The BELEX15 shed 0.31%, closing at 997.11 points.
Dunav Osiguranje was the sole blue-chip decliner on Friday, dropping 2.02% to 1,021 dinars on a volume of 1,100 traded shares.
At the other end, civil engineering company Energoprojekt Holding [BEL:ENHL] was the only blue-chip gainer, adding 1.09% to close at 370 dinars on a volume of 5,000 shares.
Blue-chip oil and gas giant NIS [BEL:NIIS], which closed unchanged at 800 dinars, generated the single largest turnover of 4.8 million dinars for the day.
The broader BELEXline, a free-float market capitalisation weighted index, also dropped, closing 0.05% lower at 2,235.58 points.
Total turnover on the Belgrade bourse fell to 10.5 million dinars ($10,200/94,000 euro) on Friday from 14.8 million dinars on Thursday.
(1 euro = 117.042 dinars)