on the FMDQ Security Exchange where forex is officially traded showed the dollar traded at N410.50 compared to N409.30 it exchanged on Thursday last week (dollar to Naira).
Participants maintained bids between N394.00 and N419.30 per dollar before closing at N410.50 on Tuesday.
This happened as foreign exchange daily turnover increased by 14.77 percent to $40.80million from $35.55 million on Thursday, data from FMDQ indicated.
However, the exchange rate at the black market remained unchanged.
According to the data from Abokifx, the naira closed at N485.00 on Tuesday, the same rate it has exchanged hands since April 1.
As a result of this, the gap between the unofficial market and the I&E window is now at N74.50.