The leu opened at 4.120/4.121 to the euro, close to 4.1205/4.123 at closing the day before.
Within the first hour of trading, the leu showed narrow fluctuation and, at around 10:10 local time (GMT0710) it was trading at 4.118/4,120 to the euro.
Other currencies in the region were seeing a similar pattern of evolution.
The Romanian central bank’s reference rate weakened 0.4% Monday, to 4.1263 per euro, from 4.1091 per euro in the previous session.
On the money market, overnight rates jumped to 4.25%-4.75%, from 2.02%-2.51%, since Tuesday is the first day of the reserves period.