Unior's share price dropped 11.82% on Friday after growing by 10% on Thursday.
Telekom Slovenije [LJE:TLSG] and chemicals maker Cinkarna Celje [LJE:CICG] were the other major decliners, losing 1.70% and 1.06%, respectively.
Drug maker Krka [LJE:KRKG] was the most traded company, with deals in its shares accounting for a turnover of 344,000 euro. Shares in Krka ended 0.82% lower.
Total daily turnover amounted to 1 million euro ($1.2 million).
($ = 0.8271 euro)