Diversified group Stara Planina Hold [BUL:5SR] led blue-chip gainers with a 3.91% share price rise on Monday.
Software group Sirma Group Holding [BUL:SKK] and lender Central Cooperative Bank (CCB) [BUL:4CF] followed with gains of 3.60% and 2.23%, respectively.
The wider BGBX40 index, which tracks the 40 most traded shares on the Sofia bourse, increased 0.66% to 98.17 points, while the BGTR30 index, in which companies with a free float of at least 10% have equal weight, advanced 0.56% to 486.38 points.
The BGREIT index, which tracks seven real estate investment trusts, edged up 0.04% to 136.05 points.
Total daily regulated market trading turnover amounted to 721,000 levs.
(1 euro = 1.95583 levs)