The naira has been swinging widely on the official market since the devaluation. It touched a new low of 853 naira per dollar on Wednesday, according to OTC market regulator, FMDQ Exchange.
The currency closed at 742 naira against the dollar on the official market on Thursday, Refinitiv data showed.
Dollar shortages on the official market have seen customers turning to the black market, helping to widen the gap between the spot rate and the black market, one trader said.
Nigeria has embarked on its boldest reform agenda in decades, including the removal of a popular but costly petrol subsidy and the loosening of restrictions on foreign exchange trading, a gamble President Bola Tinubu hopes will boost sluggish economic growth.
Analysts have warned that a weaker currency and the fuel subsidy removal would likely to push inflation higher in the short term.