The leu opened at around 4.338 to the euro, compared to 4.345/4.3465 to the euro at Thursday closing.
Within the first hour, the leu continued to strengthen and, at around 10:15 local time (GMT0815), it traded at 4.3325/4.334 to the euro.
Thursday, the Romanian central bank set the leu’s reference at 4.3446 per euro, 0.4% stronger on the day. Against the US dollar, the leu’s indicative won 0.34% to 3.4074 units.
On the money market Friday morning, overnight rates were almost unchaged at 1.75%-2.25% a year.