The leu opened at 4.5745/4.5770 to the euro, little moved from 4.5755/4.5775 to the euro Tuesday closing.
It later rose slightly, on low volumes, and traded at 4.5730/4.5755 versus the euro by 10:00 local time (GMT0700).
The other currencies in the region were also mostly flat against the euro.
The Romanian central bank set Tuesday the leu’s reference rate at 4.5772, slightly weaker on the day.
On the money market Wednesday morning, overnight rates rose to 5%-5.5% a year.