Eurohold's share price dropped 3.73% on Friday following a 4.55% rise on Thursday.
Other major decliners included software group Sirma Group Holding [BUL:SKK] and Doverie United Holding [BUL:5DOV], which lost 2.63% and 2.13%, respectively.
The wider BGBX40 index, which tracks the 40 most traded shares on the Sofia bourse, decreased 0.50% to 97.53 points, while the BGTR30 index, in which companies with a free float of at least 10% have equal weight, slid 0.43% to 483.68 points.
The BGREIT index, which tracks seven real estate investment trusts, lost 0.11% to 136 points.
Total daily regulated market trading turnover amounted to 659,000 levs.
(1 euro = 1.95583 levs)