A total of 1,257 NIS shares changed hands in turnover of 725,100 dinars. NIS closed down 0.34% at 578 dinars.
The BELEX15 index, which tracks the most liquid shares on the Belgrade Stock Exchange, ended the session down 0.11% at 688.45 points.
No blue-chip index members closed the session up on Friday.
The broader BELEXline, a free-float market capitalisation weighted index, closed down 0.06% at 1,494.73.
The total turnover on the bourse amounted to 1.7 million dinars ($17,100/14,500 euro) on Friday, down from 2.2 million dinars on Thursday, as 36 transactions were carried out.
In the period between September 14 and 18, BELEX15 went down 0.33% and BELEXline declined by 0.31%.
The total value of trading on the Belgrade stock market this week was 23.2 million dinars, versus 393 million dinars last week.
Trading in Treasury bonds contributed 1.7 million dinars to the total turnover on the stock exchange this week, versus 364.2 million dinars last week.
(1 euro = 117.597 dinars)