The leu opened at 4.370/4.3715 to the euro, compared to 4.3735/4.3745 at closing the day before.
Within the first hour, the leu weakened slightly and it was trading at 4.3715/4.374 against the European coin at around 10:00 local time (GMT0700).
The central bank set the leu’s exchange rate at 4.3737 per euro Wednesday, 0.1% weaker than 4.3688 per euro in the previous day.
On the money market Thursday morning, overnight rates rose to 4.25%-4.75% a year, from 3.7%-4.2% a year Wednesday.