The leu closed at 4.548/4.55 per euro, from 4.557/4.56 per euro Friday.
The currency opened roughly flat against the euro, but appreciated in early trade, after the central bank said it has capped its weekly repurchasing operation at 4 billion lei (EUR876 million).
The leu firmed to an intraday high of 4.5435/4.545 to the euro after the announcement.
The central bank set the leu’s exchange rate at 4.5442 per euro, the strongest level since October 4. Against the US dollar, the leu’s indicative advanced marginally to 3.5195 units, from 3.52 units Friday.
In the money market, overnight rates were flat at 4.9%-5.4% a year.