The leu opened at 4.325/4.327 to the euro, compared to 4.3155/4.318 at closing the day before.
Within the first hour, the leu registered some unnoticeable oscillation and stayed at 4.325 levels against the euro.
The central bank announced Friday a leu-to-euro reference of 4.315 units, stronger than the previous reference of 4.3288 units.
On the money market, overnight rates rose to 5.5%-6% a year, from 5.1%-5.6% a year previously.