The leu opened at 4.278/4.28 against the euro, compared to 4.2775/4.28 at closing the day before.
Within the first hour, the leu showed some moderate oscillation and, at around 10:00 local time, it was trading at 4.2755/4.2775 to the euro.
The central bank computed Monday a leu to euro reference of 4.2805 units, weaker than the previous reference of 4.2657 units.
On the money market, overnight rates eased up to 4.25%-4.75% a year, from 4.05%-4.55% a year previously.