The leu closed at 4.264/4.267 per euro, from 4.2635/4.2665 per euro Friday.
Elsewhere in the region, the leu’s peers were losing around 0.7% on average against the euro.
The leu opened down at 4.267/4.27 per euro and further lost ground, hitting an early low of 4.279 per euro. It later changed trend and traded near 4.27 per euro for the rest of the session.
The central bank’s reference rate strengthened slightly to 4.2685 to the euro, from 4.2717 to the euro Friday.
Against the Swiss franc, however, the rate fell to a new record low of 3.7187 units, following growing concern over the European debt crisis. The leu also retreated versus the US dollar, falling 0.78% at 3.0368 units, from 3.0133 units Friday.
On the money market, overnight rates fell to 2.2%-2.7% a year, from 2.4%-2.9% a year Friday.