Fertiliser maker Neochim [BUL:NEOH] paced the blue-chip gainers after rising 2.50% to 41.00 levs.
By contrast, diversified group Doverie United Holding [BUL:DUH] was the chief blue-chip decliner, erasing 3.14% to 6.78 levs.
Advances in Industrial Holding Bulgaria [BUL:IHB] and Stara Planina Hold [BUL:SPH] helped push ahead both the BGBX40 index, which tracks the 40 most traded shares on the Sofia bourse, and the BGTR30 index, under which companies with a free float of at least 10% have equal weight.
The BGBX40 rose 0.51% to 135.27 points while the BGTR30 added 0.43% to 706.24 points.
With a 5.00% jump in stock price, Industrial Holding Bulgaria finished the trading session at 1.89 levs whereas Stara Planina Hold gained 4.65% to 9.00 levs.
The BGREIT index, which tracks seven real estate investment trusts, climbed 0.25% to 177.40 points, buoyed by Bulgarian Real Estate Fund REIT [BUL:BREF] which ticked up 1.00% to 2.02 levs.
Total turnover on the BSE's main market, however, slumped to just 505,171 levs ($257,028/258,290 euro) after surging to 4.24 million levs on Monday.
The most traded stock was Capital Management SPV [BUL:CAPM], which generated a turnover of 101,380 levs in a trading volume of 1,370 shares. The stock closed 0.67% lower at 74.00 levs.
(1 euro = 1.95583 levs)