The leu closed at 4.374/4.375 per euro, from 4.3777/4.3785 per euro Wednesday.
It opened flat on the day and advanced slightly in early action, amid a calm market.
The central bank set the leu’s reference at 4.3748 units, slightly stronger on the day. Against the US dollar, the leu’s indicative won 0.4% on the day to 3.3308 units.
On the money market, overnight rates were flat at 3%-3.5% a year.