The leu opened at 4.265/4.267 versus the euro, little changed from 4.264/4.267 versus the euro at closing the day before.
Within the first hour of trading, the leu strengthened gradually and, at around 10:15 local time, it was trading at 4.2605/4.2615 to the euro.
The central bank set Monday a reference rate of 4.2685 lei to the euro.
On the money market, overnight rates stayed at 2.1%-2.6% a year.