The leu opened at 4.434 to the euro, stronger than 4.4385/4.44 to the euro at Wednesday closing.
It further gained ground and traded at 4.4305/4.433 units by 10:00 local time (GMT0700), but the traded volumes were low.
The leu strenghtening started late Wednesday, and it seems that some investors took profits by closing long positions, as the trend reversal was abrupt, a banking dealer said.
On Wednesday, the central bank set the leu’s reference rate at 4.4463 per euro, the fourth consecutive all-time low. Since the beginning of the year, the leu lost some 3% against the European currency.
On the money market Thursday morning, overnight rates were at 4.5%-5% a year.