BLSE’s benchmark index, the BIRS, closed at 821.45 points on Friday, down 0.90% from a week earlier.
The bourse's investment fund index, the FIRS, added 6.97% from last Friday to 1,813.57 points.
BLSE’s total turnover fell to 177,949 marka ($118,100/91,000 euro) this week from 1.575 million marka last week.
Telekom Srpske [BANJ:TLKM-R-A] generated the biggest turnover of 30,254 marka on BLSE's official market this week.
The stock closed at 1.6 marka on Friday, down 0.62% from a week earlier.
The Banja Luka Stock Exchange (BLSE) is based in the Serb Republic.
No trading data for Sarajevo Stock Exchange (SASE), based in the Muslim-Croat Federation, was available by 1330 GMT on Friday.
The Muslim-Croat Federation and the Serb Republic are the two autonomous entities that make up Bosnia and Herzegovina.
(1 euro=1.95583 Bosnian marka)