The leu opened at 4.561/4.563 to the euro, close to Thursday closing values of 4.562/4.566 to the euro.
It later gained more ground, trading at 4.556/4.557 per euro, pushed by several euro sale orders, but transferred volumes remained low.
Shortly after 10:00 local time (GMT0700), the leu traded at 4.5595/4.5610 against the euro.
The Romanian central bank set Thursday the leu’s reference rate at 4.564 per euro, 0.25% stronger than 4.5754 per euro in the previous session.
On the money market Friday morning, overnight rates rose slightly to 5.25%-5.75% a year.